3512B Engine and SPF343, SPS343 and SPT343 Pumpers Caterpillar

Illustration 1	g01611036
Front view

(1) Lubricate the bore of the O-ring seals lightly with the clean engine oil.

(2) Torque for the plug ... 100 ± 15 N·m (74 ± 11 lb ft)

Use the following tightening sequence for the clamp bolts:

1. Snugly tighten the clamp assembly (6) to the tube assembly (7).

2. Tighten the two bolts (5) of the clamp assembly to the outlet adapter (3) to 47 ± 9 N·m (35 ± 7 lb ft).

3. Tighten the two bolts (4) of the clamp assembly to the tube assembly (7) to 47 ± 9 N·m (35 ± 7 lb ft).

Note: The oil cooler bypass valve must open with a pressure difference of 180 ± 20 kPa (26 ± 3 psi).

(8) 2W-1635 Spring for oil cooler bypass valve

Length under test force ... 102.0 mm (4.02 inch)

Test force ... 518 ± 26 N (116 ± 6 lb)

Free length after test ... 143.4 mm (5.65 inch)

Outside diameter ... 37.251 mm (1.4666 inch)

Note: The cooling jet sequence valves must start to open at a pressure difference of 130 ± 30 kPa (19 ± 4 psi).

Note: The cooling jet sequence valves must be fully open at a pressure difference of 200 ± 30 kPa (29 ± 4 psi).

(9) 6B-9202 Spring for the cooling jet sequence valve

Length under test force ... 68.3 mm (2.69 inch)

Test force ... 85 to 100 N (19.0 to 22.4 lb)

Free length after test ... 112.8 mm (4.44 inch)

Outside diameter ... 24.61 mm (0.969 inch)