7
Disassembly
Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-03-A4 – 06/15
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c
WARNING: Hazardous Voltage. Turn power OFF before disassembling your L120-85 actuator.
c
WARNING: Potential high pressure vessel. Before removing or disassembling your actuator, ensure
that the valve or other actuated device is isolated and is not under pressure.
NOTE: Minor service may be performed with the actuator mounted on the valve or other actuated
devices. Perform more complex service with the actuator removed from the valve or other actuated
device.
NOTE: Review and familiarize yourself with the illustrated parts breakdown prior to disassembly.
NOTE: Drive 2 units (Thrust only) will maintain the thrust of a valve without the actuator mounted on
the Thrust Base. Before removing the actuator from the Thrust Base, ensure that all actuated devices
are secured to appropriate positions while actuator is removed from the Thrust Base.
7.1 Removal From Valve
1. Rotate the Handwheel to the fully CLOSED position.
2. Drive 1 applications (Refer to illustrated parts breakdown)
a. Loosen and remove customer installed Mounting Screws and Lock-washers that are holding the
actuator to the Mounting Adapter.
b. Remove Pipe Plug (piece 45) from top of actuator Housing (piece 1).
c. Lift the actuator enough to loosen Key from the Drive Sleeve (piece 25).
d. Remove Key from the Valve Stem and the Drive Sleeve (piece 25).
e. Lift actuator completely off of the Mounting Adapter or Thrust Base Assembly.
3. Drive 2 applications
a. Loosen and remove Socket Head Cap Screws (piece 110) and Lockwashers (piece 111) at the
Mounting Base of the actuator to remove the actuator from the Thrust Base Assembly.
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