11
CD4188
5
6.
0-Ring
1 . Retainer nut
7.
0-Ring
2. Seal retainer
8. U-Ring
3.
Rod
9.
Wiper ring
4. Piston
10. Piston seal
5. Locknut
11. Tube
Figure 37. Cylinder Repair - Model 417
CYLINDER REPAIR PROCEDURE -
MODEL 417 LOADER
FOLLOW THESE PROCEDURES
TO
REPAIR LIFT
AND BUCKET CYLINDERS ON MODEL
417
LOAD-
ERS:
Remove cylinder from loader and clean thoroughly.
Tum
the end cap (1) off of
the
cylinder tube and pull
the rod assembly out of the tube.
Tum
the
locknut (5) off of the rod (3) and remove the
piston
(4),
the seal retainer (2) and the retainer nut
(1
).
Remove the seals and wash all parts in solvent and
blow dry with air. KEEP PARTS CLEAN!
Inspect
the
cylinder tube and rod
for
roughness,
scratches
or
scoring. Small scratches may be
removed with very fine crocus cloth. Replace cylinder
F-8297 (Rev. 2-94)
23
tube
or
rod if roughness is excessive. SEALS WILL
NOT GIVE SATISFACTORY SERVICE LIFE WHEN
USED WITH ROUGH CYLINDER TUBE OR ROD.
Install wiper ring (9) into the retainer nut
(1
). Slide the
retainer nut (1) onto the rod (3).
Place U-ring (8) into the seal retainer (2) with the lips
extending toward the seal retainer. Slide the 0-ring
(7) into
the
outside groove
on
the
seal retainer (2).
Slide the seal retainer onto
the
1
rod (3).
Install the
0-ring
(6) into
the
inside groove
of
the
piston (4) and
the
piston seal ,(10) into
the
outside
groove
of
the piston (4). Lubricate the
0-ring
and slide
the piston (4) onto the rod (3). Install the locknut (5)
and tighten to 150-160 lbs.-ft. torque.
Lubricate
the
seals lightly and install
the
rod assembly
into the cylinder tube. A small ring compressor may
be required. Tighten the retainer nut (1)
to
100-105
lbs.-ft. torque. Assembly is complete.
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