824G Series II Wheel Tractor, 825G Series II Soil Compactor and 826G Series II Landfill Compactor Electrohydraulic System Caterpillar

147-6546 Main Control Valve

Illustration 1	g00812608
Typical Example of a Main Control Valve

Note: This valve is for a 824G II Wheel Tractor. The main control valve for a 825G II Soil Compactor is not equipped with a tip valve (E). The 826G II Landfill Compactor is not equipped with a tilt valve (D) or a tip valve (E) .

(A) Outlet port

(B) Inlet port

(C) Lift valve

(D) Tilt valve

(E) Tip valve

(1) Tighten the four nuts to the following torque. ... 65 ± 7 N·m (48 ± 5 lb ft)

(2) Tighten the two nuts to the following torque. ... 100 ± 10 N·m (75 ± 7 lb ft)

(3) Tighten the valves to the following torque. ... 95 ± 13 N·m (70 ± 10 lb ft)

147-6547 Valve (Lift)

Illustration 2	g00648709
Control Valve

This main control valve is used for the lift function.

(4) Torque for the bolts ... 7 N·m (5.1 lb ft)

(5) 8J-9463 Spring

Free Length ... 31.75 mm (1.25 inch)

Outside Diameter ... 11.17 mm (0.44 inch)

(6) Torque for the cap ... 35 N·m (26 lb ft)

(7) Torque for the bolt ... 10 N·m (7 lb ft)

(8) 123-4921 Spring

Length ... 49.3 mm (1.95 inch)

Outside diameter ... 19.2 mm (.76 inch)

Inside diameter ... 14.2 mm (.56 inch)

(9) 123-4922 Spring

Length ... 47.0 mm (1.85 inch)

Outside diameter ... 29.2 mm (1.15 inch)

Inside diameter ... 21.45 mm (.845 inch)

(10) 118-1721 Spring

Length ... 38.1 mm (1.50 inch)

Outside Diameter ... 27.18 mm (1.070 inch)

Inside Diameter ... 22.35 mm (.880 inch)

(11) Torque for the caps ... 35 N·m (26 lb ft)

(12) Torque for the bolts ... 7 N·m (5.1 lb ft)

134-9873 Valve

Illustration 3	g00871970

Note: This control valve is used for the tilt function and the tip function.

(13) Tighten the bolts to the following torque. ... 9.5 ± 1.5 N·m (85 ± 13 lb in)

(14) Tighten the shoulder bolt to the following torque. ... 9.5 ± 1.5 N·m (85 ± 13 lb in)

(15) Tighten the housing to the following torque. ... 24 ± 2.7 N·m (215 ± 24 lb in)

(17) Tighten the bolts to the following torque. ... 9.5 ± 1.5 N·m (85 ± 13 lb in)

(12) 8J-9463 Spring

Free length ... 31.75 mm (1.25 inch)

Outside diameter ... 11.2 mm (0.44 inch)

(16) 122-9097 Spring

Free length ... 46.48 mm (1.830 inch)

Outside Diameter ... 27.53 mm (1.084 inch)