Enerpac XC-1400 Series, Instruction Sheet

Page: 14 / 16

14
7/32 inch
Figure 14, Relief Valve Pressure Adjustment
6. Seal the pump “B ” port with a metal plug or closed coupler.
7. Reinstall the battery on the pump.
8. Move the control valve to the “A” position.
9. Be sure that the trigger lock is in the
unlocked position.
10. Pull the trigger switch upward to start the pump motor.
While the motor is running, check the gauge reading to
determine the relief valve pressure setting. The relief valve is
factory set at 10,000 psi, +300/-50 psi [700 bar, +20.7/-3.4
bar]. However, the setting can be adjusted lower if desired.
• If the pressure setting shown on the gauge is correct for your
application, and the cylinder or tool being used, skip step 11
and go to step 12.
• If the pressure setting shown on the gauge is not correct,
readjust the setting as described in step 11.
WARNING
Never adjust the relief valve pressure setting above 10,300
psi [712 bar]. Be certain that the pressure setting does not
exceed the maximum rated pressure of the cylinder (or tool)
being used. Failure to observe these precautions may result
in failure of cylinder or tool and related components. Death
or serious personal injury could occur.
11. If needed, adjust the relief valve pressure setting as
described in the following steps:
a. Using a flat blade screwdriver, remove the rectangular
access cover from the side of the pump.
b. Place a long 7/32" Allen wrench straight down through
the opening until it engages with the socket head of the
pressure adjustment screw.
c. Rotate the control valve lever between the “A” and “B”
positions to relieve any residual pressure in the pump. Verify
that the pressure gauge indicates zero (0) psi/bar.
d. Only if pressure setting is to be decreased: Using the
Allen wrench, turn the pressure adjustment screw about
two turns counter-clockwise.
NOTICE To help ensure an accurate final pressure setting,
always start from a lower setting and gradually increase the
pressure to the final setting.
e. Pull the trigger switch upward to start the pump motor.
f. With the motor running, slowly turn the Allen wrench
clockwise to increase the pressure setting to the desired
setting (10,300 psi [712 bar] maximum). Observe the
pressure gauge to determine when this setting has been
reached.
g. After adjusting the pressure setting, release the trigger
switch to stop the motor.
h. Pull the trigger switch upward again and re-check the
pressure gauge reading.
NOTICE
If pressure is too high or too low, stop the pump and
repeat steps 11c through 11h. Note that it will first be necessary
to relieve any residual pump pressure as described in step 11c
before performing step 11d.
12. After verifying that the desired pressure setting has been
achieved, remove the Allen wrench and reinstall the access
cover.
13. Rotate the control valve lever between the “A” and “B”
positions to relieve any residual pressure in the pump. Verify
that the pressure gauge indicates zero (0) psi/bar.
14. Remove the battery pack from the pump.
15. Disconnect pressure gauge from the pump “A” port.
16. Remove metal plug or closed coupler from the pump “B”
port.
17. Reconnect hydraulic hoses to pump ports “A” and “B”.
18. Reinstall the battery pack on the pump.
9.0 TROUBLESHOOTING
The information in the Troubleshooting Guide (see next page) is
intended as an aid to help diagnose and correct various possible
problems that may occur.
For repair service, contact your nearest Enerpac Authorized
Service Center. Only an Enerpac Authorized Service Center
should be permitted to service the pump and its components.
WARNING
Failure to observe and comply with the following precautions
could result in death or serious personal injury. Property
damage could also occur.
• Never tighten or loosen hydraulic fittings while the pump
hydraulic system or connected components are pressurized.
Escaping oil under pressure can penetrate the skin, causing
serious personal injury.
• Keep hands, fingers and other body parts clear of pinch
points and moving parts when observing operation during
troubleshooting.
• To prevent accidental start-up of pump during servicing,
always remove battery pack from pump before performing
any maintenance or repair procedures.