Service Instructions
074985 Rev. B
October 2014
6
Section 5: General Disassembly
General Disassembly
Section 5: General Disassembly
1. If not already done, remove all operating pressure from actuator cylinder (3) or
cylinder assemblies M3 (3-10).
2. If the actuator is equipped with a M3 jackscrew, make sure that the jackscrew
(3-20) does not engage the piston rod (2-10).
3. Actuators equipped with M3HW jackscrew with handwheel option, remove hex
nut (8-30), lock washer (8-20), and handwheel (8-10).
4. Mark stop screws (1-60) left and right. Measure and record the exposed
length of the right and left stop screws (1-60). The stop screws will be
removed later in this procedure.
5. Identify each cylinder adapter (2-30) left or right and record the inlet port
locations in cylinder adapters (2-30).
6. Removed the socket cap screws (1-120) from position indicator (1-110),
yoke weather cover (6-110), and remove position indicator/yoke weather cover.
7. Remove snubber (1-130) from the housing (1-10).
8. On cylinders (3) or (3-10) and cylinder adapters (2-30), open bleed valves (2-120).
CAUTION: USE PROPER WRENCH STYLE AND SIZE
The bleed valves are 1/8 NPT and are made out of brass. Use only the correct size
wrench. Refer to Table 2 at the end of this procedure for recommended wrench style
and correct wrench size. Do not use pliers or other style adjustable wrench for bleed
valve removal or adjustment.
9. Drain the hydraulic fluid from cylinders (3) or (3-10) and cylinders adapters
(2-30) by removing pipe plugs (2-130).
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