5-1
Section F Transmission
9803/3280
Section F
5-1
Issue 2*
Technical Data
Powershift Gearbox - 6 Speed
Description Full electro-hydraulic transmission unit with input, reverse,
layshaft, mainshaft, 6 speed and 4 wheel drive clutch packs
giving 6 forward and 4 reverse speeds. Electronically controlled
gear selection.
Designation PS766 (4 wheel drive)
Weight (dry)
2WD T.B.A.
4WD T.B.A.
Gear Ratios Forward Reverse
1st 8.17:1 6.45:1
2nd 4.90:1 4.76:1
3rd 3.62:1 1.78:1
4th 2.25:1 1.31:1
5th 1.35:1 -
6th 1.00:1 -
Torque Converter
Torque Converter Dia. 310 mm (12.2 in.)
Torque Converter Identification 04/600580 04/600581
Torque Multiplication at Stall 2.52:1 3.01:1
Converter Pressures (in neutral) bar kgf/cm
2
lbf/in
2
Converter In at 50 ºC 1000 rev/min 2.0 - 4.95 2.0 - 5.0 29 - 72
2000 rev/min 4.0 - 6.8 4.1 - 6.9 58 - 99
Converter Out at 50 ºC 1000 rev/min 0.6 - 2.25 0.6 - 2.3 8.7 - 33
2000 rev/min 1.25 - 2.50 1.3 - 2.6 18 - 36
Converter Inlet Relief Valve Pressure (max.) 7.1 7.2 103
Lubrication Pressures (in neutral)
At 50 ºC 1000 rev/min 0.25 - 1.0 0.26 - 1.0 3.6 - 14.5
2000 rev/min 0.50 - 1.0 0.51 - 1.0 7.3 - 14.5
Main Line Pressure (in neutral)
At 50 ºC 1000 rev/min 11.4 - 15.7 11.6 - 16.0 165 - 228
2000 rev/min 12.4 - 17.0 12.6 - 17.3 180 - 246
Flow Rates (in neutral) L/min US gal/min UK gal/min
Cooler at 50 ºC 1000 rev/min 14.0 MIN 3.7 MIN 3.1 MIN
2000 rev/min 17.0 MIN 4.5 MIN 3.7 MIN
Pump at 50 ºC 1000 rev/min 16.0 MIN 4.2 MIN 3.5 MIN
2000 rev/min 34.0 MIN 9.0 MIN 7.5 MIN
Control Solenoid Valves 3 way, 2 position, normally closed, integral suppression diode.
Coil Resistance 7.5 Ohm @ 20 ºC
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