3500 Generator Set Engines Caterpillar

Illustration 1	g00886231
Typical example

(1) Plug

Tighten the plug to the following torque: ... 100 ± 15 N·m (75 ± 11 lb ft)

(2) Clamp bolts

Tighten bolts to the following torque: ... 47 ± 9 N·m (35 ± 7 lb ft)

Tightening sequence for the clamp bolts

1. Snugly tighten the clamp assembly to the tube.

2. Tighten the clamp assembly to the elbow.

3. Tighten the clamp assembly to the tube.

(3) 2W-1635 Spring for oil cooler bypass valve

Length under test force ... 102 mm (4.02 inch)

Test force ... 492 to 544 N (111 to 122 lb)

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

Outside diameter ... 37.25 mm (1.467 inch)

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

(4) 6B-9202 Spring for the cooling jet sequence valve

There is a spring at each end of the block.

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

Test force ... 85 to 102 N (19 to 23 lb)

Free length after test ... 112.7 mm (4.44 inch)

Outside diameter ... 24.60 mm (0.969 inch)

Both of the cooling jet sequence valves must start to open at the following pressure difference: ... 130 ± 30 kPa (19 ± 4 psi)

Both of the cooling jet sequence valves must be fully open at the following pressure difference: ... 200 ± 30 kPa (29 ± 4 psi)