Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
July 2020
13
Section 2: Actuator Disassembly
Actuator Disassembly
2.4.2 Remove all the piping from the M18 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 from outer end cap (7 - 80).
2.4.5 Remove hex nuts (7 - 90), with lock washers (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 VA115680 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 VA115680 sheet 2 Detail "G". Remove two split rings
(7 - 50) and one retainer ring (7 - 60) from piston rod (7 - 40).
2.4.13 Remove hex cap screws (7 -115) with lock washers (7 - 110) from inner
end cap (7 - 10).
2.4.14 Remove hex nuts (7 - 105) from hex cap screws (7 - 100).
2.4.15 Remove hex cap screws (7 - 100) with lock washers (7 - 110) from inner end cap
(7 - 10) and housing (1 - 10).
2.4.16 Remove inner end cap (7 - 10) off of piston rod (7 - 40).
NOTE:
The piston rod (7 - 40) removal as outlined in step 2.4.17 is only required when the piston
rod is being replaced or when the drive module is to be disassembled.
2.4.17 Remove piston rod (7 - 40) from the drive module.
2.5 M18 Pump Disassembly
NOTE:
Refer dwg. VA-ED-005-1120 for details.
!
WARNING
Disconnect Operating Pressure. If not already removed disconnect all operating pressure
from actuator power cylinder.
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