Remove - TM-5-5420-279-230628

TM 5-5420-279-23

NOTE

This procedure is a general procedure for changing all Directional Control Valves.

Remove

(1)

De-pressurize hydraulic system. Refer

to unit maintenance procedure 5-118.

(2)

Disconnect the electrical connections

(4) to the directional control valve (1).

Refer to unit maintenance procedure

5-141.

(3)

Remove and retain the four screws (5)

securing the directional control valve

(1) to the manifold assembly.

(4)

Ensure that the four seals (2) are

removed from the manifold assembly

when the directional control valve (1) is

removed.

(5)

Cover exposed ports to exclude the

ingress of dirt and moisture. Replace

valve as soon as possible.

(6)

If a cartridge throttle (3) is fitted to the

pressure port, 'P' channel of the

directional control valve (1) remove

and clean it.

Install

(1)

Ensure mounting surfaces are clean.

(2)

If required, fit the cartridge throttle (3) to the pressure, 'P' channel in the new directional

control valve (1).

(3)

Ensure that the four seals (2) are fitted to the directional control valve (1).

(4)

Fit the directional control valve (1) to the manifold assembly and insert the four screws (5)

retained during removal. Use thread-locking compound on the screw threads.

(5)

Tighten the four screws (5) evenly to ensure a good seal between the directional control

valve (1) and the manifold assembly.