793C and 793C XQ Off-Highway Truck Air System and Brakes Control Valve (Hoist) Caterpillar


Control Valve (Hoist)
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793C and 793C XQ Off-Highway Truck Air System and Brakes [SENR1453]
HYDRAULIC SYSTEM
VALVE GP-CONTROL
793C and 793C XQ Off-Highway Truck Air System and Brakes Control Valve (Hoist)
793C and 793C XQ Off-Highway Truck Air System and Brakes Control Valve (Hoist)



Illustration 1g00103225

Top View




Illustration 2g00103226

Section A-A

(1) Refer to Hydraulic System Specifications, "Relief Valve (Hoist Dual Stage)".

(2) Torque for three nuts ... 9.0 ± 0.5 N·m (80 ± 4 lb in)

(3) Refer to Hydraulic System Specifications, "Solenoid Valve (Hoist)".

Torque for three solenoids ... 108 ± 7 N·m (80 ± 5 lb ft)

(4) 6E-0907 Spring (inner)

Length under test force ... 62.0 mm (2.44 inch)
Test force ... 343 ± 27 N (77 ± 6 lb)
Free length after test ... 72.9 mm (2.87 inch)
Outside diameter ... 40.5 mm (1.59 inch)

(5) 6E-0908 Spring (outer)

Length under test force ... 48.0 mm (1.89 inch)
Test force ... 886 ± 44 N (199 ± 10 lb)
Free length after test ... 68.0 mm (2.68 inch)
Outside diameter ... 57.0 mm (2.24 inch)



Illustration 3g00103227

View B-B




Illustration 4g00103229

Section C-C




Illustration 5g00103234

Section D-D

(6) 7S-8491 Spring

Length under test force ... 25.4 mm (1.00 inch)
Test force ... 19.2 ± 1.6 N (4.31 ± .35 lb)
Free length after test ... 41.1 mm (1.62 inch)
Outside diameter ... 30.18 mm (1.188 inch)



Illustration 6g00103235

Section E-E

(7) Torque for the screen assembly ... 13 ± 3 N·m (9.6 ± 2.2 lb ft)




Illustration 7g00103237

View F-F

(8) 132-0103 Counterbalance Valve

Cracking pressure ... 6900 + 700 - 0 kPa (1000 + 100 - 0 psi)



Illustration 8g00103238

Section G-G

(9) Front brake oil cooler relief valve

Relief valve pressure setting ... 790 ± 20 kPa (115 ± 3 psi)
Torque for valve body ... 185 ± 15 N·m (136 ± 11 lb ft)

(10) Torque for plug ... 125 ± 15 N·m (92 ± 11 lb ft)

(11) 8B-4624 Shim

Quantity ... 5
Thickness ... 0.81 mm (0.032 inch)

Note: Adjust the number of shims here.

(12) 8B-4624 Shim

Quantity ... 7
Thickness ... 0.81 mm (0.032 inch)

Note: Do not adjust the number of shims here.

(13) 6J-3380 Spring

Length under test force ... 60.5 mm (2.38 inch)
Test force ... 653.9 ± 51.6 N (147.0 ± 11.6 lb)
Free length after test ... 86.6 mm (3.41 inch)
Outside diameter ... 34.95 mm (1.376 inch)

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