Enerpac Products UNI-LIFT M - Manual (Page 6)

6
10.3 Periodic Inspection and Maintenance
Perform the following inspection and maintenance procedures
every 30 days or more often if needed:
• Wipe down and visually inspect the actuator. Check for
damage, such as cracked, broken or chipped parts.
• If not done recently, top off the grease in the actuator housing.
Use the grease fi tting(s) provided on the side of the actuator.
Refer to sections 10.0, 10.1 and 10.2 for additional information.
• Inspect the load screw threads and lubricate them if needed.
Refer to sections 10.0, 10.1 and 10.2 for additional information.
Note: More frequent load screw lubrication may be required
for the rotating style actuators. Since the load screw on these
actuators does not translate through the gearbox as it turns,
the load screw threads are not lubricated by grease from the
gearbox during normal operation.
• Check the input shaft end plate screws, the housing cap
screws and all mounting bolts for correct tightness. Retighten
as required.
• Check the alignment of the load screw to the load. The load
should be centered on the axis of the load screw and motion
should be parallel to the load screw. Misalignment will cause
premature wear and possible failure.
• Check that the power output shafting is aligned with respect to
the input shaft of the actuator. Binding during rotation will cause
premature wear.
Note: When the actuator(s), shafting, and gearboxes are properly
coupled together in a system, it should be possible to rotate the
shafts by hand and fully extend the unloaded actuator(s).
11.0 TROUBLESHOOTING
The Troubleshooting Guide (Refer to table 2 on next page) is
intended to help you diagnose and correct various possible
problems. Only qualifi ed technicians should troubleshoot and
repair the Uni-Lift
® actuator. For repair service, contact the
Authorized Enerpac Service Center in your area.
WARNING: Use extreme caution during troubleshooting
procedures. Always lockout power before performing
any inspection, maintenance, lubrication, adjustment
or repair procedures on the actuator or any associated power
transmission equipment. Be absolutely certain that the prime
mover cannot be remotely or automatically started. Make sure
the load is properly supported before the actuator brake or other
holding devices are removed.