ARM -(L.H.) 9D9591 - Caterpillar

Illustration 1 g06002133
(3) Pump cover
(5) Oil pump body assembly
Table 1
Specification for 423-7792 Engine Oil Pump Gp
Item Qty Part Specification Description
Before you install the pump, lubricate the moving parts with clean engine oil. Rotate the pump by hand in order to ensure that the pump rotates freely.
1 1 298-6387 O-Ring Seal Lubricate the bore lightly with fluid being sealed.
2 1 417-2406 Spring Length under test force is 102 mm (4.0 inch).
Test force is 725.9 36.0 N m (535.4 26.6 lb ft).
Free length after test is 144.5 mm (5.68 inch).
4 6 7W-0060 Bushing Bore of the bushing after installation is 31.811 mm (1.2524 inch).
Installation depth for the bushing is 1.5 0.5 mm (0.06 0.02 inch).
6 1 106-9866 Gear Length of the new gear is 110.000 0.015 mm (4.3307 0.0006 inch).
Depth of the bore in the oil pump body for the new gear is 110.15 0.02 mm (4.337 0.001 inch).
7 1 106-9865 Idler Shaft Diameter of the new shaft is 31.742 0.008 mm (1.2497 0.0003 inch).
Bore in the bushing for the new idler shaft after installation is 31.811 0.013 mm (1.2524 0.0005 inch).
8 1 106-9868 Shaft Diameter of the new shaft is 31.742 0.008 mm (1.2497 0.0003 inch).
Bore in the bushing for the new shaft after installation is 31.811 0.013 mm (1.2524 0.0005 inch).
B 2 7N-2043 Dowel Extension of dowel from pump cover is 6.0 1.0 mm (0.24 0.04 inch).
D - - Distance from the end of the idler shaft to the gear face is 34.0 0.5 mm (1.34 0.02 inch).
E - - Position of bearing joints from the centerline through the bearing bores is 45 15 degrees.
F 2 4M-3248 Hollow Dowel Extension of hollow dowel from the oil pump cover is 6.0 0.5 mm (0.24 0.02 inch).
G - - Distance from the end of the shaft to the gear face is 47.0 0.5 mm (1.85 0.02 inch).