Model 8210/8250 Maintenance Manual Section 7. Component Procedures
Hydraulic Components Hydraulic Cylinder
Publication: 1146945/001, Revised: 25 Sep 2018 7-105
Figure 7-114. Hydraulic Cylinder
10. Press down on the top of the cylinder to
compress the cylinder.
11. Lift the cylinder up and out of the tractor
frame. Some spillage of hydraulic oil may
occur.
Cylinder Disassembly
1. Thoroughly clean the outside of the
cylinder.
2. Pull the rod out until the end of the rod
and the retaining ring are visible through
the inlet port. See Figure 7-115.
3. Insert a screwdriver into the inlet port and
slide the retaining ring into the deep
groove in the piston rod assembly.
4. Remove the rod assembly from the barrel.
5. Remove the retaining ring from the piston
rod.
6. Remove the wiper and seal from inside the
barrel assembly.
Figure 7-115. Hydraulic Cylinder Disassembly
Cylinder Inspection
1. Thoroughly clean all parts and remove all
nicks and burrs with emery cloth.
2. Inspect the inside surface of the barrel
assembly for excessive wear or scoring.
3. Inspect the outside surface of the rod for
nicks, scratches, or scoring.
Cylinder Assembly
1. Make sure all parts are cleaned and dried
thoroughly. Lightly oil all metal parts
before reassembly.
2. Install a new seal in the barrel. Install a
new wiper in the barrel with the lips facing
inward.
3. Install a new retaining ring in the deep
groove of the piston rod end.
4. Oil the outside of the piston rod and
carefully insert the rod into the barrel.
5. Push the rod into the barrel until the
retaining ring is seen through the inlet
port.
6. Insert a screwdriver into the inlet port and
slide the retaining ring into the lock
position.
7. Extend the rod to the full out position to
make sure the retaining ring is locked in
place.
Barrel
Inlet Port
Seal
Wiper
Retaining Ring
Rod
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