S0607080K
Page 3
Transmission and Torque Converter
(ZF 4WG-310)
Actuator..........................................................................................23
Cable..............................................................................................23
Transmission Electrical Circuits.................................................................... 24
Transmission Controller Circuit .............................................................24
Travelling Circuits ..................................................................................26
Neutral ........................................................................................... 26
Forward First Gear.........................................................................27
Forward Second Gear....................................................................28
Forward Third Gear........................................................................ 29
Forward Fourth Gear .....................................................................30
Reverse First Gear.........................................................................31
Reverse Second Gear....................................................................32
Reverse Third Gear........................................................................ 33
Downshift ..............................................................................................34
Overview........................................................................................34
Kick-down: Forward Second Gear to Forward First Gear
(Auto Selector Switch "O" - Manual Mode)................................... 34
Downshift (Auto Selector Switch "I" - Auto Mode)..........................36
Transmission Cut Off.............................................................................38
Installation View............................................................................................40
Inner Section.........................................................................................40
Front View .............................................................................................42
Side View ..............................................................................................43
Rear View..............................................................................................44
Hydraulic Control Unit (HSG-94)..................................................................46
Disassembly..........................................................................................47
Reassembly ..........................................................................................51
Transmission Disassembly...........................................................................59
Converter-Input .....................................................................................59
Drive Shaft Pump Power Take-off..........................................................62
Transmission Pump...............................................................................64
Output- Layshaft Assembly...................................................................64
Multi-disk Clutches................................................................................69
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