aircraft maintenance & support equipment owner’s … · 2019-08-20 · date: march 30, 2017...

Date: March 30, 2017

OWNER’S MANUAL FOR MALABAR MODEL

AIRCRAFT MAINTENANCE & SUPPORT EQUIPMENT

50P9AR

TWO STAGE HYDRAULIC AVIATION AUTO-RETRACT

AXLE JACK

S/N 16186 AND UP

* GENERAL DESCRIPTION * OPERATION * SERVICE * PARTS BREAKDOWN

For Service & Spare Parts, Please Contact: Malabar International

220 W. Los Angeles Avenue Simi Valley, California 93065 Phone: (805) 581-0116 Fax: (805) 584-1624 E-mail: [email protected] Web site: http://www.malabar.com

OVER 65 YEARS OF SERVICE & EXPERIENCE

© 2002 Malabar International. All rights reserved. Permission to reproduce all or part of this material must be obtained from Malabar International.

READ AND SAVE

THIS

INSTRUCTION MANUAL

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GENERAL DESCRIPTION, OPERATION, SERVICE AND PARTS BREAKDOWN

MALABAR MODEL 50P9AR TWO STAGE HYDRAULIC AVIATION

AUTO-RETRACT AXLE JACK

CAUTION: AIRCRAFT MANUFACTURER’S SPECIFICATIONS AND INSTRUC-TIONS MUST BE FOLLOWED. IN THE EVENT OF CONTRADICTION BETWEEN AIRCRAFT MANUFACTURER’S SPECIFICATIONS AND MALABAR’S, AIRCRAFT MANUFACTURER’S SPECIFICATIONS WILL PREVAIL.

SPECIFICATIONS: Rated Capacity-------------------------------------------------------------------------------- 50 tons (45.4 m. tons) Side Load--------------------------------------------------------------------------------------- 15% of vertical load Low Height ------------------------------------------------------------------------------------- 9.13 inches (232 mm) Hydraulic Lift----------------------------------------------------------------------------------- 9.75 inches (248 mm) Extension Screw------------------------------------------------------------------------------ 4.13 inches (105 mm) Total Extended Height ---------------------------------------------------------------------- 23 inches (584 mm) Oil Pressure at Rated Capacity ----------------------------------------------------------- 6660 psig (468 kg/sq cm) Safety Pop-off Valve set at ---------------------------------------------------------------- 53 tons (48.1 m. tons) Proof Load ------------------------------------------------------------------------------------- 75 tons (68.0 m. tons) Floor Loading at Rated Capacity --------------------------------------------------------- 830 psi (58 kg/sq cm) Reservoir Capacity--------------------------------------------------------------------------- 5.5 gallons (20.8 liters) Hydraulic Fluid -------------------------------------------------------------------------------- MIL-H-5606 or equivalent Maximum Towing Speed ------------------------------------------------------------------- 5 mph (8 km/h) Approximate Jack Net Weight ------------------------------------------------------------ 450 lbs (204 kg)

GENERAL DESCRIPTION: The Malabar Auto-Retract Axle Jack Model 50P9AR is a 50 ton capacity two stage telescoping hydraulic jack designed primarily for use in jacking the main and/or nose landing gear of various aircraft. The hydraulic cylinder retracts automatically after each use. Simple and easy single valve control for aircraft raising and lowering. The jack consists of a two stage cylinder assembly, frame/reservoir assembly, valve block assembly, hand pump assembly, control console and the following optional equipment: * Air pump * Load gauge * Lubricator * Rain hat The jack is mounted on two swivel casters at the rear and a retractable wheel at the front to provide portability. A tow handle readily connects to tow vehicle for ease of transport. Raising or lowering the tow handle retracts or extends the front wheel through a linkage, thus controlling ground clearance for towing. The jack is rated at 5 mph (8 km/h) towing speed. Excessive speed may cause excessive wear and/or damage to the jack.

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PROTECTION DEVICES: 1. A safety pop-off valve is incorporated in the jack (located in the valve block) to prevent lifting of loads

in excess of 53 tons (48.1 m. tons). 2. The extension screw has a positive stop to prevent it from being extended beyond its safe thread

engagement. 3. An optional load gauge can be installed in order to monitor the approximate load being raised. 4. An accumulator relief valve is incorporated in the accumulator hydraulic system to prevent over

pressurizing of this system.

PREPARATION FOR USE: 1. The accumulator system does not require any preparation for use. 2. The jack is shipped without hydraulic fluid in the reservoir. Do not operate air or hand pumps until

reservoir is filled will hydraulic fluid MIL-H-5606 or approved equivalent. Remove filler cap and fill reservoir to mark on dipstick (reservoir capacity is approximately 5.5 gallons/20.8 liters). Plungers must be fully retracted before filling reservoir. Replace filler cap.

3. Open release valve and operate hand pumps a few strokes to bleed all air trapped under hand pumps.

4. Close release valve and operate hand pump to raise plungers approximately 1 inch. 5. Open release valve to retract plungers fully to bleed all air trapped under jack plungers. Close release

valve. 6. Loosen bleed plug to prime air pump. Slowly operate air pump to bleed trapped air and re-tighten

bleed plug.

PRE-OPERATION INSPECTION: Each time the jack is to be used, inspect the following: 1. Check jack structure for rigidity. Make sure all bolts are tightened. 2. Check hydraulic line connections for leaks. Tighten as required. 3. Check for hydraulic fluid leaks around the cylinder assembly, reservoir, air pump and hand pumps. 4. Check hand pumps for proper operation. 5. Check caster wheels for proper operation. 6. Check reservoir fluid level with jack plungers fully retracted. 7. Check tow handle let-down feature for proper operation.

OPERATION: 1. Position the jack under the appropriate jacking pad of the aircraft. Positioning of tow handle in either

full-up or full-down position will lower jack for minimum ground clearance.

CAUTION: DO NOT EXTEND EXTENSION SCREW AGAINST AIRCRAFT JACK PAD WITH THE PLUNGERS FULLY RETRACTED.

2. Raise the extension screw by turning counterclockwise until the ship adapter is 1/2" to 1" from aircraft

jacking pad or as far as the screw will travel (4.13 inches maximum). 3. Close the release valve located on control console.

CAUTION: ON JACK EQUIPPED WITH AIR PUMP, AIR RELIEF VALVE MUST BE INSTALLED AT ALL TIMES. IF AIR RELIEF VALVE IS REMOVED, IT IS POSSIBLE TO OVER PRESSURIZE THE PNEUMATIC SYSTEM WHICH COULD CAUSE EQUIPMENT FAILURE AND POSSIBLE BODILY INJURY.

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4. On jack equipped with air pump, connect air supply (90-110 psig) to the 3/8 NPT air inlet located near the air valve on the control console (A minimum of 28 scfm is required for the air pump). Air relief valve must be properly installed. Do not attempt to remove air relief valve.

5. The jack is equipped with two hand pumps. One with 3/4 inch diameter pump plunger for rapid raising of jack plungers under low pressure and one with 7/16 inch diameter pump plunger for high pressure operation. The hand pumps can be operated by placing pump handle over the end of the pump fulcrum and operating either the low or high pressure hand pump.

6. Operate air valve or either hand pump to raise plungers until the ship adapter contacts the jacking pad. Note: A small amount of fluid wetting is normal on manual hand pump plungers. Periodically clean to remove accumulated grease or foreign material.

7. Insure ship adapter and jacking pad are correctly mated. 8. To raise the load:

a. Operate the air valve or either hand pump as required. b. Do not lift a load greater than the rated capacity of 50 tons (45.4 m. tons). The approximate load

being lifted can be read in tons on the load gauge. Read load on lower stage scale when only outer plunger is extended. Read load on upper stage scale when inner plunger is extended. Fluid pressure in psig may be read on outer scale for gauge calibration.

9. To lower the load: a. Slowly open the release valve to lower the load. The speed of lowering is controlled by the amount

the release valve is open. Note: It is important to lower the load slowly. Plungers will retract fully, automatically.

10. Lower extension screw. Close release valve. Cover jack when not in use.

SERVICING: Servicing the jack consists primarily of the following: 1. When in use, the reservoir should be kept at the proper hydraulic fluid level. Check with plungers fully

retracted. 2. Grease casters and wheel as required. 3. Lubricate hand pump pivot pins and tow handle linkage. 4. On jack equipped with pump lubricator, fill lubricator with SAE #10 oil. 5. If the jack has been put into storage or has not been used, the plungers must be fully extended and

retracted every 90 days to exercise the seals. A portion of the lift should be operated by the air pump and a portion by the hand pumps.

6. Procedure to verify or recharge GN2 pressure in accumulator (Note: Under normal operating conditions, the accumulator system should not require servicing for 3 years):

a. Open release valve on control console. b. Open accumulator shutoff valve located underneath the frame. c. Attach accumulator test gauge assembly, Malabar tool P/N 872845 (0-300 psig) to accumulator

charging valve located on top of the accumulator. Verify test gauge reads 160 ± 5 psig. If necessary, charge accumulator using GN2 until test gauge reads 160 ± 5 psig.

d. Close accumulator shutoff valve. e. Close release valve on control console. f. Disconnect Malabar tool P/N 872845 from accumulator. g. Immediately proceed to step 7 below.

7. Procedure to recharge hydraulic fluid pressure in accumulator: a. Open release valve on control console. b. Open accumulator shutoff valve located underneath the frame. c. Remove cap from test port located behind control console. d. Attach hose and test gauge assembly, Malabar tool P/N 872839 (0-600 psig) to test port. e. Close release valve on control panel. f. Operate air pump or either hand pump to extend plungers to near full extended height. Now slowly

operate hand pump only until plungers just reach full extension. At this point pressure will build up rapidly so proceed cautiously. Slowly operate hand pump until test gauge reads 335 ± 10 psig.

CAUTION: RAPID PUMPING AT THIS TIME WILL OVER PRESSURIZE AND DAMAGE THE TEST GAUGE.

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g. Firmly close accumulator shutoff valve. Verify that the test gauge reads 335 ± 10 psig just prior to the valve fully seating.

h. Open release valve on the control console. i. Remove hose and test gauge assembly tool P/N 872839. j. Replace cap on test port.

8. Procedure to verify or adjust accumulator relief valve:

CAUTION: THE ACCUMULATOR RELIEF VALVE, LOCATED UNDER THE RESERVOIR, SHOULD NOT BE DISTURBED UNLESS ABSOLUTELY NECESSARY. THE RELIEF VALVE IS SET AT THE FACTORY TO BY-PASS HYDRAULIC FLUID TO ATMOSPHERE AT 550 ± 25 PSIG.

a. Open release valve on control console. b. Open accumulator shutoff valve located underneath the frame. c. Remove cap from test port located behind the control console. d. Attach hose and test gauge assembly tool, Malabar P/N 872839 (0-600 psig) to test port. e. Remove accumulator relief valve deflector cap. f. Close release valve on control panel. g. Operate air pump or either hand pump to extend plungers to near full extended height. Now slowly

operate hand pump only until plungers just reach full extension. At this point pressure will build up rapidly, so proceed cautiously. Slowly operate hand pump and verify accumulator relief valve by-passes hydraulic fluid to atmosphere at 550 ± 25 psig.

CAUTION: RAPID PUMPING AT THIS TIME WILL OVER PRESSURIZE AND DAMAGE THE TEST GAUGE.

h. If adjustment is required, insert a standard 5/32 inch hex key wrench into the locking screw. i. Break loose locking screw counterclockwise until the hex key wrench slides into the adjusting

screw. j. Turn both screws together to the desired by-pass pressure of 550 ± 25 psig. (Clockwise increases

by-pass pressure). k. Retract hex key wrench into the locking screw. l. Lock locking screw against adjusting screw by turning clockwise. m. Replace accumulator relief valve deflector cap. n. Lower pressure reading to 335 ± 10 psig by opening release valve. 0. Firmly close accumulator shutoff valve. Verify that the test gauge reads 335 ± 10 psig just prior to

the valve fully seating. p. Open release valve on control console. q. Remove hose and test gauge assembly tool P/N 872839. r. Replace cap on test port.

DISASSEMBLY INSPECTION:

CAUTION: THE SAFETY POP-OFF VALVE, LOCATED IN THE VALVE BLOCK, SHOULD NOT BE REMOVED UNLESS ABSOLUTELY NECESSARY. THE VALVE IS SET AND SEALED AT THE FACTORY TO BY-PASS HYDRAULIC FLUID BACK TO THE RESERVOIR AT 4-6% ABOVE THE RATED CAPACITY OF 50 TONS. IF ADJUSTMENT IS REQUIRED, SEE PROCEDURE UNDER TESTING (SEE SHEET 7).

When necessary to disassemble the jack, drain all hydraulic fluid from reservoir and carefully inspect the following: 1. Inspect interior walls of jack base/cylinder and hand pump cylinders for smoothness and freedom

from rust, nicks, scratches and excessive wear. 2. Inspect exterior walls of jack plungers for smoothness and freedom of rust, pits and excessive wear. 3. Check extension screw, cylinder, plungers, etc., for corrosion, wear and condition of threads.

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4. Verify that the extension screw has a positive stop to prevent it from being extended beyond its safe thread engagement.

5. Inspect packings, seals, gaskets and wipers in the cylinder assembly and hand pumps for cuts, scratches, deterioration and distortion.

6. Inspect stop rings for excessive scoring and/or wear. 7. Check hand pump oil screens by removing valve block and verifying cleanliness. 8. Check air pump oil screen located inside reservoir by removing reservoir cover and verifying

cleanliness. 9. Inspect valves and valve seats in the valve block for scratches, dents and proper seating of the balls. 10. Inspect all pivot pins for wear, cracks, pits or evidence of damage or pending damage. 11. Inspect all areas for excessive dirt, oil, dust and chips.

OVERHAUL INSTRUCTIONS: No definite time schedule can be established for the overhaul of the jack for replacement of the various moving parts. The number of times the jack is raised and lowered and the amount of load raised at each operation materially affect the life of the working parts. Do not overload the jack. Overloading is dangerous, will hasten the need for overhaul and may damage the jack. During overhaul, replace all parts that do not pass disassembly inspection requirements. Regardless of apparent condition, replace all parts marked with (♦) in the parts breakdown. A repair parts kit (P/N 50P9ARPK) which contains all of the parts marked with (♦) is available and recommended to keep on hand at your facility 1. To disassemble cylinder assembly:

a. Open release valve located on control console. b. Open accumulator shutoff valve located underneath the frame. c. Remove outer stop ring using spanner wrench (P/N 83220) and remove outer face O-ring. d. The inner plunger, outer plunger, and extension screw may now be carefully removed as a unit

using extension screw lifting tool (P/N 882284). Do not cut or damage any of the seals. e. Remove inner stop ring using spanner wrench (P/N 72513) and remove inner face O-ring. f. Remove inner plunger and extension screw from outer plunger carefully. Do not cut or damage

any of the seals. g. Remove inner plunger diaphragm retaining ring and diaphragm from bottom of inner plunger. h. Remove extension screw roll pins and screw extension screw down through inner plunger.

2. Should it be necessary to remove base/cylinder, proceed as follows: a. Unscrew connector nut from connector fitting located at top portion of base/cylinder. b. Unscrew elbow nut from elbow fitting located at lower portion of base/cylinder. c. Unscrew 4 bolts from side of base/cylinder and remove base/cylinder from frame.

3. Replace all worn or damaged seals. No special tools are required. If replacement of diaphragm seal (P/N 872822) is necessary, follow the installation diagram on sheet 6. Lubricate all seals and cylinder walls with hydraulic fluid MIL-H-5606 or approved equivalent.

4. When necessary to disassemble the jack: a. Replace all defective parts. b. Clean all metal parts with clean solvent and dry with compressed air. c. Lubricate all threads. Use teflon tape carefully on all pipe threads. Remove excess tape because it

can clog valves and passages. d. If ball valves, located in valve block, do not seat properly, they may be reseated by tapping the ball

into the valve seat with a brass rod cupped at one end.

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SPECIAL INSTALLATIONS:

CAUTION: THIS IS A TEFLON JACKETED SEAL WITH A THIN STAINLESS STEEL ENERGIZER SPRING. HANDLE CAREFULLY SO YOU DO NOT DAMAGE THE SEAL LIPS, JACKET AND/OR SPRING. THE SEAL MUST BE INSTALLED AS SHOWN BELOW. REMEMBER THAT THE LIPS OF THE SEAL ARE TOWARDS THE PRESSURE. RECHECK BEFORE PROCEEDING.

Installation diagram for diaphragm seal (P/N 872822)

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TESTING: Place jack in a load indicating test fixture. Make sure the test adapter is 3/4 inch male spherical radius. Operate hand pump to extend outer plunger fully and inner plunger partially. Make sure ship adapter and test adapter are correctly mated. Load test the jack at rated capacity of 50 tons. If the jack fails to operate properly, check for trouble as indicated in the Trouble Shooting Chart (see sheet 10). With plungers extended and supporting the capacity load, allow the jack to stand for 10 minutes. Any excess settling indicates leakage in the hand pump, check valves or jack packing seals. Check for hydraulic fluid leaks and replace all defective parts. If adjustment is required for the safety pop-off valve, perform the following procedure: 1. Cut, remove and discard lead & wire seal (figure 4, item 39). 2. Remove plug (figure 4, item 35). Close release valve (figure 1C, item 31). 3. Place jack in a load indicating test fixture. Make sure the test adapter is 3/4 inch male spherical

radius. Operate hand pump to extend plungers against the test adapter. Make sure ship adapter and test adapter are correctly mated.

4. While operating the hand pump, adjust set screw (figure 4, item 29) until the safety pop-off valve by-passes hydraulic fluid back to the reservoir at 52.0 to 53.0 tons.

5. Replace plug (figure 4, item 35). Once more operate hand pump to verify correct setting. 6. Install new lead & wire seal (figure 4, item 39). 7. Open release valve to relieve pressure.

SPECIAL TOOLS: The following special tools are necessary to disassemble/reassemble the cylinder assembly and adjust the accumulator system. These tools may be purchased upon request: Part No. Description Qty 872840 Spanner wrench, inner stop ring ------------------------------------------------------------------ 1 872841 Spanner wrench, outer stop ring ------------------------------------------------------------------ 1 882284 Lifting tool, extension screw------------------------------------------------------------------------ 1 872845 Accumulator test gauge assembly, 0-300 psig ------------------------------------------------ 1 872839 Hose and test gauge assembly, 0-600 psig---------------------------------------------------- 1

RECOMMENDED SPARE PARTS: The following spare parts are recommended and available upon request. Part No. Description Qty 50P9ARPK Repair parts kit----------------------------------------------------------------------------------------- 1 492-012 Swivel Caster ------------------------------------------------------------------------------------------ 2 492-002 Wheel ---------------------------------------------------------------------------------------------------- 1 86399F Valve block and hand pump assembly ---------------------------------------------------------- 1 55001 Fulcrum-------------------------------------------------------------------------------------------------- 2 886659 Plunger, 7/16 dia -------------------------------------------------------------------------------------- 1 886658 Body, 7/16 dia------------------------------------------------------------------------------------------ 1 886657 Plunger, 13/16 dia ------------------------------------------------------------------------------------ 1 886656 Body, 13/16 dia ---------------------------------------------------------------------------------------- 1 86376 Pump handle ------------------------------------------------------------------------------------------- 1 86392 Bumper -------------------------------------------------------------------------------------------------- 1 52526 Spring ---------------------------------------------------------------------------------------------------- 1 86350 Yoke ------------------------------------------------------------------------------------------------------ 1 86351 Yoke pin ------------------------------------------------------------------------------------------------- 1 86371 Cushion tube ------------------------------------------------------------------------------------------- 1 86339 Breather cap & dipstick ------------------------------------------------------------------------------ 1 85416 Release valve ------------------------------------------------------------------------------------------ 1 424-004 Bypass valve ------------------------------------------------------------------------------------------- 1

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86367 Cross check valve ------------------------------------------------------------------------------------ 1 424-005 Drain cock valve--------------------------------------------------------------------------------------- 1 423-037 Relief valve --------------------------------------------------------------------------------------------- 1 423-038 Deflector cap ------------------------------------------------------------------------------------------- 1 86320A Ship adapter-------------------------------------------------------------------------------------------- 1 872809 Inner stop ring------------------------------------------------------------------------------------------ 1 872808 Outer stop ring ----------------------------------------------------------------------------------------- 1 86328A Velocity fuse-------------------------------------------------------------------------------------------- 1 86329 Hydraulic hose----------------------------------------------------------------------------------------- 1 891511 Hydraulic hose----------------------------------------------------------------------------------------- 1 55991-11 Placard, tonnage, 50 ton ---------------------------------------------------------------------------- 1 872835 Placard, instruction ----------------------------------------------------------------------------------- 1 86396 Placard, release valve ------------------------------------------------------------------------------- 1 882195 Placard, aircraft---------------------------------------------------------------------------------------- 1 55998 Sticker, Malabar --------------------------------------------------------------------------------------- 1 55994 Sticker, fluid -------------------------------------------------------------------------------------------- 1 75940 Sticker, towing ----------------------------------------------------------------------------------------- 1 * 86387 Air pump------------------------------------------------------------------------------------------------- 1 * 441-022 Seal kit, air pump-------------------------------------------------------------------------------------- 1 * 421-005 Air valve ------------------------------------------------------------------------------------------------- 1 * 425-001 Air relief valve ------------------------------------------------------------------------------------------ 1 * 472-001 Muffler---------------------------------------------------------------------------------------------------- 1 * 481-002 Oil screen ----------------------------------------------------------------------------------------------- 1 * 872825 Load gauge--------------------------------------------------------------------------------------------- 1 * 880437 Hydraulic pressure hose ---------------------------------------------------------------------------- 1 * 471-002 Lubricator ----------------------------------------------------------------------------------------------- 1 * Optional equipment – These parts required only when supplied with jack

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PNEUMATIC / HYDRAULIC DIAGRAM

RESERVOIR

- AIR RELIEF VALVE- AIR VALVE- AIR PUMP- MUFFLER- VALVE BLOCK- HAND PUMP- SAFETY POP-OFF VALVE- OIL SCREEN- CROSS CHECK VALVE

KLMNPRSTU

ABCDEFGHJ

H

E

H

F

L

M

A

C

D

B

AIR INLET

R

G

- HYDRAULIC HOSE- LUBRICATOR- CYLINDER ASSEMBLY- LOAD GAUGE- TEST PORT- RELEASE VALVE- ACCUMMLATOR RELIEF VALVE- ACCUMULATOR- ACCUMULATOR SHUTOFF VALVE

H

F

(VALVE ONLY TO BE OPENEDDURING ACCUMULATORSERVICING)

J

S

K

U

T

N

P

PROBABLE CAUSERelease valve open. (Oilpassing back into reservoir.)Intake valve open. (Oil passingback into reservoir.)Discharge valve open. (Oilpassing back into pumpchamber.)Sticking intake valve.

Clogged screen.Lack of oil. Air under plunger.

Lack of oil.Sticking intake valve.

High pressure leaks. (At pumpor release valve.)Leaky release valve.

Leaky discharge valve.

Leaky release valve.Defective "O" ring and back upring.Damaged release valve.

Bent plunger.Air under plunger.

Air in pump chamber.

Sticking intake valve.

Clogged screen.Leaky intake valve.

Sticking intake valve.

Clogged screen.

TROUBLEJack will not raise.

Jack will not raise to fullheight.

Jack will not raise capacityload.

Jack raises and falls duringeach stroke.Jack will not hold up load.

Jack will not lower the load.

Jack will not closecompletely.

Handle stroke only partlyeffective.

Handle raises without effort.

Handle snaps back.

TROUBLE SHOOTING CHARTREMEDY

Close valve firmly.

Pump rapidly to flush dirt off.

Pump rapidly to flush dirt off.

Remove pump from jack base.Unscrew valve block. Clean orreplace valve.Remove and clean.Refill. Check for leaks. Bleedair out by opening releasevalve. Pump rapidly a fewtimes and close release valve.Refill, check for leaks.Remove pump from jack base.Unscrew valve block. Clean orreplace ball valves. Re-tightenor repair.Reseat valve.

Reseat valve and clean valveblock.Tighten or replace ball valve orpacking.Reseat valve.Remove plunger and replace"O" ring and back up ring.Remove and replace parts asneeded.Replace.Bleed air out. Open releasevalve and pump rapidly severaltimes. Close valve.Open release valve and pumprapidly several times. Closevalve.Remove pump and clean valveblock.Remove and clean.Remove pump and clean valveblock.Open release valve. Pumprapidly several times. closevalve.Remove and clean.

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- 11 -

5

2♦

75

79

1

2

6♦

27

♦ 2

8

6

0

61

5

4♦

75

41

63

A

(SE

E

FIG

1

C)

VIE

W B

-B

15

62

16

19

65

39

45

47

5

59

62

42

14

94

92

93

FIGURE 1A

29

B B

10

3

9 8

72

76

6 738 51

25

33

43

55

99

4

APPR

OX

MA

LAB

AR

FU

LL

APPR

OVE

D A

LTER

NA

TE

FILL

W

ITH

M

IL-H

-56

06

O

R

U.S

. GA

LLO

NS

SIM

I VA

LLEY

, C

A 9

30

65

IMPER

IAL

GA

LLO

NS

LIT

ERS

♦ P

AR

T

OF

R

EP

AIR

P

AR

TS

K

IT

A

(SE

E

FIG

1

C)

♦ 2

7

(SP

RIN

G)

26

(C

RO

SS

C

HE

CK

VA

LV

E

BL

OC

K)

♦ 2

8

(3/8

" Ø

B

AL

L)

20

17

MODEL 50P9AR 50 TON AUTO RETRACT AXLE JACK

354044

BLEED


FIGURE 1B

- 12 -

1211

6769

6771

73

779091

86396

RELEASE VALVE– OPEN SLOWLY –

NOTE: IF RELEASE VALVE ISOPENED TOO FAST – SAFETY FUSE

WILL CLOSE – TO RESET FUSE –CLOSE RELEASE VALVE AND

OPERATE PUMP.

13676848

63

5 M. P. H.75940

4163

MAX TOWING SPEED

74

6770

78

184163

232

374547


- 13 -

FIGURE 1C

SECTION A-A4

64

36414547

57

51

53

B

50

5149

53

56

22

3446

58VIEW B-B

58

5589

51

3031

24

66

51

53

21

23

53

5153

♦ PART OF REPAIR PARTS KIT

B

NOTE : THESE PARTS ARE USED ONLY IN THE ABSENCE OF AN AIR PUMP

FIGURE 1D

- 14 -


CROSSCHECKVALVE

84

84

85

86

88

TOP OFFRAME

87

84

RESERVOIR WALL

INSIDE RESERVOIR

OUTSIDE RESERVOIR

81


80

♦ 83 82

CYLINDER ASSEMBLYVALVE BLOCK & HAND PUMPFRAME AND RESERVOIRSWIVEL CASTERWHEELRESERVOIR COVER GASKETRESERVOIR COVERBRIDGEBREATHER CAP & DIPSTICKTOW HANDLETOW HANDLE BOLTBUMPERLINKRODSPRING PUSHERSPRINGYOKEYOKE PINCUSHION TUBEYOKE BEARING PADACCUMULATORACCUMULATOR STRAPACCUMULATOR MOUNT BRKTRELEASE VALVEBYPASS VALVECROSS CHECK VALVESPRINGSTEEL BALL, 3/8 DIADRAINCOCK VALVERELIEF VALVEDEFLECTOR CAPPUMP HANDLEHHCS, 5/16-18 x 3/4 LGHHCS, 5/16-18 x 1 1/4 LGHHCS, 3/8-16 x 1" LGHHCS, 1/2-13 x 1 1/4 LGHHCS, 1/2-13 x 1 3/4 LGHHCS, 1/2-13 x 3" LGHHCS, 1/2-13 x 3 1/2 LGFLAT WASHER, 3/8 SAEFLAT WASHER, 1/2 SAEFLAT WASHER, 7/8 SAE THINSPLIT LOCKWASHER, 5/16SPLIT LOCKWASHER, 3/8SPLIT LOCKWASHER, 1/2HEX LOCKNUT, 5/16-18HEX NUT, 1/2-13HEX NUT, SLOTTED, 1/2-13NIPPLE, 1/4 NPTREDUCER, 1" MPT x 3/8 FPTTUBE, 3/8 OD x .065 W x 105"CONN., 3/8 37° x 3/8 SAECONN., 3/8 TUBE x 1/4 MPTELBOW, 3/8 37° x 3/8 SAEELBOW, 3/8 37° x 1/4 MPTELBOW, 3/8 TUBE x 3/8 MPTRUN TEE, 1/4 NPTBRANCH TEE, 3/8 T x 1/4 FPTBRANCH TEE, 3/8 37° x 1/4 MPT


NO. QTY PART NO. DESCRIPTION

- 15 -

60 1 729-01061 1 729-01662 2 371-00763 5 372-00264 1 390-02265 AR 491-04566 AR 491-04467 14 397-00568 1 55991-1169 1 87283570 1 8639671 1 88219572 1 5599473 1 5599874 1 7594075 2 MS28778-676 1 87283377 1 87282678 1 87284379 1 87282880 1 8636981 1 8633682 4 321-08383 4 365-00484 6 355-00485 1 717-00786 1 8636887 1 321-02988 1 321-12889 1 717-03290 1 8639191 3 MS51861-44C

92 1 89151193 1 8632994 1 491-059

1 1 8821992 1 86399F3 1 8728564 2 492-0125 1 492-0026 1 863707 1 863618 1 863789 1 86339

10 1 8635511 1 8541412 1 8639213 1 8635214 1 8635315 1 8635416 1 5252617 1 8635018 1 8635119 1 8637120 1 8631621 1 490-01122 4 87461623 1 87461524 1 8541625 1 424-00426 1 8636727 1 7936728 1 412-00129 1 424-00530 1 423-03731 1 423-03832 1 8637633 2 321-02934 4 321-08535 4 321-01136 8 321-01537 4 321-00638 1 321-03939 1 321-05540 4 362-00341 12 362-00542 1 362-01043 2 363-00244 4 363-00345 13 363-00446 4 355-00447 13 351-00348 1 357-00249 1 711-00350 1 714-00551 AR 732-01052 1 721-04053 5 721-00954 1 722-00355 1 722-00556 1 722-01057 1 713-01258 2 723-01859 1 723-001


SLEEVE, 3/8 - 37°NUT, 3/8 - 37°ROLL PIN, 5/16 x 1 1/2 LGCOTTER PIN, 3/32 x 1" LGLEAD AND WIRE SEALWIRE, .08 DIA x 12" LGSAFETY LOCK WIRESELF TAPPING SCREWPLACARD, TONNAGE, 50 TONPLACARD, INSTRUCTIONPLACARD, RELEASE VALVEPLACARD, AIRCRAFTSTICKER, FLUIDSTICKER, MALABARSTICKER TOWINGO-RINGAIR PUMP KITLOAD GAUGE KITLUBRICATOR KITRAIN HAT KITPUMP GASKETCOVERHHCS, 5/16-18 x 1" LGO-RING SEAL WASHERLOCKNUT, 5/16-18SOC HEAD PLUG, 3/8 NPTPUMP BRACKETHHCS, 5/16-18 x 3/4 LGHHCS, 5/16-18 x 1 3/4 LGHEX CAP, 3/8 37° (NO GAUGE)HOLE PLATE (NO GAUGE)SELF TAP SCR (NO GAUGE)HYDRAULIC HOSEHYDRAULIC HOSECABLE TIE

BASE / CYLINDEROUTER PLUNGERINNER PLUNGERINNER PLUNGER DIAPHRAGMEXTENSION SCREWSHIP ADAPTERROLL PIN, 1/4 x 2 1/4 LGROLL PIN, 1/8 x 1/4 LGINNER STOP RINGOUTER STOP RINGO-RING

FIGURE 2

- 16 -

882199 CYLINDER ASSEMBLY

12 1 55929-34513 1 55925-43214 1 55929-43215 1 55904-33116 1 87282217 1 87281818 1 55925-24919 1 87282120 1 55925-25921 1 86328A

NO. QTY PART NO. DESCRIPTIONNO. QTY PART NO. DESCRIPTION1 1 8821012 1 8821063 1 8821044 1 8728025 1 8821026 1 86320A7 1 371-0458 2 371-0429 1 87280910 1 87280811 1 55925-345


♦ 16

BACK-UP RINGO-RINGBACK-UP RINGRETAINING RINGDIAPHRAGM SEALINNER STP RNG RAD SEALO-RINGOUTER STP RNG RAD SEALO-RINGVELOCITY FUSE

4 15 ♦

11 ♦

14 ♦

13 ♦

21

♦ 20

♦ 19

10 65

3

2

12 ♦

17 ♦

1

18 ♦7 ♦

8 ♦

9

21 ♦

- 17 -

86399F VALVE BLOCK & HAND PUMP ASSEMBLY

29

FIGURE 3

31

♦ 1335

23

8

♦ 22

19

20

♦ 28

♦ 36

♦ 22

34

14♦ 26

♦ 22

♦ 24

25

25

32

27

♦ 15

33

12 ♦

26 ♦

24 ♦

22 ♦

33

30 ♦

♦ 9

7

16 ♦

18♦ 17

20

9 ♦

19

10 ♦

11 ♦

♦ 17

1

♦ 17

♦ 17

16 ♦

6 ♦

4 ♦

4 ♦

3

♦ 22

16 ♦

♦ 21

♦ 5

18


16 ♦

216 ♦

♦ 17

1

- 18 -

86399F VALVE BLOCK & HAND PUMP ASSEMBLY

FULCRUMPLUNGER, 7/16 DIABODY, 7/16 DIABACK-UP RINGO-RINGWIPERPLUNGER, 13/16 DIABODY, 13/16 DIABACK-UP RINGO-RINGWIPERO-RINGLEAD & WIRE SEALCONNECTOR, 3/8 T x 3/8 SAEO-RINGFLAT HEAD PIN, 5/16 DIABOW TIE COTTERLINKANCHORHEX JAM NUT, 5/8-18GASKETSTEEL BALL, 1/4 DIAPLUG, HEX HD, 1/4 MPTSPRINGPLUGO-RINGGUIDESPRINGSET SCREWOIL SCREENVALVE BLOCKPLUG, HEX SOC, 1/4 NPTPLUG, HEX SOC, 1/16 NPTSHCS, 3/8-24 x 3" LGPLUGO-RING

1 2 550012 1 8866593 1 8866584 2 55922-95 1 55925-1116 1 755-0187 1 8866578 1 8866569 2 55922-16

10 1 55925-21111 1 755-01912 3 55925-11313 1 390-02214 1 721-00515 1 MS28778-616 6 5500217 6 372-02818 2 5561519 2 5501120 2 352-00421 2 5502422 5 412-00423 1 717-03524 2 5562125 2 5562026 2 55925-90327 1 5515328 1 55154H29 1 5514830 2 5556831 1 8542532 1 717-00633 3 717-01034 3 323-00935 1 717-04636 1 55925-904


✳

- 19 -

FIGURE 4

872833 AIR PUMP KIT


AIR PUMPPUMP GASKETPUMP BRACKETAIR VALVE, 3/8 NPTAIR RELIEF VALVE, 1/4 NPTMUFFLER, 1/2 NPTOIL SCREEN, 1/2 NPTELBOW, 1/2 TUBE x 1/2 NPTELBOW, STREET, 1/2 NPTTEE, BRANCH, 3/8 NPTPLUG, HEX SOC, 3/8 NPTNIPPLE, CLOSE, 1/2 NPTNIPPLE, HEX CLOSE, 1/2 NPTREDUCER, 1/2 MPT x 3/8 MPT

1 1 863872 1 863693 1 863684 1 421-0055 1 425-0016 1 472-0017 1 481-0028 1 722-0139 1 712-00310 1 713-00511 1 717-00712 1 711-01313 1 711-00114 1 711-022

7

12


HHCS, 5/16-18 x 1" LGREDUCER, 3/8 MPT x 1/4 FPTPLACARD, AIRSELF TAP SCREW, #4 x 3/16 HHCS, 5/16-18 x 3/4 LGSHCS, LOCKING, 5/16-18 x 3/4 SPLIT LOCKWASHER, 5/16HEX LOCKNUT, 5/16-18ALLEN NUT, 5/16-18TUBE, 1/2 OD x .049 W x 21"REDUCER, 3/4 MPT x 1/2 FPTELBOW, 1/2 TUBE x 3/8 NPTWASHER, FLAT 5/16 SAEHHCS, 5/16-18 x 4 1/2 LG

15 1 321-08316 1 714-00917 1 8639718 2 397-00519 2 321-02920 4 323-06921 2 363-00222 1 355-00423 2 359-00124 AR 732-00125 1 714-00626 1 722-01227 4 362-00228 1 321-232

2 ♦ 14

20

6

13

25

2227

BLEEDPLUG

26

9

11

1921

✳

20

✳ PART OF ITEM NO. 1 (AIR PUMP)


10 16

23

4

5

1 15 28

3

27

27

27

CONTROL CONSOLE

24

86397

AIR VALVE

AIR INLET

125 PSI MAXIMUM

1718

8

TO TEE L

OCATED IN L

INE F

ROM

CROSS CHECK V

ALVE TO R

ELEASE VALVE

- 20 -

FIGURE 5

872826 LOAD GAUGE KIT


LOAD GAUGEISOLATION BUSHINGGAUGE SCREENHYDRAULIC PRESSURE HOSETEE, RUN, 1/4 FPT x 3/8 37°HEX CAP, 3/8 37°

1 1 8728252 3 8804353 1 863744 1 8804375 1 723-0466 1 717-032

7 10


SHCS, 10-32 x 1/2 LGSHCS (ASHCROFT GAUGE)SHCS (MARSH GAUGE)SPLIT LOCKWASHER, #10FLAT WASHER, #10 SAEREDUCER, 1/2 FPT x 1/4 MPT

7 3 323-0168 3 323-0759 3 323-073

10 6 363-00911 3 362-03112 1 714-001

3CONTROLCONSOLE

10

2

1

6

89

2

1110

5

4

12

11

10

89

- 21 -

AIR FLOW DIRECTION

NO. QTY PART NO. DESCRIPTIONLUBRICATORCONN, MALE, 1/2 T x 3/8 NPT

1 1 471-0022 2 721-025

FIGURE 6

872843 LUBRICATOR KIT

CONNECT TO AIR PUMP CONNECT TO AIR VALVE

22

1

5 2 321-0116 2 355-0017 1 759438 1 86392


7

872828 RAIN HAT KIT


FIGURE 7

1 1 863722 1 854223 1 321-0584 1 355-004

RAIN HATRAIN HAT BRACKETHHCS, 5/16-18 x 1 1/2 LGHEX LOCKNUT, 5/16-18

- 22 -

1

56

2

34

8

FRAME (REF)

BASE / CYLINDER ASSEMBLY (REF)

HHCS, 3/8-16 x 1" LGHEX LOCKNUT, 3/8-16STICKER, CLOSE COVERBUMPER

aircraft maintenance & support equipment owner’s … · 2019-08-20 · date: march 30, 2017...

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