C175-16 and C175-20 Engines for Off-Highway Trucks Caterpillar


Gear Group (Front)

Usage:

797F LAJ


Illustration 1g06255591
Typical Example
(6) Crankshaft gear
(11) Drive gear

Table 1
Item  Qty  Part  Specification Description 
279-0768 Bolt  Before assembly, lightly lubricate both sides of the 281-2712 Washer with clean engine oil.
Torque to 190 ± 30 N·m (140 ± 22 lb ft)
281-2711 Washer  Before assembly, lightly lubricate both sides of the washers with clean engine oil. 
307-2402 Idler Gear As  After installation, bore of 307-2403 Bushing in the idler gear assembly is 89.964 ± 0.010 mm (3.5419 ± 0.0004 inch).
Installation depth of the bushing is 2.3 ± 0.5 mm (0.09 ± 0.02 inch)
348-7076 Front Adapter As  After installation, bore of 348-7074 Bushing in the front adapter assembly is 75.035 mm (2.9541 inch).
Installation depth of the bushing is 3.6 ± 0.5 mm (0.14 ± 0.02 inch)
485-0316 Pump Adapter  After installation, bore of 318-4810 Bushing in the pump adapter is 94.056 mm (3.7030 inch).
During assembly, flush the bushing with the pump adapter surface. 
348-7077 Front Adapter As  After installation, bore of 348-7074 Bushing in the front adapter assembly is 75.035 mm (2.9541 inch).
Installation depth of the bushing is 3.6 ± 0.5 mm (0.14 ± 0.02 inch)
348-7075 Oil Pump Adapter  After installation, bore of 348-7074 Bushing in the oil pump adapter is 75.023 mm (2.9537 inch).
Installation depth of the bushing is 0.5 ± 0.5 mm (0.02 ± 0.02 inch)
259-4598 O-Ring Seal  Before assembly, lightly lubricate the bores with the lubricant that is being sealed. 
10  277-6911 Idler Shaft  Diameter is 89.880 ± 0.020 mm (3.539 ± 0.0008 inch)
12  165-4852 O-Ring Seal  Before assembly, lightly lubricate the bores with the lubricant that is being sealed. 
13  281-3114 Bolt  Before assembly, lightly lubricate both sides of the 281-2712 Washer with clean engine oil.
Torque to 190 ± 30 N·m (140 ± 22 lb ft)
14  539-0056 Shaft As  Diameter is 74.900 ± 0.015 mm (2.9488 ± 0.0006 inch)

Caterpillar Information System:

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