918F WHEEL LOADER POWER TRAIN Caterpillar


Transmission Hydraulic Control Group

Usage:

(1) Torque for 17 bolts ... 30 ± 4 N·m (22 ± 3 lb ft)

(2) Torque for three socket head bolts ... 30 ± 4 N·m (22 ± 3 lb ft)

(3) 6Y2291 Spring (orange stripe):

Length under test force ... 52.86 mm (2.081 in)

Test force ... 31.7 ± 1.6 N (7.13 ± .36 lb)

Free length after test ... 61.8 mm (2.43 in)

Outside diameter ... 15 mm (.6 in)

(4) Torque for three 6V3965 Nipple

Assemblies ... 14 ± 2 N·m (10 ± 1 lb ft)

(5) 6Y7622 Valve Group

(6) 3J6956 Spring:

Length under test force ... 12.70 mm (.500 in)

Test force ... 2.0 ± 0.1 N (.38 ± .02 lb)

Free length after test ... 19.1 mm (.75 in)

Outside diameter ... 9.6 mm (.38 in)

(7) Torque for plug ... 25 ± 4 N·m (18 ± 3 lb ft)

Dump Valve Group (5)

(1) Torque for plug ... 14 ± 2 N·m (10 ± 1 lb ft)

(2) Torque for two plugs ... 37 ± 5 N·m (27 ± 4 lb ft)

(3) Torque for two plugs ... 25 ± 4 N·m (18 ± 3 lb ft)

(4) Torque for plug ... 0.6 N·m minimum (5 lb in minimum)

(5) 9L9188 Spring:

Length under test force ... 43.18 mm (1.70 in)

Test force ... 15.6 ± 1.3 N (3.5 ± .3 lb)

Free length after test ... 57.9 mm (2.28 in)

Outside diameter ... 11.18 mm (.440 in)

(6) 8P0346 Spring:

Length under test force ... 53.8 mm (2.12 in)

Test force ... 88 ± 4 N (19.8 ± 1.0 lb)

Free length after test ... 59.9 mm (2.36 in)

Outside diameter ... 11.91 mm (.469 in)

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