De-pressurize hydraulic system. Refer to
unit maintenance procedure 5-118.
Remove the cartridge valve (1) by
applying a wrench to the body (2).
Inspect components for wear, damage
Replace components as required.
Fit cartridge valve (1) to manifold block
(4). Take care that O-ring (3) is not
dislodged when inserting valve.
Apply system pressure and check for