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SETTING THE RELIEF VALVE
1.
Place a 0-15000 psi [0-1034 bar] gauge on the "A" port.
2.
Place a 0-6000 psi [0-413 bar] gauge on the "B" port.
3.
Loosen relief valve lock nut (item 26, figure 4).
4.
Rotate the relief valve knob clockwise until resistance is felt
from the spring.
5.
With the pump running, press the advance button on the
pendant to energize the "A" solenoid. Turn the knob on the
relief valve clockwise, to increase pressure, or counter-
clockwise to reduce pressure.
6.
Once required pressure setting is reached, tighten locknut
(item 26, figure 4) to lock the setting. Do not overtighten.
7.
For valve assemblies without externally adjustable "B" side
relief valve: Release the advance button on the pendant and
check the "B" port pressure gauge.
Refer to the table at the top of page 2 for the retract pressure
("B" port) setting applicable to your valve model. If the
pressure reading is not within the allowable range listed in
the table, replace the spring (item 38, figure 1).
8.
For valve assemblies with externally adjustable "B" side
relief valve: Release the advance button on the pendant and
check the "B" port pressure gauge.
Refer to the table at the top of page 2 for the retract pressure
("B" port) setting applicable to your valve model. If the retract
pressure reading is not within the allowable range listed in
the table, follow steps a through c:
a. Remove acorn nut (item 71, figure 1) using a 9/16" socket
wrench and loosen jam nut (item 76, figure 1). This will
expose the adjustment set screw (item 75, figure 1).
b. Using a 5/32" Allen wrench, turn the adjustment set
screw (item 75, figure 1) clockwise to increase pressure
or counter-clockwise to reduce pressure. To secure the
setting, torque jam nut (item 76, figure 1) to 5-6 ft-lbs
[6-8 Nm] while holding the adjustment set screw (item
75, figure 1) in place with a 5/32" Allen wrench.
c. Reinstall acorn nut (item 71, figure 1) and torque to 5-6
ft-lbs [7-8 Nm] using a 9/16" socket wrench. (Do not
overtighten as threads will strip out). Verify pressure
setting and adjust if necessary.
WARNING: To avoid possible injury, do not operate
pump with couplings uncoupled. Attach metal dust
caps to all uncoupled couplings before operation.
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