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SECTION 5 - HYDRAULICS
3121784
5-23
General Cylinder Assembly
1.
Use the proper tools for specific installation
tasks. Clean tools are required for assembly.
2.
Install new seals, back-up rings and o-rings on
the piston and the head.
3.
Fasten the rod eye in a soft-jawed vise, and place
a padded support under and near the threaded
end of the rod to prevent any damage to the rod.
4.
Lubricate and slide the head over the cylinder
rod. Install the piston head on to the end of the
cylinder rod. Loctite® 243TM and install the set
screw in the piston head. Refer to “Hydraulic Cyl-
inder Torque Specifications,”for tightening
guidelines for the piston, head and the set
screws.
Seals Head Replacing
Remove all seals, back-up rings and o-rings from the pis-
ton head and all seals, back-up rings and orings.
Install new seals, back-up rings and o-rings on the piston
and the head using the proper tool.
Cylinder Mounting
Cylinder Inspection
5.
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.
6.
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.
7.
Check the piston rod assembly for run-out. If the
rod is bent, it must be replaced.
8.
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.
N°
DESCRIPTION
Qty.
1
O-RING
2
2
BEARING
2
3
BACK UP RING
1
4 SEAL
2
Go
to
Discount-Equipment.com
to
order
your
parts