970/1 070 tractor service manual€¦ · cylinder sleeves (inspection) ... "high boiling...

970/1 070 TRACTOR

SERVICE MANUAL '

9-77365

http://www.jensales.com/products/case-tractor-service-manual-ca-s-970-tm.html

SERIES SECTION 10

1010 1011 1012 1012 1013 1021 1022 1030 1041 1051 1061 1071

20 2008 2009

26

2001 2002 2015 2025 2032 2035 2046 2055

24 2290

30 35

3010 3012 3013 3015 3016

TABLE OF CONTENTS 970-1070 TRACTORS

DESCRIPTION FORM GENERAL NUMBE~ General Specifications - 970 Tractors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-79264 General Specifications - 1070 Tractors. .. .......... . .... . .. ..... . . . . .... 9-79273 Lubrication - 970 Tractors (Prior to SN8770001) . . . . . . . . . . . . . . . . . . . . . . . . . 9-79214 Lubrication - 970 Tractors (Starting with SN8770001) . . . . . . . . . . . . . . . . . . . .. 9-46021 Lubrication - 1070 Tractors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-79223 Detailed Specifications - 451 BD Engine................................. 9-77075 Detailed Specifications - 401 BD Engine.. .. .. . .. .. . .. .. .. .. .. . .. .. . .. ... 9-77065 Fuel System - Diesel ............................................... , .. . 9-76115 Hydraulic System ...............................•.................... ' .. ' 9-77135 Steering System....................................................... 9-77155 Power Train....... ............. .........•.........•.. ................. 9-77165 Brake System .................................••.•.................... 9-77205 ENGINES - GASOLINE Cylinder Head and Valves ........................ , .................... . Engine Block Assembly .....................................•.......... Governor .................................•.•....•..•................. ENGINES - DIESEL Engine Diagnosis .....................•.................•.............. Engine Tune-Up ...................................................... . Cylinder Head, Valve Train and Camshaft .......••.•..•.....•........... Cylinder Block, Sleeves, Pistons and Rods .....•..•...•................. Splitting Tractor between Engine and Torque Tube •...•................ Crankshaft, Main Bearings, Flywheel and Oil Seals •.•......•..•......... Lubrication System, Oil Pump and Oil Flow Diagrams ...•.•.............. Cooling System ............••..................•.•.................... ENGINES - GASOLINE & DIESEL Air Intake System .............................•••...................... Reconditioning Engine Cylinder Block ....•...•...•.................... FUEL SYSTEM Carburetor ........................................................... . Diesel Fuel System and Filters ......•..............•.....•.............. Robert Bosch Fuel Injection Pumps .................................... . Roosa Master Fuel Injectors ... , .......................... -............. . Repairing Polyethylene Fuel Tanks .................................... . Repairing Cast Nylon Fuel Tanks ...............•...•...................

9-78843 9-77225 9-79411

9-76365 9-76379 9-76166 9-76176 9-79135 9-76187 9-76805 9-76337

9-78721 8-21170

9-79491 9-75297 9-74937 9-74959 9-76305 9-79753

".


1021-2

TABLE OF CONTENTS

RUN-IN INSTRUCTIONS .......................................................................................................... 3,4

DETAILED ENGINE SPECIFICATIONS ................................................................................ 5-10

Cylinder Sleeves ....................................................................................................................... 5

Piston ....................................................................................................................................... 5

Piston Rings ......... ..................................................................................................................... 5

Oil Ring ................................................................................................................................... 5

Piston Pin .............................................................................................................................. .. 5

Connecting Rod ............................................................................................................ :........... 6

Crankshaft ............................................................................................................................. 6,7

Camshaft .................................................................................................................................. 7

Valve Push Rod Lifters ............................................................................................................ 7

Gear Train ............................................................................................................................. 7,8

Oil Pump .................................................................................................................................. 8

Cylinder Head .......................................................................................................................... 8

Intake Valve ............................................................................................................................. 8

Exhaust Valve .......................................................................................................................... 9

Intake and Exhaust Valve Guides ............................................................................................ 9

Valve Spring ............................................................................................................................ 9

Rocker Arm Assembly ......... ............................... ............ ..................................................... ... 10

SPECIAL TORQUES .................................................................................................................. 11

GENERAL TORQUE SPECIFICATION TABLE ........................................................................ 12


1022-2

TABLE OF CONTENTS

RUN-IN INSTRUCTIONS ........................................................................................................... 3,4.-

DETAILED ENGINE SPECIFICATIONS ................................................................................ 5-10

Cylinder Sleeves .... -.............................................................................................................. ..... 5

Piston ....................................................................................................................................... 5

Piston Rings ............................................................................................................................. 5

Oil Ring ................................................................................................................................... 5

Piston Pin ................................................................................................................................ 5

Connecting Rod ...................................................................................................... ................... 6

Crankshaft ............................................................................................................................. 6,7

Camshaft .................................................................................................................................. 7

Valve Push Rod Lifters ................................................................. -........................................... 7

Gear Train ............................................................................................................................. 7,8

Oil Pump .................................................................................................................................. 8

Cylinder Head .......................................................................................................................... 8

Intake Valve ............................................................................................................................. 8

Exhaust Valve .......................................................................................................................... 9

Intake and Exhaust Valve Guides ............................................................................................ 9

Valve Spring ............................................................................................................................ 9

Rocker Arm Assembly ............................................................................................................ 10

SPECIAL TORQUES .................................................................................................................. 11

GENERAL TORQUE SPECIFICATION TABLE ........................................................................ 12


1061-4

Power Shift (Continued) Decimal System Metric System

Reverse Lockout Spring:

Free length ................................... ............................ 1.758 to 1.852" 44.653 to 47.041mm

Wire dia ................................................................................... 062" 1.575mm

Spring O.D. .. ............................................................................ 625" 15.875mm

No. of coils ............................................................. 9.5 (7.5 active)

Compress to .625" (15.875mm) ................................ 17.1 to 20.9 lbs. 76.1 to 93 N

Pressure Regulator Spring:

Free length ............................... ........................ ...................... 1.37" 34.8mm

Wire dia ................................................................................... 070" 1. 778mm

Spring O.D. .. ............................................................................ 531" 13.487mm

No. of coils .............................................. ................... 11 (9 active)

Compress to 1.00" (25.4mm) .................................... 13.5 to 16.5 lbs. 60 to 73 N

Modulator Primary Spring:

Free length ............................................................................. 1.61" 40.89mm

Wire dia. ............................................. .................................... .044" 1. 118mm

Spring O.D. .. ..................................................... Work in .437" bore 1l.lmm

No. of coils .................................. ........................ 14.5 (12.5 active)

Compress to 1.20" (30.48mm) ................................... 8.6 to 10.4 Ibs. 38.3 to 46.3 N

Modulator Secondary Spring:

Free length ................................................................................ 76" 19.3mm

Wire dia. .. ................................................................................ 022" .559mm

Spring O.D. .. ............................................................................ 265" 6.731mm

No. of coils .................................................................. 8 (6 active)

Compress to .43" (10.92mm) ...................................... 1.2 to 1.4 lbs. 5.3 to 6.2 N

Detent Spring:

Free length ............................................................................. 1.07" 27.18mm

Wire dia. ................................................................................. .066" 1.676mm

Spring O.D. . ............................................................................. 430" 10.922mm

No. of coils ............................................................. 9.5 (7.5 active)

Compress to .67" (17.02mm) ................................................. 30 lbs. 133 N

Lube Oil Spring:

Free length ............................................................................. 1.69" 42.93mm

Wire dia ................................................................................... 040" 1.016mm

Spring O.D. .. ............................................................................ 312" 7.925mm

No. of coils ............................................................... 16 (14 active)

Compress to .97" (24.64mm) .................................... 8.9 to 10.7 lbs. 39.6 to 47.6 N


2008-3

CHECKING COMPRESSION PRESSURE (continued)

6. Two common types of compression gauge equipment used are the remote control and the ignition switch operation type.

A. When using the remote control type of compression tester, Figure 1, make sure the v"oires are correctly attached to the starter terminals. Incorrect attaching of the wires will cause damage to the testing equipment, Figure 1.

"- ( 18mm ) ADAPTER

STA RTER SOLENOID

\

Figure 1

B. When using the ignition switch operation type of compression tester, Figure 2, be sure the carburetor throttle plate (butterfly) valve is held in the wide open position. Drain the carburetor to prevent fuel from entering the cylinders.

COMPRESSION GAUGE ---....

CHANKING

COMPRESSION ADAPTER ( 18mm)

Figure 2

ENGINE SPEED

Approximately 150 RPM

7. It is very important that all cylinder pressures be approximately alike. For the allowable compression pressure variation, refer to the chart below.

8. If the compression reading is below these figures, leaking valves or excessive ring clearance is indicated. NO Tt To make a simple check when a compression leak is indicated, squirt a small amount (a teaspoon) of oil into the cylinder and recheck the compression. If the pressure rises to near normal, compression loss is past the rings. Very little change in compression indicates leakage past the valves. A low pressure reading will cause difficulty In starting particularly at low temperatures.

NOTt Always take a second set of readings for an accurate check. This will also indicate how much the loss of cranking speed, due to battery discharge, is affecting the compression pressure reading.

9. Before installing the spark plugs, clean them thoroughly and check them for burned electrodes or cracked insulation. Replace them if necessary. Regap all plugs to .025" setting, Figure 3.

10. Replace all spark plug gaskets, Figure 3, before installing for proper seating and sealing. Install the spark plugs finger tight. Using the exact size spark plug wTench or a thin wall deep socket, torque the spark plugs 32 to 35 ft. Ibs.

( 18mm ) SPARK PLUG

ROUND FEELER GAUGE Will GIVE~GA'KET A MORE ACCURATE READING ~

Figure 3

ALLOWABLE NORMAL VARIATION

COMPRESSION BETWEEN PRESSURE CYLINDERS

140 PSI* 15 PSI

* A 4% reduction in PSI must be allowed for every 1000 ft. above sea level.


2009·2

TABLE OF CONTENTS

Camshaft, Bushings, Lifters and Timing Gears (Removal, Inspection) ..................................... 18

Camshaft, Bushings, Lifters and Timing Gears (Installation) ................................................... 20

Crankshaft and Bearing Liners (Inspection, Assembly) ............................................................ 28

Crankshaft, Pistons and Connecting Rods (Removal, Disassembly, Inspection) ........................ 22

Cylinder Sleeves (Inspection) ................................................................................................ 24·26

Engine Lubricating Oil and Coolant Systems .. , ........................................................................ 8,9

Flywheel, Seal Retainer, Oil Pan and Oil Pump (Removal) ..................................................... 10

Flywheel, Seal Retainer, Oil Pan and Oil Pump (Installation) ................................................. 12

Locating Top Dead Center .............................................................................. , .......................... 35

Oil Pump ................................................................................................................................... 14

Piston, Connecting Rod and Piston Rings (Assembly) .......................................................... 30·34

Piston and Cylinder Sleeves (Inspection) .................................................................................. 27

Special Torques ........................................................................................................................... 7

Specifications ............................................................................................................................ 3·6

Timing Gear Cover ........ ......... .............. ...... .... ................ ........... .... ... ... .......... ........ ....... ........ ..... 16


2015-2

TABLE OF CONTENTS

SPECIAL TOOLS ...................................................................................................................... 3,4

SPECIFICATIONS FOR TOOLS WHICH MUST BE MADE ........................................................ 4-

CYLINDER HEAD RECONDITIONING Cylinder Head Assembly ..................................................................................................... 19,20 Cylinder Head Inspection ......................................................................................................... 7 Cylinder Head Installation .................................................................................................. 20,21 Cylinder Head Torquing - Cold or Initial Torque ................................................................... 22 Cylinder Head Torquing - Hot ................................................................................................ 27 Diagnosis of Various Valve Bluing Patterns ....................................................................... 14-18 Expansion Plug Replacement ................................................................................................... 9 Locating Top Dead Center .............................................................................•............. : .......... 24 Manifold Stud Replacement ....................................................................................................... 9 Refacing Valves and Valve Seats ........................................................................•.................. 13 Removal ..................................................................................................................•............. 5,6 Rocker Arm Assembly ............................................................................................................ 23 Valve Bluing .................................................................................. : ........................................ 13 Valve Guide Replacement ...................................................................................................•.... 8 Valve Inspection ................................................................................................................. 10.11 Valve Seat Inspection ............................................................................................................. 11 Valve Seat Replacement ......................................................................................................... 12 Valve Tappet Adjustment - Cold Setting ................................................................................. 25 Valve Tappet Adjustment - Hot Setting with Engine Stopped ................................................ 28

CAMSHAFT Backlash - Camshaft to Crankshaft ....................................................................................... 39 Backlash - Camshaft to Idler Gear ........................................................................................ 40 Backlash - Idler Gear to Injection Pump ............................................................................... 41 Bushing Replacement - Front ............................................................................................. 32,33 Bushing Replacement - Intermediate .................................................................................. 32,33 Bushing Replacement - Rear .............................................................................................. 33,34 Camshaft - Assembly .......................................................................................................... 36,37 Camshaft - Installation ....................................................................................................... 37,38 Camshaft - Removal ........................................................................................................... 29-31 Idler Gear - Inspection ....................................................................................................... 38,39 Idler Gear - Installation ............................................................................. -............................ 39 Valve Lifters - Inspection ....................................................................................................... 35 Valve Lifters - Replacement ................................................................................................... 35


2025-2

TABLE OF CONTENTS

SPECIAL TOOLS ..................................................................................................................... : .. 3

CYLINDER BLOCK, SLEEVES, PISTONS AND RODS

Checking Connecting Rod Journals .................................................................................... 14,15

Checking Ring Gap .............................................. ................................. ............................. ..... 13

Checking Sleeve Protrusion .................................................................................................... 10

Connecting Rod Bearing Replacement ............................... ..................................................... 11

Connecting Rod Bushing Replacement .................................................................... : ............... 11

Connecting Rod Inspection .. : ................................................................................................... 11

Cylinder Sleeve Inspection ............................... ............................. ....................... ............... ... 6,7

Piston Inspection .................................................................................................................... 12

Piston Installation ................................................................................................................... 13

Sleeve Deglazing ...................................................................................................................... 8

Sleeve Installation ................................................................................................................ 9,10

Sleeve Removal ........................................................................................................................ 9


2035-2

TABLE OF CONTENTS

SPECIAL TOOLS ....................................................................................................................... .' 3

FRONT OIL SEAL REPLACEMENT ....................................................................................... 4-6

REAR OIL SEAL REPLACEMENT ......................................................................................... 6-8

OVERSIZE REAR OIL SEAL AND WEAR SLEEVE INSTALLATION .................................. 9,10

REPLACEMENT OF MAIN BEARINGS WITHOUT REMOVING CRANKSHAFT ................ 11-14

Bearing Liner Installation ....................................................................................................... 12

Bearing Liner Removal .................................................................................................. : .... 11,12

Checking Main Bearing Oil Clearance ................................................................................ 12,13

Installation of Front Main Bearing with Oil Pump ............................................................ 13,14

Removal of Main Bearing Caps .................... ............................................................ .............. 11

CRANKSHAFT AND MAIN BEARINGS ................................................................................ 15-29

Checking Connecting Rod Bearing Oil Clearance ................................................................... 26

Checking Main Bearing Oil Clearance .................................................................................... 22

Checking Crankshaft Gear Backlash ....................................................................................... 24

Checking Crankshaft End Play ............................................................. ...................... ............ 25

Cleaning and Replacing Oil Nozzles ....................................................................................... 19

Crankshaft Assembly .............................................................................................................. 21

Crankshaft Inspection ............................................................................................................. 20

Crankshaft Installation ............................................................................................................ 22

Installation of Connecting Rod Bearing Caps ......................................................................... 27

Installation of Front Mounted Oil Pumps ........................................................................... 23,24

Installation of Main Bearing Caps .......................................................................................... 23

Main Bearing Cap Replacement ............................................................................................. 18

Piston and Connecting Rod Installation .............................................................................. 25,26

Reassembling External Engine Parts ................................................................................. 27-29

Removal of Crankshaft ....................................................................................................... 15-17

Thrust Bearing Inspection and Installation ............................................................................. 23

FLYWHEEL .......................................................................................................................... 30,31


Section

2046 LUBRICATION SYSTEM

Oil Pump, Heat Exchanger

and

Oil Flow Diagrams

TABLE OF CONTENTS

OIL FLOW DIAGRAMS ............................................................................................................ 2,3

SPECIAL TOOLS ........................................................................................................................ 4

OIL PUMP - SINGLE GEAR ................................................................................................... 4-9 Removal .............................................................................................................................. .. 4,5 Inspection .............................................................................................................................. 5-8 Installation ...................................................... , ...................................................................... 8,9

HEAT EXCHANGER WITH SINGLE FILTER .......................................................................... 10

HEAT EXCHANGER WITH DUAL FILTER ............................................................................. 11

J I Case Rae. 9·76805 PRINTED IN U.S.A.

A Tenneco Company


2055-2

TABLE OF CONTENTS

SPECIFICATIONS ....................................................................................................................... 2

SAFETY PRECAUTIONS '" ......................................................................................................... 3

CLEANING THE COOLING SYSTEM ......................................................................................... 3

WATER MANIFOLD REPLACEMENT Installation ............................................................................................................................. 4,5 Removal ................................................................................................................................... 4

THERMOSTAT REPLACEMENT Inspection ................................................................................................................... :.......... ... 6 Installation .............................................................................................................. ~.............. 6,7 Removal ................................................................................................................................ 5,6

WATER PUMP REPLACEMENT Removal ........................................................... : ........................... 7,8 Inspection ....................................................................................... 8 Water Pump Repair ........................................................................... 9-12 Installation .................................................................................. 1.3-14

SPECI FICATIO NS Type ..•........................................................................ Pressurized thermostat controlled by-pass:

Forced Circulation. Pump type ................................................... , .................................................. Vane type impeller Radiator cap .............................................................................................. 14 PSI (0.984 kg/cm2) Thermostat ............................................................................................................... Start to open

at approximately 1750F (790C.) Fully Open at 2020F. (94°C) Cold weather coolant ............................................. '" .............. ........... ........... Reputable top brand

"High Boiling Point" Anti-Freeze


2290-2

TABLE OF CONTENTS

RECONDITIONING THE LOWER COUNTERBORE AREA FOR THE CYLINDER SLEEVE ........... 3-29

Using The Power Tool With Bore Cutter and Chamfer Cutter ................................... 3-23

Trouble Shooting The Lower Bore Power Tool .................................................. 24

Using The Hand Tool With Chamfer Cutter ................................................... 25-30

Lower Bore Bushings and Bore Diameter Specifications .................................... 6 and 14

Chamfer Cutter Setting .............................................................. '.' . : ...... 18

RECONDITIONING THE UPPER COUNTERBORE AREA FOR THE CYLINDER SLEEVE ........... 30-37

Rae 8-21170 Issued 8-78 Printed in U.S.A.


SERIES SECTION 40

4010 4011 4014

44 45

4019 50

5010 5010

53 54

5015 60

6001 62

6130 64 66

6020 6045

J I Case A Tenneco Company

HYDRAULICS


DESCRIPTION

Hydraulic Oil Filters .................................................. . Dual Hydraulic Pump ............................... " ................ . Dual Remote Valve ................................................... . Flow Divider - PTO Control Valve ...................................... . Draft-O-System ...................................................... . Break-Away Couplings and Portable Cylinders ......................... . STEERING Steering Column and Pump-Valve (Starting wi SN8693001) ........... '.' .. Steering Column and Hand Pump (Prior to SN8693001) ............. , ... . Steering Control Valve ................................................ . Hydrostatic Steering Actuator ......................................... . Steering Axles ........................................................ . POWER TRAIN Trouble Shooting RPS-34 Power Shift ................................. . RPS-34 Power Shift(Prior to SN8772549) ............................... . RPS-34 Power Shift (Starting w/SN8772549) ........................... . Single Reduction Final Drive and Transmission ........................ . 14" & 15" Traction Clutches and Pedals - Mechanical Shift .............. . Torque Limiter Clutch(Starting w/SN8725656) ......................... . Hydraulic PTO ....................................................... .

FORM

9-79113 9-79083 9-79033 9-79192 9-79123 9-74197

9-74269 9-78853 9-78832 9-78782 9-78773

9-76037 9-79074 9-79146 9-78963 9-78972 9-79125 9-79173

Rae 9-79333 Printed in U.S.A


Section 4014

DUAL REMOTE VALVE

TABLE OF CONTENTS

Remote Valve, Removal and Installation .................................................................................... 2

Remote Valve, Disassembly ........................................................................................................ 4

Remote Valve, Inspection ............................................................................................................ 6

Remote Valve, Assembly ............................................................................................................ 8

Testing Pilot Operated Relief Valve with A Hand Pump .......................................................... 10

S PECI FICATIONS

Pilot operated relief valve setting Cranking PSI Main Relief PSI

770 ........................................ 1100 to 1300 ......................................... 1350 to 1550

870 ........................................ 1100 to 1300 ......................................... 1350 to 1550

970 ........................................ 1500 to 1700 .......................... :.............. 1700 to 1900

1070 ........................................ 1700 to 1850 ......................................... 1900 to 2050

1090 ........................................ 1850 to 2050 ......................................... 2050 to 2250

1170 ........................................ 1850 to 2050 ......................................... 2050 to 2250

1175 ........................................ 1850 to 2050 ......................................... 2050 to 2250

NOTE: See page 6 for the spring specifications

Special Torques

Valve end cover bolts ........................................................................................... 35 to 40 ft. lbs.

J I Case Rae. 9-79033 PRINTED IN U.S.A.

A Tenneco Company


Section

45 DRAFT-O-MATIC HYDRAULIC SYSTEM

TABLE OF CONTENTS Specifica tions ........................................................................................................................... 45-1 Draft-O-Matk Arms, Lift Links and Turnbuckle Link

(770, 870 and 970 Tractors) .................................................................................................. 45-2 Draft-O-Matic Arms, Lift Links and Turnbuckle Link (1070 Tractors) .................................... 45-6 Draft-O-Matic Arms, Lift Links and Turnbuckle Link

(1070 Heavy Duty, 1090, 1170 and 1175 Tractors) ................................................................. 45-10 Lower Draft-O-Matic Sensing Linkage ................................................................................... 45-12 Upper Draft-O-Matic Sensing Linkage ................................................................................... 45-14 Rockshaft Housing and Components ................................................ 00 •••••••••••••••••••••••••••••••••••• 45-18 Draft-O-Matic Control Valve .................................................................................................. 45-20 Draft-O-Matic Adjustments .................................................................................................... 45-24 Draft-O-Matic Check-Out Procedure ....................................................................................... 45-28 Draft-O-Matic Test Fixture .................................................................................................... 45-30

SPECIFICATIONS Draft Control rod assembly pre-adjusted to ...................................................................... 3-13/16" Draft-O-Matic control valve spool travel ....................................................•.......................... 1/32" Draft arms free travel at top of lift .................................................................................... 1-1/2" Draft-O-Matic and Hand Lever Pull ............................................................................... 12-15 lbs. Rockshaft R.H. bushing LD ................................................................................................ 2.3745" Rockshaft L.H. bushing LD. . ............................................................................................... 2.747" Rockshaft oil clearance ............................................................................................. 002" to .005"

Spring Specifications Control valve spring specifications ................................................................. Refer to Page 45-20

Special Torques Cross Bar Retaining Nuts .................................................................................... -......... 200 ft. lbs. Link "H" to draft control shaft bolt ..................................................................... 15 to 18 ft. Ibs. Draft-O-Matic control rod assembly to piston rod arm and link "F" bolts .......... 15 to 18 ft. lbs. Draft-O-Matic control valve to rockshaft housing bolts ......................................... 15 to 18 ft. lbs. Rockshaft housing cover bolts ............................................................................... 15 to 18 ft. lbs. Rockshaft piston rod retainer bolts ....................................................................... 35 to 40 ft. lbs. Piston rod arm set screws .................................................................................... 40 to 50 ft. lbs. Cam lock bolts ................................................................................................... 250 to 300 ft. lbs. Lower sensing rod to vertical draft sensing shaft bolt ......................................... 15 to 18 ft. lbs. Lower sensing rod rear jam nut ........................................................................... 40 to 50 ft. lbs.

J I Case e RAG. 9-79123 PRINTED IN U.SA

A Tenneco Company


Section 4019

BREAK-AWAY COUPLINGS AND

PORTABLE HYDRAULIC CYLINDERS

TABLE OF CONTENTS

Break-away couplings .......................................................................................................... 4019-2

ASAE Standard Break-away Couplings ................................................................................ 4019-4

3-1/4" x 8" and 4" x 8" Hydraulic cylinders with mechanical stop ....................................................................................................... 4019-6

3-114" x 8" and 4" x 8" hydraulic cylinders with hydrauliC and collar locking limit stop ..................................................................... 4019-8

3-114" x 8" and 4" x 8" hydraulic cylinders with hydrauliC and clamp type locking limit stop ............................................................ 4019-10

Portable cylinder jack pad and base ................................................................................. 4019-12

J I Case Rae. 9-74197 PRINTED IN U.S.A

A Tenneco Company


Seclion

5010 TILTING AND TELESCOPING STEERING COLUMN

WITH STEERING PUMP-VALVE

TABLE OF CONTENTS

Adjustable Steering Column & Steering Pump, Removal .................................................... 5010-2 Adjustable Steering Column & Steering Pump, Installation ................................................ 5010-4 Steering Pump, Disassembly..................... .................. ........................................................ 5010-8 Steering Pump, Assembly ................................................................................................... 5010-10

SPECIFICATIONS

Spring Specifications ........................................................................................... See Page 5010-4 Steering Column Mounting Studs ............................................................................. 25-30 In. Lbs. Steering Wheel Retaining Nut .................................................................................. 30-35 Ft. Lbs. Steering Wheel Lock Knob Nut ................................................................................ 20-25 Ft. Lbs. Steering Pump

Commutator to Commutator Ring Thickness Difference ........................................ 0.0015" Max. Rotor to Stator Clearance ........................................................................................ 0.006" Max. Rotor to Stator Thickness Difference ....................................................................... 0.002" Max. Vane Height .............................................................................................................. 0.250" Min. Vane Spring Free Height .......................................................................................... 0.076" Min. Upper Cover Needle Bearing Press Fit Dimension ..................................................... 1.28/1.30"

J I Case Rae 9-74269 PRINTED IN U.S.A.

A Tenneco Company


Section 5010

RIGID AND ADJUSTABLE STEERING COLUMNS WITH HAND PUMP

(Prior to Tractor SN 8693001)

TABLE OF CONTENTS

Rigid Steering Column .. 5010-2

Adjustable Steering Column. 5010-4

Steering Column Tilt Adjustment 5010-6

Manual Steering Pump . . . . . 5010-8

SPECIFICATIONS

Steering Column Mounting Studs .............................. 25-30 In. Lbs.

Steering Column Mounting Stud Jam Nuts ....................... 30-35 Ft. Lbs.

Steering Wheel Retaining Nut . . .......................... 30-35 Ft. Lbs.

Steering Wheel Lock Knob Nut .............................. 17-21 Ft. Lbs.

Manual Steering Pump

Steering Shaft to Body Clearance ..... . ............. 006" Max.

Rotor to Stator Clearance .......... . . ............ 007" Max.

Vane Height .............................................. 250" Min.

Vane spring free height ...................................... 076" Min.


A Tenneco Company


Section

62 POWER SHIFT TRANSMISSION

Prior to tractor SN 8772549

TABLE OF CONTENTS General Inspection .......................................................................... : ....................................... 62-2 Power Shift Service Procedure ............................................................................................... 62-2 Introduction ............................................................................................................................. 62-3 Inching Pedal and Linkage ..................................................................................................... 62-4 Power Shift Control Valve and Lubrication Oil Relief Valve .................................................. 62-6 Power Shift Control Valve ..................................................................................................... 62-10 Power Shift and Housing ....................................................................................................... 62-12 Planetary Output Shaft .......................................................................................................... 62-16 C-2 and C-3 Clutch Pack ........................................................................................................ 62-18 Planetary Carrier Assembly .................................................................................................. 62-22 C-1 and C-4 Power Shift Clutches .......................................................................................... 62-24 Power Shift Piston Seals and Wires ...................................................................................... 62-26 Torque Limiter Clutch ........................................................................................................... 62-28 Shuttle Valve Kit, Parts removal and installation ................................................. 62-29 thru 62-31 Transmission Top Cover modification with new control valve ....................................... 62-32,63-33 Power Shift Fixture ............................................................................................................... 62-34 C-2,C-3 Clutch Pack Assembly Adapter ................................................................................... 62-35

Special Torques Power shift valve cover bolts ................................................................................ 30 to 35 ft. lbs. Tube fittings and locknuts ........................................................................................ 4 to 6 ft. Ibs. Reverse lockout tube nuts '" .............................................................................. 119 to 131 in. lbs. Selector spool detent spring plug .......................................................................... 25 to 30 ft. Ibs. Retard needle hex nuts ............................................................................................ 5 to 7 ft. lbs. Test port pipe plugs ............................................................................................... 7 to 10 ft. lbs. Pilot valve plugs ................................................................................................... 13 to 15 ft. Ibs. Shuttle valve plug ................................................................................................. 17 to 20 ft. lbs. Inching spool plug ................................................................................................. 17 to 20 ft. Ibs. Selector spool retainer cover bolts ........................................................................... 7 to 9 ft. lbs. Reverse lockout plug ............................................................................................ .- 22 to 25 ft. lbs. Power Shift housing rear nuts ........................................................................... 400 to 485 ft. lbs. Drilled plugs (oil tubes) ...................................................... 150 in. lbs. more than thread torque.' Oil distributor cover bolts ..................................................................................... 35 to 42 ft. lbs. C-3 hub to oil distributor hub capscrews ................................................................ 9 to 11 ft. lbs. C-2 thru C-3 hub capscrews (use locktite) ............................................................ 45 to 50 ft. lbs. C-l and C-4 carrier bolts ....................................................................................... 45 to 54 ft. lbs. Torque limiter bolts ............................................................ '" ............................... 80 to 96 ft. lbs. Power Shift housing bolts 3/4" ........................................................................... 270 to 324 ft. lbs. Power Shift housing bolts 1/2" .............................................................................. 80 to 96 ft. lbs.


A Tenneco Company


6130-2

TABLE OF CONTENTS

SPECIAL TOOLS ................................................................................. 4

GENERAL SPECiFiCATIONS ....................................... '" ............................ 5-

SPECIAL TORQUES .............................................................................. 5

GENERAL INFORMATION .......................................... '" ... , ........................ 6

SERVICING RPS-34 POWER SHIFT Power Shift Removal ......................................................................... 7-14

Rebuilding and Installing Oil Distributor Carrier and Mainshaft .................................. 15-21

Disassembling Ring Gear, (C-3) Clutch Hub and Clutch Plates, (C-2) and (C-3) Piston Carrier and (C-2) Clutch Hub and Clutch Plates .................. 22,23

Rebuilding (C-2) and (C-3) Piston Carrier - Prior to Transmission SN10Q63644 .................. 24-27

Rebuilding (C-2) and (C-3) Piston Carrier - Transmission SN10063644 and After ................ 28-31

Rebuilding (C-3) Clutch Hub ................................................................. 32-34

Assembling (C-3) Clutch Hub and Clutch Plates, Ring Gear and (C-2) and (C-3) Piston Carrier ................................................. 35-38

Rebuilding (C-2) Clutch Hub and Clutch Plates ................................................ 39,40

Installing (C-2) Clutch Hub Assembly Into Planetary Ring Gear Assembly ............................................................... 41-43

Planetary Ring Gear Assembly Installation .................................................... 44,45

Rebuilding Power Shift Planetary ............................................................. 46-50

Installing Power Shift Planetary .............................................................. 51-54

Rebuilding {C-4) Clutch Assembly ........................................................... 55-58

Assembling (C-4) Clutch Plates .............................................................. 59-61

Installing (C-4) Clutch Assembly ............................................................. 62-64

Installing (C-1) Clutch Plates ................................................................ 65-67

Installing PTO Shaft Drive Gear and Support Bushing ............................. _ ............... 68

Installing (C-1) and (C-4) Oil Suppy Tubes .................................................... 68-69

Installing Transmission Top Cover and Power Shift Control VAlve .............................. 71-73

Rae 9-79146 Printed in U.S.A.


Section

64 SINGLE REDUCTION FINAL DRIVE

AND TRANSMISSION

TABLE OF CONTENTS Specifications .......................... ................................. ................... ........ .... ............ ............ ..... 64-2 Special torques ..... .............. .............................. ............ .... ............ ......................................... 64-2 Service procedure . .............. ...... ....................... ............. ......... .............................................. 64-2

Removal Sequence ............................................................................................................ 64-2 General inspection . ...... ..... ...... ....... ............... ............ ........... ...... ....................................... 64-2 General assembly ................................................................................................ ............. 64-3

Introduction .......................................................................................................................... 64-3 Shift sequence .................................................................................................................... 64-3 Mechanical Shift (770-870 tractors) .............. ............................. ........... ......... ..................... 64-4 Mechanical Shift (970-1070 tractors) ................................................. ................................. 64-5 Mechanical Shift (1090 tractors) ...................................................... ................................. 64-6 Power Shift (770-870 tractors) ......................................................................................... 64-7 Power Shift (970-1070 tractors) ..................................................... .... ............................... 64-8 Power Stift (1090 tractors) .............................................................. ................................. 64-9

Transmission Top Cover (Mechanical Shift) ........................................................................ 64-10 (Power Shift) ................................................................................ 64-12

Shifter Assembly (Mechanical Shift) ................................................................................... 64-14 (Power Shift) . .................................. ......... . .. .. .. .. .. .... ..................... 64-16

Range Shafts (Mechanical Shift - 770-870 tractors) ............................................................. 64-18 (Mechanical Shift - 970-1070-1090 tractors) ..................................................... 64-20

Sliding Gear Shaft (Mechanical Shift) ................................................................................. 64·22 (Power Shift) ......................................................................................... 64-24

Rear Axle and Final Drives (770-870 Tractors) ................................................................... 64-26 (970-1070-1090 tractors) .............................................................. 64-28

Differential Assembly (770-870 tractors) .............................................................................. 64-30 (970-1070 tractors) ............ ............................................. ..................... 64-32 (1090 tractors) ................................................................•.................. 64-34

Counter Shaft and Reverse Idler (Mechanical Shift) ........................................................... 64-36

Countershaft (Power Shift) ................................................................................................... 64-38

Transmission Adjustments ................................................................................................... 64-40

Tools ......................................................................... .......... .... ............ ...................... .. .. .. ..... 64-42


A Tenneco Company


Section

aa 14" AND 15" TRACTION CLUTCHES AND LINKAGE

MECHANICAL SHIFT

TABLE OF CONTENTS CI utch Pedal and Linkage 66-2

Clutch Release and Housing 66-4

14" Clutch Assembly . 66-6

15" Clutch Assembly . 66-8

SPECIFICATIONS

Clutch Free Pedal ..... . 1-1/8"

Center of Pedal Pad to firewall . . . . . . . . . . . . . . 8-5/16"

14" Clutch Release lever screw to face of pressure plate. 2.099"

15" Clutch Release lever screw to face of pressure plate .. 2.276"

Clutch Pedal 14" Clutch Cover 15" Clutch Cover Return Spring Springs Springs

Free Length 3.4" 2.5" 2.84"

Spring O.D. 1" 1.10" to 1.13" 1.365" to 1.385"

No. of Coils 18 9 8.5

Spring Rate 62.75 to 69.25 lbs. 145 to 155 lbs. 190 to 200 lbs. at length of 5.16" 1. 531" 1.94"

Rae. 9-78972


Section 6045

HYDRAULIC PTO

TABLE OF CONTENTS Specifications .................................................................................. : ..................................... 6045-1

PTO Assembly ..................................................................................................................... 6045-2

PTO Clutch .......................................................................................................................... 6045-4

1st Idler Shaft ...................................................................................................................... 6045-8

PTO Brake ........................................................................................................................... 6045-8

2nd Idler Shaft ...... .. ............ ..................... ......... ... .. . . ....... .... .................. .. ........ .... ............ ..... 6045-8

Dual Speed Output Shaft .................................................................................................... 6045-12

Single Speed Output Shaft .................................................................................................. 6045-16

Hydraulic Pick-Up Tube ..................................................................................................... 6045-16

Oil Filler Cap & Tube and Oil Breather ............................................................................. 6045-16

PTO Adjustments & Tests .................................................................................................. 6045-18

SPECIFICATIONS

PTO housing oil breather service interval ................................................ : .......... every 200 hours

PTO hand lever adjustment ........................................................................... 5 Lbs. pull at lever

Free travel of "Case" flow divider valve spool ....................................................................... 75"

Clutch plates used on 770-870 tractors ................................................................................ 4 each

Clutch plates used on 970-1070 and 1090 tractors (Prior Trans. SIN 2402975) ...................... 6 each

Clutch plates used on 970 and 1070 tractors (SIN 2402975 and after) ................................. 7 each

Clutch plates used on 1170 and 1175 tractors ..................................................... ~ ................ 7 each

Special Torques

Second idler shaft retaining bolt (Jay-Loc Type) ...................................................... 50-60 ft. lbs.

Second idler shaft retaining (12 Pt. capscrews) (Wire-locked) ............................... 120-150 in. lbs.

PTO shield stud nuts ................................................................................................. 25-40 ft. lbs.

Hydraulic pick-up tube bolts ...................................................................................... 17-20 ft. lbs.


A Tenneco Company


CA-S-970+TM

JJ..II .. CCaasseeService Manual

970 & 1070All Models

Volume 3 of 3

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF J.I. CASE OR IT’S SUCCESSORS. J.I. CASE AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Serv

ice

Man

ual


SERIES SECTION

70

80

90

100

J I Case

72 73

7012 7012

8010 8010 8010 8011 8011 8012 8013 8014 8114 8115 83

92a 9005 9015 9025

9035 9050

101 111 141 141 141 141 151 161 161

19010

A Tenneco Company


DESCRIPTION

BRAKES Brake Master Cylinders and Pedals .................................... . Power Assist Brake Unit and Pedals ................................... . Power Assist Brake Valve with Adjustable Relief Valve ................... . Differential and Parking Brake ......•................................... ELECTRICAL Tractor Wiring Diagram - Spark Igntion (Prior to SN8753831) ............ . Tractor Wiring Diagram - Diesel (Prior to SN8753831) ................... . Tractor Wiring Diagram .. (Starting W/SN8753831) ..................... . Cab Wiring Diagram (Starting W/SN7814176) .......................... . Cab Wiring Diagram (Prior to SN7814176) .............................. . Starting or Cranking Motors ........................................... . Battery Servicing and Testing ......................................... . Prestolite Alternator Systems .......................................... . Delco-Remy Alternator Systems ....................................... . Delco-Remy Alternator System ........................................ . Distributor Ignition Systems ........................................... . ACCESSORIES Cab Sealing and Recirculation ........................................ . Trouble Shooting - Air Conditioning System ........................... . Gauging and Testing - Air Conditioning System ........................ . Compressor Isolation, Removal, Installation and Evacuation System Discharging, Evacuation and Charging ........................ . Servicing Air Conditioning Components ............................... . Seat Adjustments (Swivel and Non Swivel) .................. -........... . HOW IT WORKS Hydraulic Testing, Steering - Power Brakes ............................ . Hydraulic Testing, Power Shift, Remotes and PTO ...................... . Hydraulic System ..................................................... . Dual Pump - Flow Divider Valve ....................................... . Dual Remote System ................................................. . Draft-O-Matic System ................................................. . Power Steering - Power Brakes ........................................ . Power Shift Transmission ....................................... ~ ..... . Hydraulic PTO ....................................................... . Air Conditioning System .............................................. .

FORM

9-78912 9-78923 9-45871 9-78903

9-77115 9-77106 9-79995 9-77698 9-77125 9-75366 9-75377 9-75399 9-78976 9-45901 9-74625

9-75915 9-78895 9-78995

9-79015 9-78705 9-79755

9-79821 9-79832 9-79691 9-79182 9-79022 9-79042 9-79162 9-79232 9-79242 9-78615,

e Rae 9-79333 Pnnted In U.S.A


Section

72

HYDRAULIC BRAKE MASTER CYLINDERS AND PEDALS

TABLE OF CONTENTS

Brake Pedals 72-2

Hydraulic Brake Master Cylinders Removal, Inspection, Installation and Bleeding . . . . . . . . . . . . . . . . . . .. 72-4

Hydraulic Brake Master Cylinders Disassembly, Inspection ana Assembly . . . . . . . . . . . . . . . . . . . . . .. 72-6

SPECIFICATIONS

Type Fluid . . . . . . . . . . . . . . . . . . . . . .. Case TCH or Type A-ATF

Fluid Level . . . . . • . . . . . . . • . . . . . .• . . . . . . . • .. 1/2" below filter neck

Brake Free Pedal . . . . . . . . . . .. ApFlroximately 1/8"

Brake Tube Nuts . . . . . . . . . . . . . . . . . • . . • . . 13 to 15 ft. lbs. torque

Brake Pedal Shoulder bolts ..... . . . . . . . . . . • . . . . . 80 to 95 ft. lbs. torque

Rac. Form 9-78912


Section

73 POWER ASSIST BRAKE UNIT AND PEDALS

TABLE OF CONTENTS Brake Pedals . . . . . . . 73-2

Power Assist Brake Unit 73-4

Power Assist Cover Assembly . 73-6

Power Assist Valve and Cylinder Assembly 73-8

SPECIFICATIONS Brake free pedal . Approximately 3/4"

Brake tube nuts . 13to 15 ft. lbs. torque

Brake fitting bolts 30 to 33 ft. Ibs. torque

Brake pedal shoulder bolts 80 to 95 ft. Ibs. torque

Spring Description Free No. of O.D. Length Coils

Rate At Length in Lbs.

Pressure Control (19) .566" 6 .375" 9.1 to 9.3 .396"

Pressure Control (45) .590" 7.75 .315" 4.8 to 5.8 .506"

Pressure Regulating (13) .665" 6 .594" 7.5 to 9.5 .54"

Pressure Relief (30) 1. 25" 5 .985" to 1.115" 119 to 145 .781"

Influx Pressure (inner) (42) .969" 7 .555" 52.5 to 68.5 .812"

Influx Pressure (outer) (43) 1.12 to 1.21" 5 .985" to 1.115" 119 to 145 .781"

Sump Relief Valve (38) .78" 6 .375" 1.0 to 1.2 .58"

Sump Relief Valve (44) .654" 8 .437" .31 to .37 .60"

Brake Piston (21) .65" 6 .437" 15.1 to 17.1 .40"

Boost Spool (29) 1.75" 10 .438" 8.1 to 9.9 1"

J I Case e Rae 9-78923

A Tenneco Company

PRINTED IN U.S.A.


Section

7012 DIFFERENTIAL AND PARKING_BRAKES

TABLE OF CONTENTS

Brake Linkage and Slave Cylinder ....................................................................................... 7012-2

Seven Inch Differential Brakes ............................................................................................ 7012-4

Eight Inch Differential Brakes .............................................. .... ............................. ...... ........ 7012-6

Parking Brake ...................................................................................................................... 7012-8

SPECIFICATIONS

Hydraulic Brake System ... ........... ... ........................................................................ Case TCH Oil CAUTION DO NOT USE BRAKE FLUID

Hydraulic Power Assist Brake System ....................... ......................................... Case TFD Fluid

Brake lever free travel ......................................................................... 375" at the slave cylinder with running clearance taken up by hand lever

Free O.D. No. Coils Load Length Length

Lever Return Spring (1) P. 7012-3 4" .875" 21.5 50 to 60 Ibs. 7.08" Cam Adjusting Spring (16) P. 7012-3 1. 72" .54" 15.75 55 Ibs. 2.72" Self Adjusting Spring (11) P. 7012-3 1.62" .18" 38 2.2 Ills. 1.95"

J I Case Rae. 9·78903 PRINTED IN U-SA

A Tenneco Company


Section 8012

STARTING OR CRANKING MOTORS

T ABLE OF CONTENTS General Starter Inspection ................................................................................................... 8012-2 Starter No Load Test ........................................................................................................... 8012-4 Field Coil Tests ....................................................................................................... _........... 8012-5 Armature Tests .................................................................................................................... 8012-6 Checking Pinion Clearance ................................................................................................... 8012-8 Solenoid Switch Tests ........................................................................................................... 8012-9 Starter or Cranking Motor Specifications· Delco-Remy ..................................................... 8012-10 Solenoid Specifications - Delco-Remy .................................................................................. 8012-10 Starter or Cranking Motor Specifications· Prestolite ......................................................... 8012-11 Solenoid Specifications· Prestolite ..................................................................................... 8012-11

J lease Rae. 9-75366 PRINTED IN U SA

A Tenneco Company


Section 8014

PRESTOLITE ALTERNATOR SYSTEMS

T ABLE OF CONTENTS

Prestolite Alternator Charging Systems ............................................................................... 8014-2 .

Precautions to be observed when Servicing the Systems ..................................................... 8014-4

Prestolite Alternator ............................................................................................................. 8014-4

Rotor Inspecting and Testing ............................................................................................... 8014-6

Testing Rectifier Diodes ....................................................................................................... 8014-7

Stator Ground and Open Tests ............................................................................................. 8014-7

Checking Alternator Resistor ............................................................................... -................ 8014-8~-~

Regulator Output Test .......................................................................................................... 8014· 9,

Alternator Output Test ....................................................................................................... 8014-10

Alternator Specifications .................................................................................................... 8014-11

Voltage Regulator Specifications ................................................................................... -'-.... 8014-11

J I Case Rae 9-75399 PRI~~7ED IN U.S.A. A Tenneco Company


Section 8114

DELCO-REMY 10-SI SERIES ALTERNATOR SYSTEM

DELCO-REMY PART NO. LOCATION REFER TO SPECIFICATIONS

TABLE OF CONTENTS Delco-Remy Alternator Charging System .........•..•••.......••.......•...•........................ 2 Precautions to be Observed when Servicing Alternator System ..••.•••..•...•.•. ~ ..•.•.......•......•. 4 Checking Indicator Lamp Operation ......•..........•••.••.••••••..•..••.•.......................... 6 Charging System Checks .•..•.................................•...•....•.•.....•..........•........ 8 Disassembly and Testing ..........•.......•..........••...••••.•••......•......................•.. 11 Assembly .................•.•.•..........................•.......•••..............•......•.......• 19 Alternator Bench Output Check .............................•.•..•••.......•....................... 25 Checking Alternator System Resistor ............................................................... 26

SPECIFICATIONS

FIELD CURRENT COLD OUTPUT RATED HOT

- OUTPUT 80 Deg. F. 75 Deg. F. 160 Deg. F. CASE DELCO-

PART NO. REMY NO. AMPS VOLTS AMPS RPM VOLTS AMPS

A135715 1102867 4.0-4.5 12 55 6500 13 50

A45202 1100585 4.0-4.5 12 61 6500 13 56

A137862 1102914 4.0-4.5 12 55 6500 13 50

J I Case A Tenneco Company e Rae 9-78976 PRINTED IN U.S.A.


Section

8115

DELCO-REMY 10-SI SERIES ALTERNATOR SYSTEM

DELCO-REMY PART LOCATION REFER TO SPECIFICATIONS

TABLE OF CONTENTS Delco-Remy Alternator Charging System ............................................................ 2 Precautions to be Observed when Servicing Alternator System ....................................... .4 Checking Indicator Lamp Operation ................................................................. 6 Charging System Checks ........................................................................... 8 Disassembly and Testing ...................................................... : ................... 11 Assembly ......................................................................................... 19 Alternator Bench Output Check .................................................................... 25 Checking Alternator System Resistor ............................................................... 26

SPECIFICATIONS FIELD CURRENT COLD OUTPUT RATED HOT

80 Deg. F. 75 Deg. F. OUTPUT 160 Deg. F.

CASE DELCO-PART NO. REMY NO. AMPS VOLTS AMPS RPM VOLTS AMPS

A47057 1102921 4.0-4.5 12 61 6000 13 56

A147159 1102928 4.0-4.5 12 61 6000 13 56

A47044 1102922 4.0-4.5 12 72 6500 13 64

A147160 1102930 4.0-4.5 12 72 6500 13 64


A Tenneco Company


Section

8S

DISTRIBUTOR IGNITION SYSTEMS

TABLE OF CONTENTS

Distributors, Introduction ........................................................................................................ 83-2 Contact Points ...................................................................................................................... 83-4 Cap ....................................................................................................................................... 83-6 Rotor .................................................................................................................................... 83-6

Coil Polarity ............................................................................................................................ 83-6 Distriburor Static and Running Ignition Timing ................................................ -: ..................... 83"7 Spark Plugs, Specfications ....................................................................................................... 83-8

Rea t Range ................................................................................................. " .. .. .. .... ............. 83-9 Electrode Condition ............................................................................................................. 83-10

High Tension Spark Plug and Coil Leads .............................................................................. 83-11 Checking Ignition Coil Resistor .............................................................................................. 83-12 Distributor Specifications ....................................................................................................... 83-13 Ignition Coil Specifications ..................................................................................................... 83-13 Static and Running Ignition Timing Chart ............................................................................. 83-14

Roc_ Form 9-74625


Section 92a

CAB SEALING AND RECIRCULATION FOR

MAXIMUM AIR CONDITIONING EFFICIENCY

TROUBLE SHOOTING CAB SEALING AND CIRCULATION

Problems Corrections Dust & Dirt Conditions inside of cab .................................................................... 92a-2 thru 92a-4

Dust & Dirt Conditions in the plenum area .......................................................................... 92a-5

i Evaporator freeze up in high humidity locations .................................................................... 92a-6 i

Increasing cab air recirculation for better cooling ............................................. 92a-7 thru 92a-12

TABLE OF CONTENTS Sealing 70 Series Cabs, prior to Cab SN 8712001 ................................................................... 92a-2

Re-Calibrating Air Conditioning Temperature Control ............................................................ 92a-6

Cab Air Recirculation Modification Cab SN 7806201 thru SN 7808979 ......................................................................................... 92a-·7

Cab Air Recirculation Modification Cab SN 7800801 thru SN 7805931 ......................................................................................... 92a-9


A Tenneco Company


Section

9025

COMPRESSOR ISOLATION, REMOVAL, INSTALLATION AND EVACUATION

DISCHARGING, EVACUATION AND CHARGING THE AIR CONDITIONING SYSTEM

TABLE OF CONTENTS

Safety Precautions ...................................................................................................................... 2

Special Tools .............................................................................................................................. . 3

Compressor Servicing Compressor Isolation and Removal ....................................................................................... 4-6

Compressor Installation and Evacuation ................................................................................ 7-9

Air Conditioning System Servicing Discharging the Air Conditioning System ........................................................................... 10-12

System Evacuation ............................................................................................................. 13,14

Charging the System with Refrigerant ............................................................................... 14-17

J lease Rae. 9-79015 PRINTED IN U.S.A.

A Tenneco Company


9035-2

TABLE OF CONTENTS

Safety Precautions ....................................................................................................................... 3

Special Tools ............................................................................................................................ 4,5

Compressor Belt Alignment and Tension Adjustment Two Wheel Drive Tractors ........................................................................................................ 6

Four Wheel Drive Tractors w/Rotary Type Compressor ............................................................ 7

Four Wheel Drive Tractors wi Piston Type Compressor ............................................................. 8

Compressor Oil Level Check Rotary Type Compressors ......................................................................................................... 9

Piston Type Compressors ................................................................................................ ......... 10

Servicing the Rotary Type Compressor Shaft Seal Replacement .................................................................................................... 11-18

Clutch Electrical Check ........................................................................................................... 19

Clutch and Pulley Replacement .................................................... ,.................................... 20-22

Front and Rear Head to Body "0" Ring Replacement ...................................................... 23-27

Servicing the Piston Type Compressor Clutch Replacement .......................................................................................................... 28-33

Seal Replacement ...... ........................................................................................................ 28-32

Clutch Electrical Check .......................................... ................................................................. 32

Reed Valve and Gasket Replacement ................................................................................. 34,35

Base Plate Gasket Replacement .............................................................................................. 36

Rear Cover "0" Ring Replacement ........................................................................................ 37

Condenser, Receiver-Drier and Tubing .................................................................................. 38,39

Evaporator, Thermostatic Expansion Valve and Self-Sealing Couplings .................................. 40,41

Temperature Control Switch Probe Routing ............................................................................... 42

Fittings Required for Testing TEV Valve .................................................................................... 43

Testing and Adjusting TEV Valve ., ............................................................................................. 44

TEV Valve Cleaning and Inspection ............................................................................................ 45

Servicing the Cab Blower Assembly Blower Housing Removal ............................ ........... ............................................................ 46-48

Blower Housing and Motor Disassembly ............................................................................ 49,50

Blower Housing and Motor Assembly ................................................................................ 50-53

Blower Housing Installation ................................... ................................................. ........... 54-57

Sealing the Cab Plenum ..................................................................................... : .... '" ............... 58

Cab Roof Panel and Air Valve ................................................................................................... 59

Cleaning the Cab Air Filter Element .......................................................................................... 60

Oil Level Dipstick Template ....................................................................................................... 61

-... ~ ......


9035-9

ROTARY TYPE COMPRESSOR OIL LEVEL CHECK

Generally the compressor oil level should be checked only when there is evidence of a major loss of system oil such as might be caused by:

1 . A broken refrigerant hose. 2. A severe refrigerant leak. 3. A badly leaking compressor seal. 4. Damage to system components.

There are two ways of checking the compressor oil -level; vehicle check-compressor connected to AIC system, and bench check-compressor removed from vehicle.

VEHICLE CHECK 1. Run the system for 10 minutes at 2000 En

gine RPM with controls set for maximum cooling and high blower speed.

2. Turn off engine and momentarily crack open compressor drain plug, letting a slight amount of oil to drain out.

3. Retighten compressor drain plug.

4. Then, again slightly crack open the drain plug. A. If oil appears the second time, the com

pressor has an adequate supply of oil. B. If oil does not appear the second time, it

will be necessary to remove compressor from the vehicle and perform bench check.

NOTE: The oil may appear foamy. This is considered normal.

BENCH CHECK 1. COMPRESSOR OPERATIONAL - Before re

moving compressor from vehicle, run the system for 10 minutes at 1500 Engine RPM with controls set for maximum cooling and high blower speed.

Turn off engine and remove compressor from vehicle, refer to Section 9025 for discharging the system.

Place compressor in a horizontal position, with the drain plug downward. Remove drain plug and drain the oil into a clean container, measure and discard the oil.

A. If the amount of oil drained was 4 ozs. or more, add the same amount of new refrigerant oil (525 viscosity).

B. If the amount of oil drained was less than 4 ozs., add 6 ozs. of new refrigerant oil (525 viscosity).

IMPORT ANT: The compressor manufacture recommends when adding or changing oil, use only Delco #15-117 or an equivalent 525 viscosity oil.

BENCH CHECK (Cont'd)

2. COMPRESSOR NOT OPERATIONAL - Remove compressor from vehicle, refer to Section 9025 for discharging the system.

Place compressor in a horizontal position, with the drain plug downward. Remove drain plug and drain the oil into a clean container, measure and discard the oil.

A. If the amount of oil drained was 2 ozs. or more, add the same amount of new refrigerant oil (525 viscosity).

B. If the amount of oil drained was less than 2 ozs., add 6 OZS. of new refrigerant 0,;,

(525 viscosity).

NOTE: If an overhauled or field repair€I,: compressor is being installed, add one add tional ounce of new refrigerant oil to the (.~

mounts specified above. If a new compressor I';

being installed, add 6 ozs. of new refrigerarn oil.

If the drained oil contained chips or other fO! eign material, replace the receiver-drier and flush or ieplace all system parts. Add additionai oil in the following amounts for any system components being replaced.

Evaporator ................................ 3 fluid oz Condenser ................................. 1 fluid oz, Receiver-Drier ................. .......... 1 fluid oz.


Section

111

HYDRAULIC TESTING

(Power Shift - Dual Remotes - PTO Clutch)

TABLE OF CONTENTS

Testing and Adjusting Power Shift Retard Valves ................................................................ 111-2

Power Shift Pressure Checks ................................................................................................. 111-4

C-l,C-2,C-4 Clutch Modulation ................................................................................................ 111-4

Checking Relief Valve (Flow Divider and PTO Control Valve) ............................................. 111-4

Power Shift Clutch Pressures .................................................................. : ............................. 111-6

Power Shift Clutch Isolation .................................................................................................. 111-7

Fittings Required for checking 16 GPM Pump Section ......................................................... 111-8

Hook-up for testing 16 GPM Pump Section ........................................................................... 111-9 16 GPM Pump Tests ........................................................................................................... 111-9 PTO and Power Shift Clutch Pressure Regulator Tests ...................................................... 111-9

Power Shift, Remote and PTO Clutch Leakage Tests .......................................................... 111-10

Remote and PTO Circuit Leakage Tests - Mechanical Shift ................................................ 11i -12

Power Shift, Dual Remotes, PTO, Check Sheet ................................................................... 111-15


A Tenneco Company


Seclion

141

DRAFT-O-MATIC HYDRAULIC SYSTEM

HOW IT WORKS

TABLE OF CONTENTS

Introduction. . . . . . . . .

Operation of the Draft-O-Matic Control Sensing Linkage Increase in implement load . . . Decrease in implement load .. . . . . .

Oil Flow - Lifting Position .......... .

Oil Flow - Holding Position .

Oil Flow - Lowering Position

Oil Flow - Floating Position. . . . . . . ..

J I Case Rae 9-79042 A Tenneco Company

. . 141-2

. . 141-4 . 141-6

141-8

141-10

141-12

141-14

PRINTED IN U.S.A.


Section

151 HOW IT WORKS

POWER STEERING AND POWER "BRAKES

TABLE OF CONTENTS

Steering and Power Brake Systems (Introduction) 151-2

Power Brake Valve Assembly 151-4

OIL FLOWS

Engine Running - No Steering - Brakes Not Applied 151-6

Right Brake Applied - No Steering - Engine Not Running 151-8

Left Brake Applied - No Steering - Engine Running ..... 151-10

Left Turn - Brakes Not Applied - Engine Running . . ." • 151-12

Right Turn - Brakes Not Applied - Engine Not Running 151-14

Rae. Form 9-79162


Section

161

POWER SHIFT

HOW IT WORKS

TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161-2 Power Shift (1) Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 161-4 Power Shift (2) Intermediate . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 161-6 Power Shift (3) High ..................................... 161-8 Power Shift (R) Reverse ................................... 161-10 Power Shift - Inching Pedal Fully Depressed ..................... 161-12 Power Shift- Inching - Inching Pedal Partially Depressed ...•........ 161-12

Specifications

Power Shift Input to output ratio

(1) Low 1.67 to 1

(2) Intermediate 1.25 to 1

(3) High 1 to 1

(R) Reverse 1 to 1

Power Shift Clutches . . . . . . . . . . . . . . . . . . . . . .. Operating oil pressure 180 to 200 PSI Power Shift Lubrication . . . . . . . . . . . . . . . . . . . . . . Operating oil pressure 55 to 65 PSI

Rae. Form 9-79232


Section

19010

AIR CONDITIONING

THEORY OF OPERATION

TABLE OF CONTENTS

Specific a tions ............................................................................................... :.............................. . 2

Safety Precautions ...................................................................................................................... 3

Simplified Explanation of Air Conditioning ................................................................................. 4

Basic Principles of Air Conditioning (Refrigeration) .................................................................. 6

Temperature-Pressure Relation Chart (For Refrigerant 12) ...................................................... 11

Basic Components of Our Refrigeration System ........................................................................ 12

Compressor Drive Clutch ..................................................................................... ~ .... , ................ 14

Compressor Lubrication ............................................................................................................. 14

Stabilized Cab Air Temperature ................................................................................................ 16 High Cab Air Temperature ........................................................................................................ 18

Low Cab Air Temperature ......................................................................................................... 20


A Tenneco Company



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