793B Off-Highway Truck Air System and Brakes Caterpillar


Control Valve (Hoist)

Usage:

793B 1HL



Illustration 1g00118197



Illustration 2g00751397

Section A-A

(1) Maximum torque for the two screws ... 9 N·m (80 lb in)

(2) 121-8800 Relief Valve

(3) 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)

(4) 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)

(5) Apply 4C-9505 Gasket Sealant to the threads of the screen assembly.

(6) Cracking pressure of 120-6417 Counterbalance Valve ... 11030 ± 520 kPa (1600 ± 75 psi)

(7) Torque for the adapter ... 200 ± 20 N·m (148 ± 152 lb ft)

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