BODY AS-PISTON 1077563 - Caterpillar

Illustration 1 g03334126
Front view of engine
Table 1
Specification for 386-4848 Front Gear Gp
Item Qty Part Specification Description
1 1 7N-5279 Adapter As After installation, bore of 127-5400 Bushing is 75.000 0.055 mm (2.9528 0.0022 inch).
2 2 7N-7539 Thrust Washer Thickness is 8.50 0.05 mm (0.335 0.002 inch).
3 1 144-8263 Idler Gear As After installation, bore of 140-9597 Bushing is 90.000 0.010 mm (3.5433 0.0004 inch).
Installation depth of the bushing is 2.3 0.5 mm (0.09 0.02 inch).
4 1 7C-3258 Thrust Washer Assembly Thickness of 7C-3257 Thrust Washer is 7.00 0.15 mm (0.276 0.006 inch).
Protrusion of 7N-2047 Dowel is 4.5 0.5 mm (0.18 0.02 inch).
5 3 259-4598 O-Ring Seal Before assembly, lubricate the bore lightly with the lubricant that is being sealed.
6 1 7C-3260 Shaft Diameter is 89.880 0.020 mm (3.5386 0.0008 inch).
Illustration 2 g03334127
Section A-A
Table 2
Item Qty Part Specification Description
7 1 7C-4165 Adapter As After installation, bore of 127-5400 Bushing is 75.000 0.055 mm (2.9528 0.0022 inch).
8 1 7N-5874 Auxiliary Drive Shaft Diameter is 74.900 0.015 mm (2.9488 0.0006 inch).
9 1 7N-5245 Pump Adapter After installation, bore of 127-5400 Bushing is 75.000 0.055 mm (2.9528 0.0022 inch).
10 1 7N-5239 Pump Drive Shaft As Diameter is 74.900 0.015 mm (2.9488 0.0006 inch).
Install the 8T-2153 Socket Setscrew to the bottom of the threaded hole and tighten to 6 1 N m (53 9 lb in).
11 1 278-4287 Pump Adapter After installation, bore of 127-5400 Bushing is 75.000 0.055 mm (2.9528 0.0022 inch).
During assembly, flush the bushing with the pump adapter surface.
Oil hole in the bushing must be aligned with the hole in the bore.
12 2 7N-5246 Thrust Washer Thickness is 8.50 0.05 mm (0.335 0.002 inch).
Width of groove in the new pump drive shaft assembly is 8.75 0.10 mm (0.344 0.004 inch).