1. Install an appropriate pressure gauge in pump
5. Turn off machine.
turn screw counterclockwise. Turn knob to desired pressure.
set screw (item 1) in the end of knob. While grasping knob,
turned knob until it bottoms out, you will have to loosen
adjusting knob (Item 2) clockwise.
pressure gauge reading while slowly turning
3. Open trigger gun, start pump, and observe
2. Turn knob (item 2) counterclockwise until spring is loose.
of twice the operating pressure.
head outlet. The gauge should have a pressure range
4. Close and open trigger gun to check unloading
pressure and bypass operation with pressure not
exceeding 400 psi than the operating pressure.
NOTE: If the gauge does not reach waht is desired and you
6. Grasp knob, turn screw clockwise
until it bottoms out.
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