2005/12/19 Correction to Disassembly and Assembly , "Differential and Bevel Gear - Assemble" {3258} Caterpillar

Landfill Compactor:

826GSeries II (S/N: AYH1-UP)

826G (S/N: 7LN1-UP)

Soil Compactor:

825GSeries II (S/N: AXB1-UP)

825G (S/N: 6RN1-UP)

Wheel Dozer:

824GSeries II (S/N: AWW1-UP)

824G (S/N: 4SN1-UP)

Wheel Loader:

980GSeries II (S/N: AXG1-UP; AWH1-UP; AYT1-UP)

980G (S/N: 9CM1-UP; 2KR1-UP)

Disassembly and Assembly, RENR6029, "826G Series II Landfill Compactor, 825 Series II Soil Compactor and 824G Series II Wheel Tractor Power Train", "Differential and Bevel Gear - Assemble". This module is part of Service Manual, RENR6020.Disassembly and Assembly, SENR1330, "824G Wheel Tractor, 825 Soil Compactor and 826G Landfill Compactor Power Train", "Differential and Bevel Gear - Assemble". This module is part of Service Manual, SENR1325.Disassembly and Assembly, SENR5877, "980G Wheel Loader Power Train", "Differential and Bevel Gear - Assemble". This module is part of Service Manual, SENR5870.Disassembly and Assembly, RENR4378, "980G Series II Wheel Loader Power Train", "Differential and Bevel Gear - Assemble". This module is part of Service Manual, RENR6000.

The new terminology for Wheel Tractor is Wheel Dozer. All future information should reflect the change.

In the procedure for assembling the Differential and Bevel Gear, a portion of the existing information is incorrect. The following steps are the new procedure. The remainder of the information is correct.

Assembly Procedure

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Illustration 1	g00527427

2. Heat the bevel gear to a temperature between 70 °C (160 °F) and 120 °C (250 °F) in order to install the bevel gear to the differential case assembly. Install two M20X2.5 threaded guide pins (45) in the bevel gear (44). Refer to Illustration 1.

3. Attach a hoist and a suitable lifting device to case assembly (33). Use the hoist to carefully install case assembly (33) to bevel gear (44). The weight of the case assembly is approximately 39 kg (86 lb).

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Illustration 2	g00527113

4. Install four new bolts (42) and new washers that are equally spaced. Tighten the four bolts between 70 N·m (50 lb ft) and 100 N·m (75 lb ft). Ensure that bevel gear (44) is properly seated to case assembly (33). Loosely, install 20 new bolts (42) and new washers. After the bevel gear has cooled to 50 °C (120 °F) or less, loosen the four tightened bolts. Use an alternating sequence and mark each bolt as the bolts are tightened. Tighten the 24 bolts to the following torque 130 ± 10 N·m (95 ± 7 lb ft). After the 24 bolts have been torqued, turn the bolts to an additional 120 ± 10°.