Flowserve QX Limitorque - Manual (Page 20)

Limitorque QX Electronic Actuator FCD LMENIM3314-00 – 5/11
20
STEP 9
c WARNING: Hazardous Voltage! Turn off all power sources before rewiring incoming power leads L1, L2, L3,
and control wiring in the terminal block.
Reconnect incoming power leads L1, L2, L3, and control wiring to the terminal block. Restore power source when
ready for operation.
3.2.6 Removal (Type A1/A1E Base) Actuator and Thrust Base as a Unit
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing actuator from mounting
plate. Power sources may include main power or control power. If necessary, disconnect incoming power leads
L1, L2, L3, and control wiring from the terminal block.
Actuator and thrust base removal
Remove the bolts that secure the actuator and thrust base (#10) to the mounting adapter.
STEP 2
c WARNING: Potential high-pressure vessel! Before disassembling your actuator, ensure that the valve or other
actuated device is isolated and is not under pressure.
Declutch the actuator to manual mode.
STEP 3
Rotate the handwheel until the actuator lifts off the threaded stem.
3.2.7 Remounting (Type A1/A1E Base) Actuator and Thrust Base as a Unit
STEP 4
Actuator and thrust base remounting
Declutch the actuator to manual mode. Lift actuator up to the threaded stem and carefully align threads with thrust
base threaded stem nut.
STEP 5
Rotate the handwheel to lower the actuator along the threaded stem and onto the mounting adapter plate.
STEP 6
Install the mounting bolts to secure the actuator and thrust base (#10) to the mounting adapter.
STEP 7
c WARNING: Hazardous Voltage! Turn off all power sources before rewiring incoming power leads L1, L2, L3,
and control wiring in the terminal block.
Reconnect incoming power leads L1, L2, L3, and control wiring to the terminal block. Restore power source when
ready for operation.