cascade corporation 14J Series, Service Manual

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6921413 38
SERVICE
4.8-2
Revolving Connection Service
IMPORTANT: Make sure work area is clean and dust-free
when servicing the revolving connection.
CAUTION: Remove all burrs and paint from the exposed
revolving connection shaft surface prior to servicing the
revolving connection.
1
Remove the revolving connection from the attachment
as described in Section 4.8-1.
2
Remove the relief valve cartridge(s) from the end block.
Remove the O-rings and back-up rings.
3
Remove the two-piece seal from the revolving
connection body using a hook-type brass seal removal
tool (Cascade Part No. 674424).
NOTE: Do not scratch or damage the grooved surfaces
in the valve.
4
Remove the clamp check valve cartridges and flow
divider cartridge. Remove O-rings and back-up rings.
5
Clean all parts with cleaning solvent and inspect the
following:
• Shaft – Inspect the sealing surface of the shaft for
minor surface imperfections. Remove with 400-grit
emery paper. Sand the shaft radially (around), not
along the length. Break the edges on the outer end
of the shaft and the snap ring grooves with 400-grit
emery paper. If severely worn, replace the shaft.
• Body – Inspect the seal grooves in the body
for sharp nicks or projections. Remove minor
imperfections with 400-grit emery paper. If severely
worn, replace the body.
6
For reassembly, reverse the previous procedures with
the following exceptions:
• Install new O-rings and back-up rings on all valve
cartridges, as shown.
• Two-Piece Seals – In the revolving connection body,
install the square rubber rings first into the grooves.
Then, install the Teflon rings over the rubber rings.
NOTE: Use seal installation tool (Part No. 599512)
when installing internal seals. If seals are installed
by hand, form into 'kidney' shape to avoid sharp
bends that can cause damage.
• Lubricate shaft and body with petroleum jelly prior to
reassembly.
• Insert shaft loader into body and carefully install
shaft, displacing loader.
NOTE: Rotate body to ease installation and prevent
damage to seals.
• Tighten end block capscrews to 15 ft.-lbs. (20 Nm).
RC0482.eps
AC0044.eps
CL2849.eps
R0482.eps
Form seals into 'kidney'
shape to install
Internal Seal
Installation Tool
GA0102.eps
CAUTION: Two-piece shaft seals must
be installed dry to work properly.
Clean all traces of hydraulic fluid
and moisture from the seal grooves
inside the revolving connection
body using a non-petroleum based
electronics contact cleaner .
Clean hands thoroughly.
Revolving Connection Body
Two-Piece Seals
Teflon
Ring
Square
Rubber
Ring
CL2848.eps
Seal Removal Tool
Part No 674424
3
6