Steering Cylinder (4Wd) - Toro Reelmaster 6500–D Service Manual

Steering Cylinder (4WD)

1. Butt & Tube Assembly
2. Teflon Seal
3. O–Ring
4. Piston
IMPORTANT: To prevent damage when clamping
cylinder barrel or rod in a vise, clamp only on pivotal
ends.
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. Plug ports and clean outside of cyl-
inder.
2. 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.
3. Grasp end of piston rod and use a twisting and pulling
motion to carefully extract piston, piston rod, and head
from cylinder barrel.
4. Securely mount piston, piston rod, and head into vise
and remove nut. Remove piston.
IMPORTANT: Do not clamp vise jaws against
smooth piston rod surface; the piston rod will be-
come damaged.
5. Remove all seals and O–rings.
Reelmaster 6500–D/6700–D
10
4
3
2
11
1
Figure 39
5. O–Ring
6. U–cup
7. Gland
8. Wiper
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9
8
7
6
5
6. Wash part in a safe solvent. Dry parts with com-
pressed air. DO NOT wipe them dry with a cloth or paper
as lint and dirt may remain.
7. Carefully inspect internal surface of barrel for dam-
age (deep scratches, out–of–round, etc.). Replace en-
tire cylinder if barrel is damaged. Inspect piston rod, and
piston for evidence of excessive scoring, pitting, or
wear. Replace any damaged parts.
8. Use a complete repair kit when rebuilding the cylin-
der. Put a coating of oil on all new seals, and O–rings.
Install the new seal and O–rings.
9. Install piston onto piston rod with O–ring seal (10) and
tighten hex nut.
10. Put a coating of oil on all cylinder parts to ease as-
sembly.
11. Slide piston rod assembly into cylinder tube.
12. Install gland.
9. Piston Rod Assembly
10. O–Ring
11. Lock Nut
Hydraulic System