PIN-PISTON 7N9810 - Caterpillar

Illustration 1 g02575578
Typical example
(5) Idler gear assembly
(6) Water pump drive gear
(8) Crankshaft gear
Table 1
Specification for 122-9281 Front Gear Gp and 334-5312 Front Gear Gp
Item Qty Part Specification Description
1 1 8T-2153 Socket Setscrew Install to the bottom of the threaded hole.
Torque to 6 1 N m (53 9 lb in).
2 1 7N-5252 Pump Drive Shaft After assembly, bore in 127-5400 Bushing is 75.000 0.055 mm (2.9527 0.0022 inch).
Diameter is 74.900 0.015 mm (2.9488 0.0006 inch).
3 1 235-3546 O-Ring Seal Before assembly, lightly lubricate the bore with the fluid that is being sealed.
4 2 7N-5246 Thrust Washer Thickness of one thrust washer is 8.50 0.05 mm (0.335 0.002 inch).
Width of groove in new pump drive shaft assembly is 8.75 0.10 mm (0.344 0.004 inch).
7 2 259-4598 O-Ring Seal Before assembly, lightly lubricate the bore with the fluid that is being sealed.
9 1 7C-3259 Shaft Diameter is 105.88 0.02 mm (4.168 0.001 inch).
After assembly, bore in 116-1365 Bearing for idler shaft is 105.970 0.010 mm (4.1720 0.0004 inch).
Installation depth for 116-1365 Bearing is 2.3 0.5 mm (0.09 0.02 inch).