Flowserve MX-85 Actuator - Manual (Page 45)

Flow Control
Limitorque Actuation Systems
FCD LMAIM1341-00 MX-85/140 Maintenance and Spare Parts 37
4.6.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove motor (subassembly #4). (See Section 4.1.1.)
STEP 1
a WARNING: Potential to operate while danger-
ous mechanical parts are exposed during
subassembly removal. To prevent injury, turn
off all power sources to actuator before remov-
ing worm shaft assembly. Power sources may
include: main power or control power.
Remove the four screws (#3-5) that secure the
worm shaft cap (#3-2) to the actuator housing.
1
3-2
3-9
STEP 2
NOTE: The inboard bearing (#3-5), at the end
of the worm shaft (#3-1) should remain in the
actuator housing. If it falls out while removing the
worm shaft assembly, ensure it is replaced during
remounting process.
Withdraw the complete worm shaft assembly from
the actuator housing, turning/rotating it if neces-
sary to free the worm from the worm gear. Note the
O-ring (#3-7) that is on the worm shaft assembly.
Replace at remounting.
2 3-7 (located
behind flange)
3-1
4.6.2 Remounting
STEP 3
Check that the bearing (#3-5) is seated firmly in the
actuator housing.
3