Enerpac W2000X - Page 16

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• Remove O-rings (C) from the grooves inside
the swivel assembly (B).
• Place the swivel assembly in a vise
with soft jaws. Remove the hydraulic
couplings (B1, B2 and B3) from the
swivel assembly (B).
NOTICE
For drive units equipped with
the optional TSP300 Pro Series swivel,
refer to Enerpac instruction sheet L4119
for additional disassembly instructions.
• Remove the socket head capscrews (D)
and the swivel post (F). Remove O-rings
(G) from the swivel post hydraulic ports.
•
Remove O-ring (E) from the swivel post (F).
• Firmly hold the drive unit housing (H2).
Using an appropriate pin spanner,
unscrew and remove the cylinder gland
(H9). Remove O-ring (H8) from the gland.
• At the Spigot End of the drive unit, hold
the two flat sides of the piston rod (H1)
with a spanner wrench.
• Remove the piston retaining screw (H7)
from the piston (H6).
• Remove the piston rod (H1) from the
Spigot End of the drive unit housing (H2).
• Using a suitable drift, remove the piston
(H6) from the Gland End of the drive unit
housing (H2).
• Remove O-ring (H4) from the groove on
inside of piston (H6).
• Remove seal (H5) from the groove on
outside of piston (H6).
• Remove seal (H3) from groove inside
drive unit housing (H2).
• Clean all exposed components with a
mild solvent.
• Inspect all parts for damage.
• Perform magnetic particle inspection on
the following components:
- Drive unit housing (H2)
- Piston rod (H1)
Reassembly:
NOTICE
In the following steps, coat all
O-rings and seals with silicone grease
before installation.
• Install seal (H5) in groove on outside of
piston (H6).
• Install seal (H3) in groove inside drive
unit housing (H2). Be sure that “V” side
of seal is facing toward the Gland End of
housing (H2).
NOTICE
During reassembly in the
following steps, be sure that the piston rod
(H1) is inserted through the Spigot End of
the housing (H2).
NOTICE
Do not use excessive force when
installing the piston. This may damage the
piston and sealing faces within the drive unit.
• Coat the piston rod (H1) with silicone
grease and carefully slide it through the
Spigot End opening of the housing (H2).
• Assemble the piston (H6) on the end of
the piston rod (H1). Gently tap the piston
(H6) into place against the piston rod (H1).
WARNING
Be certain that piston
retaining screw (H7) is securely tightened in
the following step. If screw is not tight, piston
rod (H1) could be ejected from drive unit
when hydraulic power is applied. Serious
personal injury could result.
• Apply Loctite 243 thread sealant to the
threads of the piston retaining screw
(H7) before installation. Tighten piston
retaining screw securely.
• Install O-ring (H8) in groove on gland (H9).
• Screw the gland (H9) into the drive unit
housing (H2) by hand, making sure that
the O-ring (H8) is not pinched or cut.
• Using an appropriate pin spanner,
fully tighten the gland (H9). Tap the pin
spanner with a suitable mallet to ensure
that gland (H9) is tightly installed.
ENGLISH