DeZURIK
R3 PowerRac
TM
Cylinder Actuator
August 2016
Page 15
D10359
Troubleshooting
Condition
Possible Cause
Corrective Action
Actuator closes to
wrong position
Closed position stop is set
incorrectly
Adjust closed position stop.
See
OPEN AND CLOSED STOPS.
Actuator opens to
wrong position
Open position stop is set
incorrectly
Adjust open position stop. See
OPEN AND CLOSED STOPS.
Actuator will not fully
operate valve
Cylinder pressure is low
Increase cylinder pressure.
Do not exceed 100 psi (69
kPa).
Actuator is sized incorrectly
Use larger actuator
Piston seal in cylinder is leaking
Replace piston seal(s). See
ACTUATOR DISASSEMBLY
AND REASSEMBLY.
Pipeline obstruction in valve is
preventing closure
Remove obstruction
Lockable Model is locked.
Place in unlocked condition.
See LOCKABLE MODEL.
Actuator rotates wrong
direction
Air connections to cylinder are incorrect
Reverse air connections to
cylinder
