CHASSIS AR 2122741 - Caterpillar

Illustration 1 g01558113
Table 1
Specification for 272-6955 Main Hydraulic Pump Gp, 376-8862 Main Hydraulic Pump Gp and 397-3680 Main Hydraulic Pump Gp
Item Qty Part Specification Description
1 16 094-1882 Plug Apply blue Loctite High Flex GM to the threads of plugs.
Torque to 13 2 N m (115 18 lb in).
2 8 189-9763 O-Ring Seal Lubricate the bore lightly with the lubricant being sealed.
C 2 129-7979 Dowel Extension of the dowel from the body (3) is 6.8 to 9.0 mm (0.27 to 0.35 inch).
D 2 129-7979 Dowel Extension of the dowel from the body (3) is 3.8 to 6.0 mm (0.15 to 0.24 inch).
Illustration 2 g01558114
Section A-A
Table 2
Item Qty Part Specification Description
E 4 192-0573 Dowel Pin Extension of the dowel pin from the surface of the bearing (4) is 2.67 to 2.92 mm (0.105 to 0.115 inch).
5 6 - Lubricate the bore lightly with the lubricant being sealed.
6 1 173-3498 Barrel The location of both ports for the barrel must be matched during assembly of the right pump and the left pump.
7 2 190-4896 Plug Apply blue Loctite High Flex GM to the threads of plugs.
Torque to 25 3 N m (221 27 lb in).
8 18 118-4057 Spring Length under test force is 31.0 mm (1.22 inch).
Test force is 360 36 N (81 8 lb).
Free length after test is 35.900 mm (1.4134 inch).
Illustration 3 g03774278
Section F-F
Table 3
Item Qty Part Specification Description
9 2 8J-4645 Plug Torque to 210 to 231 N m (155 to 170 lb ft).
10 6 - Lubricate lightly with the lubricant that is being sealed.
11 1 341-2862 Lip Type Seal Lubricate the sealing lip of the lip type seal lightly with the lubricant that is being sealed. Assemble the lip type seal to a maximum of 0.5 mm (0.02 inch) in parallel to the surface of the body (3).
12 2 8T-4136 Bolt Torque to 44 4 N m (32 3 lb ft).
13 1 173-3496 Barrel The location of both ports for the barrel must be matched during assembly of the right pump and the left pump.
H 4 094-1875 Dowel Extension of the dowel from the body (3) is 5.55 to 5.80 mm (0.219 to 0.229 inch).