G3500B Engines Caterpillar

Illustration 1	g01421468
Front view

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

(2) Torque for the three bolts ... 55 ± 7 N·m (41 ± 5 lb ft)

(3) 2W-1635 Spring

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

Test force ... 518 ± 26 N (116.5 ± 5.8 lb)

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

Outside diameter ... 37.251 mm (1.4666 inch)

Note: The bypass valve (4) must move freely in the bore.

(4) Bypass valve

Start to open pressure ... 287 ± 7 kPa (41.5 ± 1.0 psi)

Fully open pressure ... 480 ± 7 kPa (69.5 ± 1.0 psi)

For the procedure to adjust the duplex filter's toggle valve assembly, refer to Testing and Adjusting, "Duplex Oil Filter - Adjust".

Illustration 2	g01458733
(5) Fluid control valve group

(6) Before assembly, lubricate the bore of the two O-ring seals with clean engine oil.

(7) Torque for the nut ... 45 ± 7 N·m (33 ± 5 lb ft)

(8) Torque for the retainer nut ... 45 ± 7 N·m (33 ± 5 lb ft)