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Pilot Head Unloader Valve Adjustments
(Step 1)
Setting the pilot valve from scratch.
Using the diagram to the right:
1.
Differential locknut
2.
Differential screw
3.
Pressure screw locknut
4.
Pressure screw
come to rest on the internal ball.
clockwise direction after coming in contact with the ball
adjustment.
turn in the counterclockwise direction. Snug differential
(Step 2)
Fine tuning the pilot valve setting.
Using the diagram above:
1.
Differential locknut
2.
Differential screw
3.
Pressure screw locknut
4.
Pressure screw
and minimum settings.
first.
3
2
1
um
If the setting you are attempting to achieve is vastly
different from the original factory setting, the valve
may require an internal components change.
e
e
e if the
ired
um
4
-
12
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