Emerson EIM HQ Series User Manual

May 2020
Installation, Operation and Maintenance Manual
VCIOM-15204-EN Rev. 1
20
Section 19: Troubleshooting
The following instructions are offered for the most common difculties encounter during
installation and start-up.
Table 1.
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
Motor will not run
Open in control circuit
Refer to appropriate wiring
diagram and check for continuity
Insulation resistance break-
down in motor
Perform Megger Test
No power available
to actuator
Tripped circuit breaker Reset circuit breaker
Handwheel 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
partially with motor
Torque switch setting too low Check setting and reset if necessary
Limit switch improperly set Check setting and reset if necessary
Torque switch is properly
set, but actuator torques
out in mid-travel, open
or closed direction
Damaged or bent valve stem Refer to valve maintenance
Valve packing too tight Refer to valve maintenance
Jammed valve
(obstruction in line)
Refer to valve maintenance
Handwheel will not
operate valve
Stripped gearing Replace as necessary
Clutch shifter position or
malfunction
Move shifter, or replace as necessary
Broken handwheel shaft Replace as necessary
Broken valve stem Repair or replace as necessary
Motor runs but will not
operate valve
Stripped gearing Replace as necessary
Clutch shifter position or
malfunction
Move shifter, or replace as necessary
Broken handwheel shaft Replace as necessary
Section 19: Troubleshooting
Troubleshooting

Emerson EIM HQ Series Specifications

General

Brand	Emerson
Model	EIM HQ Series
Category	Controller
Language	English