Steering Pump

Control Valve Inspection and Replacement

1. Remove the control valve cap by removing the three flange bolts.
2. Remove the control valve spring, control valve and O-rings.

3. Check for wear, burrs, and other damage to the edges of the grooves in the valve.


4. Slip the valve back in the pump and check that it moves in and out smoothly.

If OK, go on step 5, if not replace the valve:

NOTE: The original valve was selected for a precise fit in the pump housing bore, so make sure the new one has the same identification mark.

Mark	Part Name	Outside Diameter mm (in)
A	CONTROL VALVE A	17.991 -17.996 (0.7083-0.7085)
B	CONTROL VALVE B	17.996-18.001 (0.7085-0.7087)

If OK, go on step 5, if not, replace the whole pump as an assembly.
5. Attach a hose to the end of the valve as shown.