Flowserve MX-85 Actuator - Manual (Page 80)

Flow Control
Limitorque Actuation Systems
72 MX-85/140 Maintenance and Spare Parts FCD LMAIM1341-00
Table 5.5 – Encoder Drive Sleeve Speed (rpm)
Drive Sleeve
Speed I.D.
1 2 3 4 5 6 7
50 Hz. 15 22 33 43 65 110 143
60 Hz. 18 26 40 52 77 131 170
NOTE: MX units with Drive Speed I.D. 1 or 2 require an optional input gear. Reference the Output RPM block located
on the MX nameplate and cross-reference in table above to determine the unit Drive Speed I.D.
5.7.1 Removal
First Remove
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling electronic com-
po-nents, ensure that you are discharged of static electricity by briefly touching a grounded metal object.
1. Remove Accutronix control panel (subassembly #7). (See Section 5.1.)
2. Remove 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 car-
tridge mounting screw could cause oil leakage
into the control compartment. (See Picture 1a.)
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. (Reference Picture 1a to locate
screws (#1-36); note important cautionary state-
ment discussed with Step 1 and 1a).
1
1a
1-36
14-8
1-36 1-36