992G Wheel Loader and 854G Wheel Dozer Steering System Steering Control Valve (with Secondary Steering) Caterpillar


Steering Control Valve (with Secondary Steering)
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Illustration 1g01330143

(1) 5J-3419 Spring

Length under test force ... 47.2 mm (1.86 inch)
Test force ... 95 ± 8 N (21.4 ± 1.7 lb)
Free length after test ... 94.0 mm (3.70 inch)
Outside diameter ... 28.58 mm (1.125 inch)

Note: The 5J-3419 Spring is for the main pump check valve.

(2) 7S-8491 Spring

Length under test force ... 25.4 mm (1.00 inch)
Test force ... 19.0 ± 2.0 N (4.31 ± 0.35 lb)
Free length after test ... 41.1 mm (1.62 inch)
Outside diameter ... 30.18 mm (1.188 inch)

Note: The 7S-8491 Spring is for the supplemental check valve.

(3) Torque for installing the pressure relief valve (secondary steering pump) ... 50 ± 7 N·m (37 ± 5 lb ft)

(4) Torque for the locknut ... 13 ± 2 N·m (115 ± 18 lb in)

(5) Torque for installing the diverter valve ... 150 ± 7 N·m (110 ± 5 lb ft)

(6) 2S-2596 Springs

Length under test force ... 8.0 mm (0.31 inch)
Test force ... 4.0 ± 0.3 N (0.950 ± 0.076 lb)
Free length after test ... 33.3 mm (1.31 inch)
Outside diameter ... 8.43 mm (0.332 inch)

Note: The springs are in two locations for the makeup valves.

(7) Torque for the plug ... 48 ± 5 N·m (35 ± 4 lb ft)

(8) Torque for installing the cylinder load shuttle valve ... 35 ± 3 N·m (26 ± 2 lb ft)

(9) Torque for installing the crossover relief valve for the cylinder ... 60 ± 7 N·m (44 ± 5 lb ft)

(10) Torque for the locknut ... 13 ± 2 N·m (115 ± 18 lb in)

(11) Torque for the adapter ... 430 ± 40 N·m (320 ± 30 lb ft)

(12) 6E-4500 Spring for the valve spool

Length under test force ... 58.45 mm (2.301 inch)
Test force ... 189 ± 9 N (42 ± 2 lb)
Free length after test ... 62.0 mm (2.44 inch)
Outside diameter ... 42.5 mm (1.67 inch)

(13) 6E-4499 Spring for the retainer

Length under test force ... 44.45 mm (1.750 inch)
Test force ... 62.0 ± 5.0 N (14 ± 1.1 lb)
Free length after test ... 54.0 mm (2.13 inch)
Outside diameter ... 29.5 mm (1.16 inch)

(14) 4J-8224 Shim and 5J-4776 Shim are cylinder flow balance shims.

Thickness of one 4J-8224 Shim ... 0.25 mm (0.010 inch)

Thickness of one 5J-4776 Shim ... 0.12 mm (0.005 inch)

Two shims will change the timing of the steering at high idle by the following amount. ... 0.1 second

Note: The addition of one 4J-8224 Shim and of one 5J-4776 Shim will cause a faster right turn and a slower left turn. The removal of the shims will cause a slower right turn and a faster left turn.

(15) Torque for installing the main pump pressure relief valve ... 100 ± 10 N·m (75 ± 7 lb ft)

(16) Torque for the locknut ... 50 ± 7 N·m (37 ± 5 lb ft)

(17) Torque for the adapter ... 430 ± 40 N·m (320 ± 30 lb ft)

(18) Torque for the locknut ... 13 ± 2 N·m (115 ± 18 lb in)

(19) Torque for installing the pressure reducing valve (pressure regulating valve) ... 60 ± 7 N·m (44 ± 5 lb ft)