ENGINE AR-PRIMARY 4507989 - Caterpillar

Illustration 1 g03230796
Table 1
Specification for 391-9442 Piston Pump Gp
Item Qty Part Specification Description
1 13 094-1882 Plug Before assembly, apply blue Loctite High Flex GM to the threads.
Torque to 13 2 N m (115 18 lb in).
2 2 3J-1907 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
3 4 189-9763 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
4 2 199-0518 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
Illustration 2 g03230936
Section B-B
Table 2
Item Qty Part Specification Description
- - - Lubricate sliding surfaces lightly with hydraulic oil.
5 2 207-2985 Orifice Torque to 13 2 N m (115 18 lb in).
6 2 190-4896 Plug Before assembly, apply blue Loctite High Flex GM to the threads.
Torque to 25 3 N m (221 27 lb in).
7 1 5P-2545 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
8 12 165-2799 Spring Length under test force is 27.0 mm (1.06 inch).
Test Force is 170.6 25.0 N (38.4 5.6 lb).
Free length after test is 30.41 mm (1.197 inch).
9 2 8T-4136 Bolt Torque to 44 4 N m (32 3 lb ft).
10 1 273-8315 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
11 1 165-3839 Barrel Port location of both barrel ports must be opposite phase when the right and left pump assemble.
12 1 165-3838 Barrel Port location of both barrel ports must be opposite phase when the right and left pump assemble.
13 4 8T-7547 Bolt Before assembly, apply red Loctite 271 to the threads.
14 1 353-5837 Lip Type Seal Lubricate the sealing lip lightly with the lubricant that is being sealed.
15 1 1H-7339 O-Ring Seal Lubricate lightly with the lubricant that is being sealed.
E 4 192-0573 Dowel Pin Protrusion of the dowel from the surface is 1.88 to 2.10 mm (0.074 to 0.083 inch).