SECTION 5 - HYDRAULICS
5-26
3121774
Seals Head Replacing
1.
Remove all seals, backup rings and o-rings from
the piston head and all seals, backup rings and
o-rings.
2.
Install new seals, backup rings and o-rings on
the piston and the head using the proper tool.
Cylinder Inspection
1.
Inspect internal surfaces and all parts for wear,
damage, etc. If the inner surface of the tube does
not display a smooth finish, or is scored or dam-
aged in any way, replace the tube.
2.
Remove light scratches on the piston, rod or
inner surface of the tube with a 400-600 grit
emery cloth. Use the emery cloth in a rotary
motion to polish out and blend the scratch (es)
into the surrounding surface.
3.
Check the piston rod assembly for run-out. If the
rod is bent, it must be replaced.
Replace the seals on the piston. DO NOT attempt
to salvage cylinder seals, sealing rings or o-rings.
ALWAYS use a new, complete seal kit when
rebuilding hydraulic components. Consult the
parts manual for ordering information.
Mount the seals in the following order:
NOTICE
PROTECT THE FINISH ON THE ROD AT ALL TIMES. DAMAGE TO THE
SURFACE OF THE ROD CAN CAUSE SEAL FAILURE.
N.
DESCRIPTION
Qty.
1
O-RING
2
2
BEARING
2
3
BACK UP RING
1
4
SEAL
2
1.
Seal
2.
Support bearing
3.
Bearing
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