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| Illustration 1 | g00631998 |
Transmission Hydraulic System (1) Transmission oil filter (2) Downshift solenoid (3) Upshift solenoid (4) Priority reduction valve (5) Selector group (6) Torque converter inlet valve (7) Pressure control group (8) Transmission case (9) Differential case (10) Bearing cage for the drive shaft (11) Tube for the drive shaft (12) Line (13) Retarder (if equipped) (14) Flywheel case (15) Lube line for the flywheel (16) Oil cooler (17) Scavenge pump (18) Scavenge screen for the flywheel (19) Reservoir (20) Reservoir (21) Transfer gear case (22) Magnetic screen (23) Scavenge screen for the transfer gear case (24) Transmission charging pump section (25) Transmission scavenge pump section (26) Torque converter (27) Retarder control valve (if equipped) (28) Retarder air valve (if equipped) (29) Line to clutches (30) Lube line (31) Return line for the oil cooler | |
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| Illustration 2 | g00772523 |
Rear of Tractor (1) Transmission oil filter (8) Transmission case (21) Transfer gear case | |
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| Illustration 3 | g00772591 |
Rear of Tractor (22) Magnetic screen (23) Scavenge screen for the transfer gear case (24) Transmission charging pump section (inside) (25) Transmission scavenge pump section (outside) | |
Inlet oil to transmission charging pump section (24) is delivered from reservoir (19). The oil flows through magnetic screen (22) to transmission charging pump section (24). The oil then flows through transmission oil filter (1) to either downshift solenoid (2) or upshift solenoid (3). The oil flows to priority reduction valve (4) of selector group (5). The priority valve divides the pressure oil into pilot oil for pressure control group (7) and supply oil for the pressure control group.
Transmission scavenge pump section (25) pulls oil from transfer gear case (21) and reservoir (20). This oil flows through scavenge screen (23) for the transfer gear case and transmission scavenge pump section (25). The oil then flows to reservoir (19).
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| Illustration 4 | g00632004 |
Top View of Power Train Oil Lines (14) Flywheel case (15) Lube line for the flywheel (17) Scavenge pump (30) Lube line (31) Return line for the oil cooler | |
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| Illustration 5 | g00632006 |
Side View of Power Train Oil Lines (10) Bearing cage for the drive shaft (12) Line from scavenge pump (14) Flywheel case (15) Lube line for the flywheel (16) Oil cooler (17) Scavenge pump (18) Scavenge screen for the flywheel | |
The discharge oil from torque converter (26) flows through return line (31) to oil cooler (16). Oil from the oil cooler divides. Some of the oil flows through lube line (15) for the flywheel in order to lubricate the flywheel. Some of the oil flows to transmission case (8) in order to lubricate the transmission.
Transmission charging pump section (24) pulls oil from reservoir (19). This oil flows through magnetic screen (22), transmission charging pump section (24), and transmission oil filter (1) to upshift solenoid (3), downshift solenoid (2) and priority reduction valve (4) .
Oil in flywheel case (14) flows through scavenge screen (18) for the flywheel, scavenge pump (17) and line (12). The oil then flows to bearing cage (10) for the drive shaft.