992G Wheel Loader and 854G Wheel Dozer Power Train Caterpillar

Illustration 1	g00103589

Pressure differential that opens the bypass valve ... 345 ± 21 kPa (50 ± 3 psi)

(1) 7M-1297 Spring

Length under test force ... 50.8 mm (2.00 inch)

Test force ... 176.3 ± 14.1 N (39.64 ± 3.16 lb)

Free length after test ... 75.7 mm (2.98 inch)

Outside diameter ... 22.35 mm (.880 inch)

(2) 133-2198 Spring

Length under test force ... 54.41 mm (2.142 inch)

Test force ... 58.18 ± 2.91 N (13.079 ± .654 lb)

Free length after test ... 68.95 mm (2.715 inch)

Outside diameter ... 16.00 mm (.630 inch)

(3) Lubricate the seal with the fluid that is being filtered.

(4) Do not use an air wrench to tighten the filter housing. Make sure that the shoulder of the filter housing contacts the bottom of the oil filter base.

(5) 3S-8652 Spring

Length under test force ... 25.4 mm (1.00 inch)

Test force ... 153 ± 12 N (34.4 ± 2.8 lb)

Free length after test ... 96.5 mm (3.80 inch)

Outside diameter ... 35.1 mm (1.38 inch)

9X-7781 Pressure Switch (Filter Bypass)

Note: This switch is used on the machines with the following serial number prefixes: 7HR and 1JW.

Illustration 2	g01064518

Pressure differential that opens the bypass valve ... 345 ± 21 kPa (50 ± 3 psi)

(6) Torque for the two flange nuts ... 20 ± 5 N·m (15 ± 4 lb ft)

(7) Torque for the two nuts ... 3.7 ± 0.3 N·m (32.75 ± 2.65 lb in)

(8) Lubricate the four O-rings with a minimal amount of the lubricant that is being sealed.

(9) Lubricate the O-ring with a minimal amount of the lubricant that is being sealed.

(10) 9X-8071 Spring

Length under test force ... 22.86 mm (.900 inch)

Test force ... 4.45 ± 0.50 N (1.000 ± .112 lb)

Free length after test ... 35.6 mm (1.40 inch)

Outside diameter ... 16.06 mm (.632 inch)

164-7577 Pressure Switch (Filter Bypass)

Note: This switch is used on the machines with the following serial number prefixes: ADZ and AMP.

Illustration 3	g01064519

Pressure differential that opens the bypass valve ... 345 ± 21 kPa (50 ± 3 psi)

(11) Torque for installing the sensor ... 80 ± 10 N·m (60 ± 7 lb ft)

(12) Lubricate the O-ring with a minimal amount of the lubricant that is being sealed.