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Personal injury or death can result from sudden machine movement. Sudden movement of the machine can cause injury to persons on or near the machine. To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine. |
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Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts. Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified. The machine must be parked on a level surface and the engine stopped. Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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| Illustration 1 | g01445859 |
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Output transfer gears (1) Bolt (2) Gap (3) Input gear (4) Bearing cage (5) Idler gear (6) Housing (7) Output shaft (8) Bolt (9) Bolt | |
This adjustment procedure is used to set the end play in the input and output gears of the output transfer gear case.
Adjustment Procedure for Bearing End Play
Note: Before you assemble the components, make sure that the bearing cups are seated in the housing and in the bearing cage. Also, make sure that the bearing cones are seated against the gear shoulders. Use a
Note: End play for input gear (3) and pump gear (4) is
Note: End play for output shaft (11) is not adjustable. The output gear must turn freely after installation.
Note: End play for idler gear (9) is not adjustable. The idler gear must turn freely after installation.
Pump Gear (Secondary Steering)
Note: End play for pump gear is not adjustable. The pump gear must turn freely after installation.
- Position housing (6) horizontally with the opening for bearing cage (4) at the top. Place input gear (3) in housing (6). Place bearing cage (4) on the housing. Do not use shims or seals.
- Install two bearing cage bolts (1) in bearing cage (4) at a 180 degree interval. Tighten the two bearing cage bolts finger tight. Alternately tighten each bearing cage bolt by one-fourth of a turn to an equal torque. Torque for the bearing cage bolts
28 N·m (20 lb ft) . - Rotate input gear (3) at least three turns or rotate input gear (3) until the input gear turns freely.
- Again, alternately tighten each bearing cage bolt to a torque of
28 N·m (20 lb ft) . - Repeat Step 3 and Step 4 until the bearing cage bolts do not move at a torque of
28 N·m (20 lb ft) and until the input gear does not turn freely after three turns. - Loosen the bearing cage bolts evenly. Tighten the bearing cage bolts finger tight. Do not move any other parts.
- With a tapered feeler gauge, measure gap (2) that is between housing (6) and bearing cage (4) in four places. Measure the gap at each bearing cage bolt and at 90 degrees from each bearing cage bolt.
- To find the total thickness of shims that are needed, add
0.03 to 0.08 mm (.001 to .003 inch) to the average of the four measurements in Step 7. - Remove bearing cage (4).
- Install the shims and the O-ring. Install the bearing cage. Torque the bearing cage bolts to the proper specification.
- To make sure that input gear (3) turns freely, rotate input gear (3).