5230 Excavator Hydraulic System Control Valve (Front) - Mass Excavator - Type 2 Caterpillar


Control Valve (Front) - Mass Excavator - Type 2
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Illustration 1g00979575

(A) Rod end

(B) Head end

(C) Tank

(D) Stick

(E) Boom

(F) Bucket

(G) Pump




Illustration 2g00826345

(C) Tank

(D) Stick

(E) Boom

(F) Bucket

(G) Pump

(H) Implement signal

(I) Drain

(J) Load sensing signal to the rear control valve

(K) Signal to raise the relief setting for travel

(L) Load sensing signal to pump

(M) Load sensing signal from the rear control valve




Illustration 3g00979578

(D) Stick

(E) Boom

(F) Bucket

(1) Tighten the valve to the following torque. ... 160 ± 30 N·m (118 ± 22 lb ft)

(2) Apply 154-9731 Thread Lock Compound to the threads prior to assembly. Tighten the plugs to the following torque. ... 6 ± 2 N·m (54 ± 18 lb in)

(3) Apply 154-9731 Thread Lock Compound to the threads prior to assembly. Tighten the plugs to the following torque. ... 6.8 ± 1.8 N·m (60 ± 15 lb in)

(4) Tighten the bolts to the following torque. ... 300 ± 40 N·m (220 ± 30 lb ft)

(5) Tighten the plugs to the following torque. ... 215 ± 40 N·m (160 ± 30 lb ft)

(6) Tighten the plugs to the following torque. ... 6 ± 2 N·m (54 ± 18 lb in)

(7) 3F-8845 Spring

Free length ... 46.00 mm (1.811 inch)
Outside diameter ... 15.88 mm (0.6252 inch)

(8) Fit the valve to the body with a 0.015 to 0.020 mm (0.0006 to 0.0008 inch) loose fit.

(9) Tighten the valves to the following torque. ... 108 ± 7 N·m (80 ± 5 lb ft)

(10) The control valve may be one of the following solenoid valves.

7T-9746 Solenoid Valve

Tighten the nuts to the following torque. ... 2.85 ± 0.05 N·m (25 ± 0.44 lb in)

152-8333 Solenoid Valve

Tighten the nuts to the following torque. ... 9.0 ± 0.5 N·m (80 ± 4 lb in)

147-1223 Solenoid Valve

Tighten the nuts to the following torque. ... 9.0 ± 0.5 N·m (80 ± 4 lb in)

(11) Tighten the valve to the following torque. ... 60 ± 10 N·m (45 ± 7 lb ft)

(12) Tighten the nut to the following torque. ... 50 ± 10 N·m (37 ± 7 lb ft)

(13) 9T-8309 Spring

Free length ... 98.7 mm (3.886 inch)
Outside diameter ... 48.26 mm (1.900 inch)

(14) Expand the spacer. The spacer should fit tightly into the housing.

(15) Tighten the valves to the following torque. ... 50 ± 10 N·m (37 ± 7 lb ft)

(16) Tighten the valve to the following torque. ... 60 ± 10 N·m (45 ± 7 lb ft)

(17) Assemble the valve stems with the slots toward the bottom of the valve body.

(18) Fit the stem to the body with a 0.015 to 0.020 mm (0.0006 to 0.0008 inch) loose fit.

(19) Apply 154-9731 Thread Lock Compound to the threads prior to assembly. Tighten the plugs to the following torque. ... 6.8 ± 1.8 N·m (60 ± 15 lb in)

(20) Tighten the valves to the following torque. ... 250 ± 40 N·m (185 ± 30 lb ft)

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