PIPE 0943212 - Caterpillar

37. Use the following steps to adjust the upper transfer and pinion gear bearing end play.a. Rotate the transfer gear at least three complete revolutions to seat the bearings, and tighten bolts (36) evenly to a torque of 4.5 N m (40 lb in).b. Rotate the transfer gear at least three complete revolutions to seat the bearings, and tighten bolts (36) evenly to a torque of 9.0 N m (80 lb in).c. Use a feeler gauge or a taper gauge, and measure the gap between cage (27) and the transfer gear case. Make the measurement at the edge of the cage in line with the center of two bolts (36). Average the two measurements.d. Add 0.43 mm (.017 in) to the dimension found in Step 36c. This will be correct thickness of shims that should be used.38. Remove cage (27). Put the correct thickness of shims in position on the transfer gear case. Put cage (27) in position, and install the six bolts that hold it. Tighten the six bolts to a torque of 130 15 N m (95 11 lb ft). The bearing end play will be 0.10 0.05 mm (.004 .002 in). It is not necessary to check the bearing end play if this procedure has been followed for adjustment. However, if a measurement of the bearing end play is desired, see Bevel And Transfer Gears, Bearing End Play Measurement in this module. 39. Put the bevel gear case on its side so the bevel gear shaft is in a vertical position with the bevel gear at the bottom.
It is important for the bevel gear to be in this position. The bevel gear must be held as far away from the pinion gear as possible when gear clearance (backlash) is set.
40. Install a 5/8 "-11 NC (dog point) forcing screw (43) in the transfer gear case. Tighten the forcing screw until there is no measurement in the pinion gear. Make sure the forcing screw is in between the teeth of the gear.41. Put tooling (F) in position, and check the gear clearance (backlash) between the bevel gear and pinion gear. The gear clearance (backlash) must be 0.30 + 0.12 - 0.10 mm (.012 + .005 - .004 in). Check the gear clearance (backlash) on three different teeth evenly spaced around the gear.42. The difference between the high and low measurements must not be more than 0.15 mm (.006 in).43. Install the correct amount of shims (42) under bearing cage (14). Install the six bolts in the cage, and tighten them to a torque of 130 15 N m (95 11 lb ft).44. Check the gear clearance (backlash) to make sure it is still correct. If not, add or remove shims (42) as needed.
Forcing screw (43) must be removed.
45. Remove forcing screw (43) from the transfer gear case.End By:a. connect transmission and bevel gearsBevel Pinion And Transfer Gears Bearing End Play Measurement
The bevel pinion and transfer gears bearing end play should