Issued July 2024
Maintenance and Adjustment
Copyright 2024, The Heil Co.
Printed in the U.S.A.
Maintenance and Adjustment
91
5. Using allen wrench loosen jam nut on body main relief.
6. Using allen wrench on main relief adjusting screw, adjust main relief by turning "in" (clockwise) to increase pressure or
“out” (counter-clockwise) to decrease pressure.
7. Using allen wrench tighten jam nut. When tightening jam nut, use allen wrench to hold adjusting screw to prevent
adjustment screw from turning.
8. Using allen wrench replace and tighten caste nut.
Body Valve Pump 2
1. Install 5000 psi pressure gauge on body valve quick-disconnect.
2. Disconnect low torque pressure switch installed on the pump.
3. Unlock and slightly raise the tailgate
4. Activate packer extend until it reaches the end stroke and hold the function while a helper watch the gauge.
5. Verify pressure on gauge reads 2500 psi.
6. If pressure reading is incorrect, using an open end wrench, remove caste nut on main relief.
7. Using allen wrench loosen jam nut on body main relief.
8. Using allen wrench on main relief adjusting screw, adjust main relief by turning "in" (clockwise) to increase pressure or
“out” (counter-clockwise) to decrease pressure.
9. Using allen wrench tighten jam nut. When tightening jam nut, use allen wrench to hold adjusting screw to prevent
adjustment screw from turning.
10.Using allen wrench replace and tighten caste nut.
11.Return packer home.
12.Lower and lock the tailgate.
13.Reconnect Low Torque pressure switch.
14.Remove pressure gauge.
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