OPERATION AND TROUBLESHOOTING GUIDE
Power unit won’t lift load
If there is not enough oil in the unit, you will not be able to
operate the actuator.
•Gear pump might not be priming.Loosen the relief valve,
replace relief valve (torque to 22Nm) and retry unit.
•Air being introduced in system
If air is being introduced in the system, the gear pump might
have some difficulty priming. Listen for distinctive cavitation
sounds from pump and verify all hydraulic hoses and fittings for
proper sealing.
Cylinder won’t hold in place (drift down)
•Check valve on unit might leak
Remove check valve, wash with brake cleaner or varsol, air
blow to clean out any debris, reinstall check valve (torque to
22Nm) and retry unit
The poppet on the two-way solenoid valve might have jammed
in place. Replace valve (torque to 22Nm) and retry unit.
•If unit is an Option 3
If your unit has a manual activation valve, on the return port
there is an orifice to prevent cylinder to come down too quickly.
Orifice might have some debris.
•If unit is an Option 12 or 24
Verify that the solenoid starter operates the directional valve.
Operate actuator back and forth, and make sure it works in
both directions
. If only one direction is working, replace
directional valve.
The motor will not stop running
•Solenoid starter stays on
Low battery or poor ground connection has caused the solenoid
starter to weld on. Replace solenoid starter and check battery
and ground.
•Low battery or poor ground
A bad electrical ground or poor battery performance will cause
the motor to generate more heat. Verify battery and ground
for good performance.
•Relief valve remains open
If the relief valve has been misadjusted or a debris has stuck in
it, this will generate a lot of heat in the oil. Remove relief valve,
wash with brake cleaner or varsol, air blow to clean out any
debris, reinstall (torque to 22Nm).
•Excessive heat from electrical motor
A bad electrical ground or poor battery performance will cause
motor to generate more heat. Verify battery and ground for
good performance. If these two points have been verified and
motor still generates heat, do not overrun the motor. Consult
Eagle Hydraulic
