Hydraulic
System
Rev. E
Reelmaster 6500-D/6700-D Hydraulic SystemPage 4 - 85
Disassembly (Fig. 54)
IMPORTANT: Prevent damage when clamping the
cylinder’s barrel into a vise; clamp on the clevis
only. Do not close vise enough to distort the barrel.
1. After removing cylinder, pump oil out of cylinder into
a drain pan by SLOWLY moving rod and piston in and
out of cylinder bore.
2. Plug ports and clean outside of cylinder.
3. Mount cylinder in a vise so piston rod end of cylinder
is tilted up slightly. Do not close vise so firmly that cylin-
der tube could become distorted. Loosen gland.
4. Remove gland retaining ring.
5. Grasp end of piston rod and usea twisting and pulling
motion to carefully extract piston, piston rod, and head
from cylinder barrel.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vise.
6. Securely mountpiston, piston rod, andhead into vise
and remove nut.
7. Remove piston.
8. Remove all seals and O-rings.
9. Wash parts in a safe solvent. Dry parts with com-
pressedair.D O NOT wipe them dry with a cloth or paper
as lint and dirt may remain.
10. Carefully inspect internal surface of barrel for dam-
age (deepscratches, out-of-r ound, etc.). Replace entire
cylinderifbarrelisdamaged.Inspectpiston rod,andpis-
ton for evidence of excessive scoring, pitting, or wear.
Replace any damaged parts.
Assembly (Fig. 54)
1. Use a complete repair k it when rebuilding the cylin-
der. Put a coating of oil on all new seals and O-rings.
Install the new seal and O-rings.
2. Install piston onto piston rod with O-ringseal (item9)
and tighten hex nut.
3. Put a coating of oil on all cylinder parts to ease as-
sembly.
4. Slide piston rod assembly into cylinder tube.
5. Install gland and retaining ring.
