Thrust Base Disassemble (Drive 2 Option)
1. If the Thrust Base (#100) option is present, remove the Seal Retainer (#102) followed by Stem Nut (#10).
2. Remove the four Hex Head Cap Screws (#110) and the Lift Thrust Base from the housing.
Stem Nut Replacement- Thrust Base Applications
This section is only applicable to thrust base application. Occasionally the operator stem nut may
need replacing if used in a threaded stem application on rising valves
need replacing if used in a threaded stem application on rising valves
* WARNING: Possible Hazardous Voltage. Turn Power OFF before dissembling or removing the actuator from the mounting base.
This will prevent accidental start-up during service to the unit.
This will prevent accidental start-up during service to the unit.
* WARNING: Potential High Pressure Vessel. Before removing or disassembling the actuator, ensure that
the valve or other actuated device is isolated and not under pressure.
Caution: The L120-10 through 40 thrust base contains lubrication.
Ensure that EP-00 is replaced when reassembling thrust base.
the valve or other actuated device is isolated and not under pressure.
Caution: The L120-10 through 40 thrust base contains lubrication.
Ensure that EP-00 is replaced when reassembling thrust base.
NOTE: Installation and retention of o-rings and quad rings can be eased by applying a small quantity of EP grease to the ring during assembly.