3512E Tier 4 Final Engines for Land Electric Drilling Caterpillar


Engine Oil Pump

Usage:

3512E BZ3


Illustration 1g03834781

Table 1
Specification for 245-6771 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. 
2S-2760 Spring  Length under test force is 117.14 mm (4.612 inch).
Test force is 499 ± 24 N (112 ± 5 lb).
Approximate free length after test is 152.91 mm (6.020 inch)


Illustration 2g03834782
Section A-A

Table 2
Item  Qty  Part  Specification Description 
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)
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)
4M-3248 Hollow Dowel  Extension from the oil pump cover is 6.0 ± 0.5 mm (0.24 ± 0.02 inch)
Distance from the end of the idler shaft to the gear face is 34.0 ± 0.5 mm (1.34 ± 0.02 inch)
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)
Distance from the end of the shaft to the gear face is 47.0 ± 0.5 mm (1.85 ± 0.02 inch)
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)
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 3g03834783

Table 3
Item  Qty  Part  Specification Description 
7N-2043 Dowel  Extension from the 1N-4637 Pump Cover is 6.0 ± 1.0 mm (0.24 ± 0.04 inch)


Illustration 4g03834784

Table 4
Item  Qty  Part  Specification Description 
Position of 7W-0060 Bushing joints from the centerline through the bearing bores is 45 ± 15 degrees. 
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