BEARING 4T1254 - Caterpillar

Illustration 1 g02555999
Table 1
Specification for 244-8985 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 Before assembly, lightly lubricate the bore with 5P-3975 Rubber Lubricant.
Illustration 2 g02556002
Table 2
Specification for 244-8985 Engine Oil Pump Gp
Item Qty Part Specification Description
2 1 2S-2760 Spring Length under test force is 117.14 mm (4.612 inch).
Test force is 499 24 N (112.2 5.4 lb).
Approximate free length after test is 152.91 mm (6.020 inch).
Illustration 3 g02556004
Section A-A
Table 3
Specification for 244-8985 Engine Oil Pump Gp
Item Qty Part Specification Description
C 1 7N-5052 Gear Length is 84.000 0.015 mm (3.3071 0.0006 inch).
Depth of the bore in the oil pump body for the new gear is 84.15 0.02 mm (3.313 0.001 inch).
D 1 7W-1017 Shaft Diameter is 31.742 0.008 mm (1.2497 0.0003 inch).
After assembly, bore in the 7W-0060 Bushing for the new shaft assembly is 31.811 0.013 mm (1.2524 0.0005 inch).
E 2 4M-3248 Hollow Dowel Extension from the oil pump cover is 6.0 0.5 mm (0.24 0.02 inch).
F - - Distance from the end of the idler shaft to the gear face is 34.0 0.5 mm (1.34 0.02 inch).
G 1 7N-5058 Pump Drive Shaft Diameter is 31.742 0.008 mm (1.2497 0.0003 inch).
After assembly, bore in the 7W-0060 Bushing for the new shaft assembly is 31.811 0.013 mm (1.2524 0.0005 inch).
H - - Distance from the end of the shaft to the gear face is 47.0 0.5 mm (1.85 0.02 inch).
J 1 7W-0050 Pump Cover Installation depth of 7W-0060 Bushing in the pump cover is 1.5 0.5 mm (0.06 0.02 inch).
K 1 4P-5637 Oil Pump Body As Installation depth of 7W-0060 Bushing in the oil pump body assembly is 1.5 0.5 mm (0.06 0.02 inch).
Illustration 4 g02556006
Table 4
Specification for 244-8985 Engine Oil Pump Gp
Item