2009/03/23 Caterpillar

Load Haul Dump:

R1300GSeries II (S/N: RSL1-UP)

R1300G (S/N: LJB1-UP)

Disassembly and Assembly, RENR6933, "R1300G Load Haul Dump Power Train", "Differential and Bevel Gear - Install". This module is part of Service Manual, RENR6923 Volume 1.Disassembly and Assembly, RENR8561, "R1300G Series II Load Haul Dump Power Train", "Differential and Bevel Gear - Install". This module is part of Service Manual, RENR8531 Volume 1.

The information in Step 25 and Step 26 for the adjustment procedure has changed. Refer to the following information.

25. Tighten adjusting nut (5) by 70 degrees plus the increment to the nearest lock position.

Illustration 1	g00315693
Backlash Measurement for the Pinion Shaft Spline (A) Distance of the dial indicator from the centerline of the pinion.

Note: To ensure correct assembly and correct adjustment, measure the rolling torque of the bevel gear group at the pinion shaft. For new bearings, the rolling torque should be 1.8 to 7.4 N·m (16 to 65 lb in). For used bearings, the rolling torque should be 0.9 to 3.7 N·m (8 to 33 lb in).

26. Place a dial indicator tangent to the spline, as shown. Make sure that the yoke or the spline adapter is tight to the spline. Measure the backlash between bevel gear (25) and the pinion shaft. The backlash measurement must be 0.30 + 0.12 − 0.10 mm (.012 + .005 − .004 inch).