HYDRAULIC SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
PISTON PUMP PRESSURE TEST AND ADJUSTMENT - CONTINUED
Pump Pressure Cutoff Adjustment.
Loosen locknut (8).
Rotate adjusting screw (9) clockwise to increase
pump cutoff pressure, or rotate adjusting screw
counterclockwise to decrease pump cutoff pres-
Tighten locknut (8).
Repeat step 3 to verify correct pump cutoff pres-
When pump pressure cutoff is correct, stop
N OT E
Only perform this test if standby pres-
sure is not correct. Perform standby
pressure test before performing margin
Connect pressure gage to hose.
Connect other end of hose to test port (2) for pis-
ton pump (1) signal pressure.