Valve Adjustments; Adjust Pressure Relief Valve; Adjusting Brake Valve - HySecurity StrongArm 14F Programming And Operations Manual

V a
alVe djustMents
1. Start with the arm in the closed position.
2. Make adjustments while the pump is operating.
NOTE: All arms longer than 18' require counterweight. If this is a new installation using a factory supplied arm, and no additional
components have been added, this test is not required because the factory has already provided the correct counterweight for the
arm as ordered.

Adjust Pressure Relief Valve

1. Check that the arm is closed and loosen the lock nut on the
pressure relief valve.
2. Turn the pressure relief valve CCW 3 or 4 turns.
3. Press Open and, while the pump is operating, turn the relief
valve CW until arm moves smoothly through its entire length of
travel.
When placing the operator into service, pressure relief valve
adjustments are required! To provide instruction during
installation, a cautionary yellow tag is wire tied to every pump
pack. The same instructions are provided in this section.
Pressure relief valves differ depending on the model.
Tools Needed: 5/32" hex key, ½" and 9/16" box end wrenches.
CAUTION
Never exceed the maximum psi setting.

Adjusting Brake Valve

1. Start with the arm in the down position and the limit switches
set to trip approximately ten degrees before full close and ten
degrees before full open:
a. Loosen the relief valve by turning the adjuster screw counter-
clockwise three turns.
b. Loosen the brake valves by turning each adjustment screw
clockwise until it bottoms out then turn the same adjuster back counter-clockwise one full turn.
2. Gives the operator an "Open" command and slowly turn the relief valve adjuster screw clockwise until
the arm begins to rise smoothly. (If the operator times out, you will need to reset and start over.) This is
your relief setting; tighten the lock nut, there is no more adjustment to this valve.
3. The next valve to be adjusted is the close brake valve; which is the first valve to the left of the relief
valve. At this time the arm is now in the open position.
a. To adjust the close brake valve you will first need to turn the adjuster counter clockwise to the
top of its adjustment.
b. Give the operator a "Close" command and slowly begin turning the close brake valve adjuster
screw clockwise until the arm begins to move smoothly at the same speed as it did when you
raised it to the open position. As the arm lowers and trips the limit switch, it should smootly drift to
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StrongArm Programming and Operations
Pressure Relief
valve (Loosen
9/16-inch lock nut,
and then turn
valve adjustment
bolt.)
9/16-inch lock nut
Brake valve
Close direction
Brake valve
Open direction
MX3657-01 Rev. D ©2020