793C and 793C XQ Off-Highway Truck Hydraulic System Caterpillar

Illustration 1	g01052165
Top View

(1) Torque for eight bolts ... 3 ± 0.25 N·m (27 ± 2 lb in)

(2) 112-5874 Proportional Solenoid

Note: Refer to Specifications, "Proportioning Solenoid (Hoist)" for additional information.

Illustration 2	g01052167
Section A-A

(3) 121-2052 Spring

Length under test force ... 8.0 mm (0.32 inch)

Test force ... 17 ± 0.5 N (3.9 ± 0.1 lb)

Free length after test ... 12.7 mm (0.50 inch)

Outside diameter ... 10.312 mm (0.4060 inch)

(4) 121-2051 Spring

Length under test force ... 46.0 mm (1.81 inch)

Test force ... 21 ± 0.6 N (4.7 ± 0.1 lb)

Free length after test ... 53.53 mm (2.108 inch)

Outside diameter ... 15.24 mm (0.600 inch)

(5) 118-5087 Spring

Length under test force ... 50.0 mm (1.97 inch)

Test force ... 245 ± 19 N (55 ± 4 lb)

Free length after test ... 63.5 mm (2.50 inch)

Outside diameter ... 35.58 mm (1.401 inch)

(6) 118-5086 Spring

Length under test force ... 55.0 mm (2.17 inch)

Test force ... 440 ± 35 N (100 ± 8 lb)

Free length after test ... 76.2 mm (3.00 inch)

Outside diameter ... 49.2 mm (1.94 inch)

Illustration 3	g00515442
View B-B

Illustration 4	g01052313
Section C-C

Illustration 5	g01052614
Section D-D

(7) 7S-8491 Spring

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

Test force ... 19 ± 1.5 N (4.3 ± 0.4 lb)

Free length after test ... 41.1 mm (1.62 inch)

Outside diameter ... 30.18 mm (1.188 inch)

Illustration 6	g01052615
Section E-E

(8) Torque for the screen assembly ... 13 ± 3 N·m (115 ± 26 lb in)

Illustration 7	g01052171
View F-F

(9) 132-0103 Counterbalance Valve

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

Illustration 8	g01052617
Section G-G

(10) 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)

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

(12) 8B-4624 Shim thickness ... 0.81 mm (0.032 inch)

Note: Adjust the number of shims at location (12) .

(13) 8B-4624 Shim

Quantity ... 7

Thickness ... 0.81 mm (0.032 inch)

Note: Do not adjust the number of shims at location (13) .

(14) 6J-3380 Spring

Length under test force ... 60.5 mm (2.38 inch)

Test force ... 650 ± 50 N (150 ± 11 lb)

Free length after test ... 86.6 mm (3.41 inch)

Outside diameter ... 34.95 mm (1.376 inch)

Illustration 9	g01052173
Section A-A

(15) 109-6918 Relief Valve

Note: Refer to Hydraulic Specifications, "Relief Valve (Hoist Dual Stage)" for additional information.

(16) Apply 5P-3413 Pipe Sealant to the threads of the plug.