994H Wheel Loader Electrohydraulic System Caterpillar


Main Control Valve - Left Side

Usage:

994H DWC



Illustration 1g02334799

(1) Maximum torque for the four solenoids ... 35 ± 3 N·m (26 ± 2 lb ft)

(2) Maximum torque for the four solenoid nuts ... 20 ± 3 N·m (15 ± 2 lb ft)

(3) Maximum torque for the actuator bolts ... 55 ± 10 N·m (41 ± 7 lb ft)

(4) 118-5087 Spring

Free length ... 63.5 mm (2.5 inch)
Outside diameter ... 35.5 mm (1.4 inch)

(5) 118-5086 Spring

Free length ... 76.2 mm (3 inch)
Outside diameter ... 49.2 mm (1.90 inch)

(6) 121-2051 Spring

Free length ... 53.53 mm (2.10 inch)
Outside diameter ... 15.24 mm (0.60 inch)



Illustration 2g02335762

(7) The line relief valve for the head end of the tilt cylinder.

ReferenceFor more information on the line relief valve for the head end of the tilt cylinder, see Specifications, "Line Relief Valve (Tilt Cylinder Head End)".

(8) The line relief valve for the rod end of the tilt cylinder.

ReferenceFor more information on the line relief valve for the rod end of the tilt cylinder, see Specifications, "Line Relief Valve (Tilt Cylinder Rod End)".

(9) The line relief valve for the head end of the lift cylinder.

ReferenceFor more information on the line relief valve for the head end of the lift cylinder, see Specifications, "Line Relief Valve (Lift Cylinder Head End)".

(10) Regulated pressure for the pressure reducing valve. ... 1580 ± 150 kPa (229 ± 22 psi)

(11) Vent operated makeup valve.

ReferenceFor more information on the vent operated makeup valve for the rod end of the lift cylinder, see Specifications, "Line Relief Valve (Lift Cylinder Rod End)".

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