Disassembly Of Handwheel Constructions (Sizes 80-130); Reassembly (Sizes 60-130); Parts Ordering - Emerson Fisher 585C Series Instruction Manual

585C Actuator
October 2013
9. To remove the actuator stem (not shown), loosen the stem connection (key 12) and pull the actuator stem out the
top of the sleeve assembly (key 104).
10. Remove the sleeve by screwing it out of the sleeve assembly (key 104).
11. Unscrew the seal bushing (key 110) to inspect the O-rings (keys 9 and 27).

Disassembly of Handwheel Constructions (Sizes 80-130)

WARNING
Refer to the WARNING at the beginning of the Maintenance section (Sizes 60-130) in this instruction manual.
To disassemble 585C piston actuators sizes 80-130 (with handwheel) for maintenance, perform the following
procedures (figure 10):
1. Be sure that all pressure is out of the cylinder and valve body.
2. Remove all tubing lines to the positioner.
3. Remove the cap screws (key 2) on the underside of the cylinder adapter (key 101) and remove the cylinder (key 1).
4. Remove the piston nut (key 4), then use a mallet to remove the piston (key 3) from the piston connector (key 107).
5. Remove the cap screws (key 127) and cylinder adaptor (key 101).
6. Remove the cap screws (key 128) and remove the spacer (key 102), being careful not to lose the key (key 144).
7. Remove the locking pin (key 131), disconnect the stem connector (key 12) and pull out the actuator stem.
8. Remove the pointer (key 129) and turn the sleeve out of the sleeve assembly (key 104).
9. Remove the cap screws (key 128) holding the gear case (key 103) to the yoke (key 6).
10. Lift the gear case (key 103) to expose the handwheel assembly.

Reassembly (Sizes 60-130)

When reassembling the 585C piston actuator with side-mounted handwheel, adjust the setscrew (key 125) to
eliminate play in gear bearings. When properly set, lock with key 126.
When reassembling the actuator after the piston nut (key 4) has been removed from the piston connector (key 107),
clean the threads of the piston nut thoroughly and apply thread sealant to the threads. Tighten the piston nut securely
to a torque of 237 NSm (175 lbfSft) for size 60 actuators, 1290 NSm (950 lbfSft) for size 68, 80, and 100 actuators, or
2070 NSm (1530 lbfSft) for size 130 actuators.

Parts Ordering

When corresponding with your Emerson Process Management sales office about this equipment, refer to the serial
number found on the actuator nameplate (key 21). Also, specify the complete 11-character part number from the
following Parts List when ordering replacement parts.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.
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Instruction Manual
D102087X012