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HQ-006 I&M Manual HQ-402-0606 6
10.0 Maintenance and Storage
At least once a year a check should be made of your EIM HQ Series Actuator
Disconnect all power to actuator.
Open Electrical Enclosure. Inspect and tighten all electrical connections
Visually inspect for any electrical or mechanical damage. Replace worn or damaged components.
Check lubrication consistency and levels. Fill or replace if required.
Actuators must be stored in a clean, cool and dry area. The unit shall be stored with the cover installed and the
conduit openings sealed. Storage must be off the floor, covered with a sealed dust protector.
11.0 Trouble Shooting
The following instructions are offered for the most common difficulties encounter during installation and
start-up
.
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
Motor will not Run Open in control circuit Refer to appropriate wiring diagram
and check for continuity
Insulation resistance breakdown in motor Perform Megger Test
No power available to actuator Tripped circuit breaker Reset circuit breaker
Manual Override Nut hard to turn Valve stem improperly lubricated Lubricate with grease
Actuator lubrication has broken down Clean out old grease and replace
with recommended lubricant
Valve packing gland too tight Loosen packing gland nuts as
necessary
Jammed valve Refer to valve maintenance
Valve only opens or closes Limit switch improperly set Check setting and reset if necessary
partially with motor
Manual Override Nut will not Stripped gearing Replace as necessary
Operate valve Broken handwheel shaft Replace as necessary
Broken valve stem Repair or replace as necessary
Motor runs but will not operate Stripped gearing Replace as necessary
valve