VALTRA – VALMET MEGA MEZZO HI-TEC

WORKSHOP MANUAL

Service ManualTractors

Powertransmission

Brakesystem

Steering sys-tem and Frontaxle

Frame andWheels

Tools

Cab andShields

Hydraulics

Valtra Inc.44200 Suolahti, Finland

Groups 10---100

General

Engine

Electricalsystem

40

50

60

70

80

100

90

10

20

30

30. Electrical system

Tractor electrical systemAutocontrol II (662343---)Autocontrol 2.1 (668103---)Σ---powerAutocontrol 2.2 / 2.3 (J05133---)

AC power liftACD power liftACB power lift

AgrodataAgrodata---instrumentFieldMasterAgroline---instrument

34.

Autocontrol IV(6600E---8750E)

CareTel

31.

32.

33.

Autocontrol III(6600E, 8100E)

35.

36

Autocontrol 5 (H49112---)(HiTech)Autocontrol 5.2 (K41107---)

37

37

141

Model Code Page

31. Tractor electrical system 6000--8950 310 11. 6. 1999

1. 11. 1998

GeneralThe tractor electrical system, ACII, AC 2.1, AC 2.2 and SigmaPower are described in section 31. The tractor is also equippedwith an electro---hydraulically controlled power lift, see section 32. Agrodata performance monitor, AD--- instrument and Field-Master are available as an optional equipment, see section 33. 6600E---8750E models have an electric control system ECS:Autocontrol--- III, see section 34, Autocontrol IV, see section 35. CareTel is described in section 36 and AC V in section 37.

Valmet 6000---8750 tractors have 12 V electrical system (negative earthing). Battery (12 V, 160 Ah) is fitted in the engine com-partment in front of the cab.

Voltage 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Battery, 6000---6850 160 Ah. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Battery, 8000---8950 184 Ah. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Alternator:--- Magneti Marelli 870 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- Iskra, 6800, 8050---8750 1,28 kW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Starter motor:--- Magneti Marelli 3 kW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- Iskra, 6000---8400 / 8050---8950 3,1/3,6 kW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety start operated by the clutch pedal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bulbs:--- headlights 60/55 W---H4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- rear lights/brake lights 5/21 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- direction indicators 21 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- working lights 55 W---H3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- instrument panel and warning lights 2 W---1,2 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- cabin light 2X10W---4 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- parking light 5 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety precautions for the electrical sys-tem:

--- always connect the battery with the correct polarity--- disconnect thenegative leadof thebattery first and connectit last---disconnect the battery leads before removing the alternator--- remove the battery caps during charging to prevent thebuild up of explosive gases in the battery

Important!The alternator wiring must be disconnected before arcwelding is carried out on the tractor or an implementwhich is attached to it.Never run the engine with the alternator disconnected.Do not attempt to connect any additional electrical equip-ment, as this may damage components of the existingelectrical system.

Alternator

The tractor has a negative---earthed alternator which can eas-ily be damaged if incorrect connections are made in the elec-trical system. For example, connection of the battery withwrong polarity can burn the alternator or rectifier. The charg-ing current circuit must not be brokenwhen the engine is run-ning.

Battery checks and maintenance--- Check the charge in the battery using a hydrometer (acidtester). Thedensity of theelectrolyte shouldbe at least 1,23.--- Make sure that the fan belt (belts) are always correctly ten-sioned.--- Keep the battery clean. It can be washed with lukewarmwater after removal from the tractor..--- Also clean the pole studs, the cable terminals and the bat-tery retainer thoroughly. Wash off oxidized spots with water.Wipe the outside of the battery when it is clean, and coat thepole studs and the cable terminals with petroleum jelly.--- Refit the battery.

Caution!It is forbidden to smoke or have a naked flamenear the battery. The battery gives off explosivehydrogen gas!Battery electrolyte is corrosive.

IMPORTANT WARNING! Always when theelectric welding is done to the tractor, discon-nect both battery cables (+ and ---) and alterna-tor wires. Otherwise the tractor electric system(e.g. Σ ---Power, CareTel, Agrodata, AC/ACDpower lifts, ACIII, ACIV, ACV etc.) can be dam-aged.

Note! Auxiliary equipment must be fitted ac-cording to the instructions. Fuse nominal currentrating must be checked before fitting. On HiTechmodels any auxiliary components must not befitted to the AC V electric circuit (e.g. F24)(safety risk).

Position of fuse box

Circuit card, fuse box(The fuse diagram is placed under the fuse box)With effect from ser. no 662343, frames of relays K3and K7 change places.

Note! From ser. no. F50112 incl. the circuit card in thefuse box has been changed. At the same time wirelooms have been modified. The new circuit card isinterchangeable with the earlier one , except on olderAC IV tractors , on which wire 353 yellow (betweenpins X6/2---X6/3) must be removed when the new cir-cuit card is fitted.

Spare part numbers:--- new circuit card 31542330. . . . . .--- earlier circuit card 31542320. . . . .40

Model Code Page

31. Tractor electrical system1. 9. 2002 6000--8950 310 21. 6. 1999

Fuses and relaysThe fuse box is placed under the instrument panel. The fusebox should always be kept clean. It contains 30 fuses. Thenominal current rating of the fuses is 5---20 A. If any of thefuses blow, the fault must be traced and remedied. Fusesmust not be replaced with ones of higher a rating, since thismay cause damage to the electrical equipment. There arespace for reserve fuses between the fuses.

Important! Fuses on E---models, see section 34 (AutocontrolIII) or section 35 (Autocontrol IV)

FusesF1 15 A Hazard warning flashers, (water pump)F2 5 A Clock, radio, tachograph, CareTelF3 15 A Main beams, --- indicator lightF4 15 A Dipped beamsF5 10 A Parking light, leftF6 10 A Parking light, rightF7 25 A Front working lightsF8 25 A Light switchF9 15 A Trailer socket/rear fog lightF10 25 A Ignition switch, thermostart (3 pole socket)

(not HiTech and AC 2.2)F11 5 A Hydraulic power lift (+bat), buzzer (AC2)

Not HiTech.F12 10 A Rotating warning light, cab light,

AC 2.2, HiTech 2.0: radioF13 10 A Brake light. 662343--- , reserve (AC II, 2.1, 2.2)F14 15 A Reserve (water pump). HiTech and AC 2.2:

Ignition switch, thermostartF15 25 A Fan III ---speedF16 10 A Rear working lights, innerF17 10 A Direction indicators, (Agrodata), FieldMaster

Not HiTech.F18 5 A Instruments, warning lights, AutocontrolF19 10 A Combination control, wiper return

AC 2.2: Windscreen wiper/washer, hornF20 10 A Rear window wiper/washer. Radio.F21 15 A Fan I, II, air conditioning, floor fanF22 10 A Solenoid valves. 662343--- , 4WD, PTO, Delta

Power Shift (AC II), front PTO, 4WD (HiTech).Sensors (HiTech).

F23 10 A Rear working lights, outerF24 10 A Reserve. 662343--- , speedometer (AC---4 unit)

AC5, hand brake (HiTech). Seat direction.F25 15 A Air suspension seat, seat heating, reverse drive

control lockF26 10 A Reserve (electronic air filter)/reverse buzzer,

Sigma, Hi Shift.F27 10 A Reserve. 662343--- , brake lights, diff. lock (AC II)F28 10 A Reserve (telephone). 2 A if handsfree.F29 10 A Cigarette lighter, 2---pole power socketF30 10 A Rear fog light (reserv) (AC---4 sensors), CareTel

1 A, if handsfree.(F31) 15 A Electric air filter.F50 25A Stop solenoid, 8950.(F51) Main current switch, control, in engine

compartment.

RelaysK 1 relay, front working lightsK 2 relay, rear working lightsK 3 control relay, diff. lock/4WD. 662343--- , fog lightsK 4 relay, starter switchK 5 relay, starter switchK 6 relay, fan III ---speedK 7 reserve. 662343--- , relay for four wheel braking (AC II)K9 interval wiper relay (in front of the fuse box)K10 Relay direction indicators (in front of the fuse box)

K14 relay, starter motor (in engine compartment)Relays K11, K12, K13, K15 and K16, see Autocontrol II undercode 311 or Autocontrol 2.2 under code 314.K18 Control Stop, see under code 312 (AC 2.1)K19 Relay for Σ ---power system (ETB), see code 313.K24 Relay for Hi Shift, see code 412.K27 Relay for 4WD in AC 2.2, see code 314K28 Relay for hand brake, see section 50 (in lever console)Note! X1---X7, seewiring diagrams. Fuses and relays are alsolisted in all wiring diagrams in this manual.

X2 X3 X4 X5 X6

X7K7X1

K1

K2

K3

K6

K5

K4

1

F1 F2 F3 F4 F5 F6

F7 F8 F9 F10

F11

F12

F13

F14

F15

F16

F17

F18

F19

F20

F21

F22

F23

F24

F25

F26

F27

F28

F29

F30

3

7

9

143

Model Code Page

31. Tractor electrical system1. 8. 1998 6000--8750 310 38. 11. 1990

Headlight adjustment

Correct adjustment of the headlights is very important whenrunning on the public highway.Headlight adjustment can be carried out quickly and accu-rately by using anoptical headlight adjusting unit. If noopticalinstrument is available, adjustment can be done as follows:Check before adjusting the headlight that the tractor loadingis normal and tyre pressures are correct.With dipped---beamswitched on, the cutoff edge of the light pattern should comeat height H when the tractor is at distance L. With full ---beamswitched on, the distance between the light points should beB. Any necessary adjustment is done with the headlamp ad-justing screws.

Measurements:L = 5 mB =Distance between headlight centresH =Height of headlights above ground minus 50 mm

Standard trailer socket

1. Brake light (red)2. LH side direction indicator (yellow)3. Earthing (white)4. RH side direction indicator (violet)5. RH side parking light (brown)6. Permanent current, max. 15 A. This current can only becutwith the main current switch (if fitted).

7. LH side parking light (black)

144

Model Code Page

31. Tractor electrical system 6000--8750 310 415. 5. 1996

15. 6. 1992

Electrical equipment for engine

Starter motor Magneti Marelli (Lucas) M 127/2,8 12 VSpare part no 8353 31592

Test values, unloaded:--- speed 5500---8000 r/min max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- current consumption 115 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- voltage 11 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Test values, loaded:--- speed 1000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- current consumption 670 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- torque 20,8 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- voltage 8,0 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Locked rotor:--- speed 0 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- current consumption 1160 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- torque 45,4 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- voltage 5,0 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush spring pressure (new brush) 11,6---15,5 N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Min. brush length 8 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Commutator, min. diameter 38 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note! Tractors 8050---8750 have starter motor ISKRA 12 V 3,6 kW (F2858---). Mezzo---tractors which have Boschin--- line fuel injection pump, have a new starter motor ISKRA 12 V 3,1 kW (6000---6800: F3792---),(8000---8400: F3818---).

Alternator Magneti Marelli (Lucas) A127---65Spare part no 8366 40128 (6100---6600)Spare part no 8353 39304 (8000, 8100)

Nominal voltage 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max. current 6000 r/min 65 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Earth minus (---). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max permissible speed 15000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush length, new brush 17 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Min. brush length 5 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush spring pressure 1,3---2,7 N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Stator, no of poles 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Stator, no of phases 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Stator resistance 18 ohm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rotor resistance 2,9 ohm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Control voltage 13,4 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Nut for belt pulley, tightening torque 50 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note! Tractors 8050---8750 have alternator ISKRA 95 A 12 V, 1,28 kW.

41

Model Code Page

31. Tractor eletrical system1. 9. 2002 6000--8950 310 4A1. 8. 1998

Alternator Iskra AAK 5118 14 V 95 A(Sisu Diesel no. 8366 40927)

Nominal voltage 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max. current (test voltage 13 V)2000 r/min ≥50 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4000 r/min ≥84 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6000 r/min ≥94 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Charging starts at 1100 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max. permissible rotation speed 15 000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Slide ring min. diameter 15,3 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Min. brush length 5 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rotor resistance 2,7...2,97 ohm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Stator resistance 0,33...036 ohm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tightening torques:1. Shaft nut 50...70 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2. Connector B+ (M6) 4,2...6,0 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3. Connector D+ (M5) 2,7...3,8 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4. Connector W (M 5) 2,7...3,8 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alternator Bosch NC 14 V 70---120 A(Sisu Diesel no 8368 40939)

Nominal voltage 12 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max. current (13,5 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- 2000 r/min 79 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- 4000 r/min 111 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- 6000 r/min 120 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Charging starts at 1200 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Max. permissible rotation speed 12 000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tightening torques:1. Shaft nut 75...85 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2. Connector B+ (M8) Max. 18 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3. Connector D+ (M5) Max. 5 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

2

3

4

415---3

146

Model Code Page

31. Tractor electrical system1. 8. 1998 6000--8750 310 4B

Starter motor Iskra AZJ3234 12 V 3,1 kW(Sisu Diesel no. 8366 40949)

Test values, unloaded:Rotation speed 1000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Current 140 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Voltage 11 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test values, locked rotorRotation speed 0 r/min (max.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Current 1660 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Voltage 5,6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Torque ∫45 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brush length, new brush 23 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Min. brush length 13 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush spring pressure 40...48 N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Commutator, min diameter 43,5 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tightening torque:Studs (M6) 5,8 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid bolts (M5) 3,2 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid bolts (M6) 6,0 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field coil fixing bolts (M10) 37 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush holder 3,2 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Shift lever pin 12 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid connection screw (M8) 8,5 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid connectio screw (M10) 13 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starter motor Iskra AZJ3247 12 V 3,6 kW(Sisu Diesel no. 8366 40940)

Test values, unloadedRotation speed 1000 r/min. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Current 140 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Voltage 11 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test values, locked rotorRotation speed 0 r/min (max.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Current 1756 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Voltage 5,3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Torque ∫47 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brush length, new brush 23 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Min. brush length 13 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush spring pressure 40...48 N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Commutator, min diameter 43,5 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tightening torques:Studs (M6) 5,8 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid bolts (M5) 3,2 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid bolts (M6) 6,0 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field coil fixing bolts (M10) 37 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brush holder 3,2 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Shift lever pin 12 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid connection screw (M8) 8,5 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Solenoid connection screw (M10) 13 Nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARNING! When the radar is functioning, do not stayin the radar radiation area --- ranger for eyes.

NOTE! After the radar fitting it must be calibrated ac-cording to instructions:--- AC III, see page 341/1.--- AC IV, see page 351/2.--- ACD---power lift, see page 321/6.

147

Model Code Page

31. Tractor electrical system1. 6. 1999 6000--8950 310 4C

Speed radar

The radar is used in AC III, ACIV systems and in ACD---po-wer lift, which has a slip control. The radar is the same inthese sys-tems.

A B

A= Dickey--- john radarB= Vansco---radar.

Supply voltage=9---16 V DC (battery voltage)Signal= 130 impulses/meter(Impulses/driving speed=constant). The function principal isso called Doppler---effect.

Fitting

H=0,6 m

35˚

CThe radar is fitted so that it points rearwards at an angle of35˚ (see picture above).

The ground figure C must be situated so that in this areathere are no moveable points e.g. moveable soil, rotatingwheel etc. E.g. movement of corn stems can cause mal-functions and also surface of water pool. The size of theelliptic ground figure is 614 mm x 437 mm, when the heightof the radar from the ground is about 61 cm. In the radarradiation area there must not be hoses, tractor frame partsetc).

The metallic parts of the radar bracket must not be in theside of the radar sensor surface but a little rearwards.

The height of the radar from the ground can be from 60 cmto 4,8 meter (Dickey--- john) or from 60 cm to 1,2 meter(Vansco). The recommended height of the radar in Valtratractors is about 60 cm.

When fitting the radar the tractor must stand on the levelground:--- radar sensor surface must be clean (no oil or other dirt)--- The radar must not be fitted near a heat source.--- The radar bracket must be sturdy enough to preventvibrations (min. s=8 mm). If the radar shows other di-gits as zero, when the tractor is stationary, the possiblerearson can be vibrations

--- The tractor frame or metal bracket must not touch theradar metallic rear part.

62

69

7170

65

64

67

66

63

68

148

Model Code Page

31. Tractor electrical system1. 6. 1999 6000--8950 310 4D

Radar fastening parts (e.g. ACD---power lift)(these parts can be ordered from the Spare Part Center):

62=radar=3170210063=bracket=3291280064=plate=3289160065=bolt=HA8351 (2 pcs)66=washer=JD0412 (2 pcs)67=nut=JB8906 (2 pcs)68=wire=3318750069=bolt=HC8514 (4 pcs)70=washer=JD0406 (4 pcs)71=nut=JB8903 (4 pcs)

The radar bracket is fastenedon theRH sidedoor step attach-ment on the intermediate frame. If the tractor is equippedwithpressure air systems, the radar bracket is fastened on the LHside.

Electric connections:

The radar is connecetd with cable 33187500 to the tractorelectric system. Figuresbelowshowconnections inAC IVandACD power lift.

AC IV

X2C: Sensor connector in the lever consoleB7C: RadarGR 4: Earth point in the lever console rear part

ACD---power lift

X1E: connector on the plate in the lever console(HiTech) or a separate connector in the console(not HiTech)GR4: Earth point in the rear part of the lever con-soleB10: radar

Position of electric components on frameNote! Symbols, see component lists on pages 310/7---8, 310/11---12 and 310/16---17.

149

Model Code Page

31. Tractor electrical system1. 1. 1994 6000--8750 310 515. 5. 1993

Positionofelectricalcomponentsoncab

Thispicturecontainsalsosomecomponentsforelectro---hydraulicpowerlift(seesection32)

E---models,seesection34

150

Model Code Page

31. Tractor electrical system15. 5. 1993 6000--8750 310 68. 11. 1990

 

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