Grove Published 01-29-2015, Control # 512-01 2-79
TMS700E SERVICE MANUAL HYDRAULIC SYSTEM
rings. Pay attention to how each seal and ring is
installed to avoid installing replacement seals and
rings improperly.
5. Loosen and remove the locknut securing the piston.
Remove the piston from the rod.
6. Remove the O-ring from the inside of the piston.
7. Remove the wear ring and seal from the outside of the
piston.
8. Remove the head from the rod. Remove the O-rings and
the backup ring from the outside of the head. Remove
the two wear rings, seal, and wiper ring from the inside
of the head.
Inspection
1. Clean all parts with solvent and dry with compressed air.
Inspect all parts for serviceability.
2. Inspect the barrel carefully for scoring. If barrel is
scored, it must be repaired or replaced.
3. Check piston for damage. If piston is damaged,
determine if it can be repaired or must be replaced.
4. Inspect rod for straightness. Determine if it can be
straightened or must be replaced. Verify internal
passages and ports are clean and undamaged.
5. Stone out minor blemishes and polish with a fine crocus
cloth.
6. Clean with solvent and dry with compressed air any
parts that have been stoned and polished.
Assembly
NOTE: Lubricate seals and rings with clean hydraulic oil.
Make sure the gaps of the two wear rings are 180
degrees apart.
CAUTION
Before installing new seals and rings, clean all surfaces
and carefully remove burrs and nicks. Parts displaying
excessive wear or damage should be replaced.
CAUTION
When installing new seals and rings, avoid stretching
seals or scratching the grooved or gland surfaces. Make
sure parts are clean before and during assembly. Make
sure seals and rings are installed in the proper order.
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