Flowserve MX Limitorque - Manual (Page 145)

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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
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5.15.1 Removal
NOTE: Before removal you must:
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling electronic components, ensure that
you are discharged of static electricity by briefly touching a grounded metal object.
1. Remove the control panel (subassembly #7). (See Section 5.1.)
2. Remove the control module (subassembly #8). (See Section 5.2.1.)
NOTE: The encoder is a sealed assembly of high-precision components and not suitable for repair. Should the encoder fail, it will be
necessary to install a factory replacement.
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
encoder assembly. Power sources may include main power or control power.
a CAUTION: To avoid accidental oil leakage when removing encoder screws (#1-36), be
careful not to remove the encoder cartridge mounting screw (#14-8). The encoder cartridge
screw is located near one of the encoder mounting screws. Accidentally removing the
encoder cartridge mounting screw could cause oil leakage into the control compartment.
Remove the encoder by locating and removing the three M4 screws (#1-36) that mount the encoder
to the actuator housing. Use a 3 mm hex key to remove the screws.
5.15.2 Remounting
STEP 2
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before remounting
encoder assembly. Power sources may include main power.
Align the three encoder mounting holes with the matching holes in the actuator housing and push
the encoder straight on to the mounting boss, carefully positioning the encoder to ensure correct
meshing with the encoder drive cartridge pinion. If needed to align gearing, declutch the actuator
and turn handwheel until the encoder gear engages with the drive cartridge pinion). Fit the three M4
screws (#1-36) and tighten using a 3 mm hex key. Do not overtighten.