Accutronix MX Maintenance & Spare Parts Manual 130-12000 Revision B • November 2002
4-38
Flow Control Division
Limitorque Actuation Systems
Mechanical Assemblies
4.9.1 Removal
FIRST REMOVE
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove thrust base (subassembly #10) - if fitted.
4. Remove stem nut.
STEP 1
a WARNING Potential to operate while dangerous mechanical parts are
exposed during subassembly removal. To prevent injury, turn off all power
sources to actuator before removing base plate assembly. Power sources may
include: main power or control power.
Using a hex key, remove the four or eight screws (#11-5).
STEP 2
Pull the baseplate (#11-1) off the drive sleeve.
a WARNING MX-85 & 140. If handwheel worm gear assembly has previously been removed,the drive sleeve
assembly may slip and fall out of housing. Hold drive sleeve assembly in from opposite end. See Section 4.12.A & B
for optional removal & remounting.
4.9.2 Remounting
STEP 3
CAUTION
To ensure actuator is fully secured on mounting plate, ensure
baseplate (#11-1) is tightened with the following torque values on mounting
screws (#11-5):
MX-05 and 10 = 12 ft. lbs. (16 Nm)
MX-20 and 40 = 24 ft. lbs. (32 Nm)
MX-85 & 140 = 90 ft. lbs. (114 Nm)
Lightly lubricate the outside of the drive sleeve, the quad ring or seal
(#11-3), and o-ring (#11-4) before remounting baseplate.
1
2a
3
11-1
11-4
11-3
11-5
2b
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