Toro Reelmaster 5100-D Service Manual page 150

1. Barrel
2. Nut
3. Uni-ring seal
4. Piston
5. Grasp the clevis end of the shaft and use a twisting
and pulling motion to carefully extract the piston, shaft,
and head from the barrel.
6. Securely mount the clevis end of the shaft in a vise
and remove the lock nut from the piston end of the shaft.
Remove the piston. Slide the head off of the shaft.
7. Remove and discard all seals and back-up rings.
8. Wash the parts in a safe solvent. Dry the parts with
compressed air. DO NOT wipe them dry with a cloth or
paper as lint and dirt may remain.
9. Inspect the internal surface of the barrel for damage
(deep scratches, out-of-round, etc.). Inspect the head,
shaft and piston for evidence of excessive scoring,
pitting, or wear. Replace any defective parts.
10. To install the two piece Uni-ring piston seal:
Mowing Circuit Repairs
Figure 100
5. O-ring seal
6. Rod seal
7. O-ring seal
8. Back-up ring
A.Soak the seal rings in hot water. The hot water will
soften the rings allowing then to stretch over the
piston.
B. Apply clean hydraulic oil to the black inner ring
and Install the ring into the seal groove on the piston.
C. Apply clean hydraulic oil to the purple outer ring
and install the ring into the same groove over the
black ring.
11. Put a light coating of hydraulic oil on all other new
seals and back-up washers. Install the new seals and
back-up washers. Install the head onto the piston rod.
Install the piston onto the shaft and tighten the lock nut.
12. Put a heavy coating of hydraulic oil on all cylinder
parts to ease assembly. Slide the shaft assembly and
head into the barrel. Install the retaining ring to secure
the assembly in the barrel. Make sure "sharp edge" of
retaining ring faces OUT. Make sure snap ring is fully
installed into mating groove.
Rev. A
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9. Head
10. Dust seal
11. Retaining ring
12. Rod
®
Reelmaster 5100-D