Service Instructions
124843E Rev. C
August 2015
11
Section 2: Actuator Disassembly
Actuator Disassembly
2.3.28 Housing (1-10) vent check assembly removal as follows:
2.3.28.1 G01, G2 and G3 housing (1-10) unscrew and remove one vent check
assembly (13) from the front of housing (1-10).
2.3.28.2 G4 through G10 housing (1-10) unscrew and remove two vent check
assemblies (13) from the front of housing (1-10).
2.3.29 The following items do not need to be removed from their assembled locations
unless being replaced by new items: Two yoke bearings (2-40 and yoke pin
thrust bearing 2-10).
2�4
M11 Hydraulic Override Cylinder Disassembly
NOTE:
Review Section 2 steps 2.1.1 through 2.1.3 General Disassembly before proceeding with
M11 Hydraulic Override Cylinder Disassembly.
WARNING: DISCONNECT OPERATING PRESSURE
If not already removed disconnect all operating pressure from actuator power cylinder.
2.4.1
Place the M11 pump control knob (20-320) in the auto position.
NOTE:
Control knob (20-320) is located in front and at the bottom of the M11 pump manifold
(20-10). Using a means of capturing the hydraulic fluid that will be lost during the follow-
ing steps. Use a bucket, tub, and large container, etc.
2.4.2 Remove all the piping from the M11 override cylinder outer end cap (7-80) and
inner end cap (7-10).
2.4.3
Mark and record location of the ports on outer end cap (7-80) and inner end cap
(7-10).
2.4.4 Remove NPT pipe plug or optional SAE O-ring plug (7-120) from outer end cap
(7-80).
2.4.5 Remove hex nuts (7-90), with lockwashers (7-95), from tie bars (7-20).
2.4.6 Remove outer end cap (7-80) from cylinder (7-70), and tie bars (7-20).
2.4.7 Unscrew and remove tie bars (7-20) from inner end cap (7-10).
2.4.8 Remove cylinder (7-70) from inner end cap (7-10), piston (7-30) and piston rod
(7-40).
2.4.9 Refer to assembly drawing sheet 2 Detail "G". Remove two split ring halves (7-
50) and one retainer ring (7-60) from piston rod (7-40).
2.4.10 Remove piston (7-30) from piston rod (7-40).
2.4.11 Remove O-ring seal (8-70) from piston rod (7-40).
2.4.12 Refer to assembly drawing sheet 2 Detail "G". Remove two split rings (7-50) and
one retainer ring (7-60) from piston rod (7-40).