Toro 04384 Service Manual page 133

Disassembly (Fig. 69)
1. Pump oil out of cylinder into a drain pan by slowly
moving rod in and out of cylinder bore. Plug ports and
clean outside of cylinder.
IMPORTANT: To prevent damage when clamping
cylinder barrel in a vise, clamp only on ball joint
location. Do not clamp the vise jaws against the cyl-
inder barrel or rod surface.
2. Mount cylinder in a vise by clamping vise on barrel
ball joint location of cylinder. Use of a vise with soft jaws
is recommended.
3. Remove both heads from the barrel:
A. Use a spanner wrench to rotate head clockwise
until the edge of the retaining ring appears in the bar-
rel opening. Insert a screwdriver under the beveled
edge of the retaining ring to start the retaining ring
through the opening. Rotate the head counter--
clockwise to remove retaining ring from barrel and
head.
B. Grasp end of rod and use a twisting and pulling
motion to carefully extract rod assembly (with ball
joint end head) from cylinder barrel. Remove non--
ball joint end head assembly from other end of barrel.
NOTE: Piston (item 13) and ball joint end head (item
14) are not removable from cylinder rod.
4. Remove and discard seals, back--up rings, wear
rings and O--rings from non--ball joint end head. Also, re-
move seals (items 9 and 10) and wear ring (item 11) from
piston.
CAUTION
Use eye protection such as goggles when using
compressed air to dry cylinder parts.
5. Wash cylinder parts in clean solvent. Dry parts with
compressed air. Do not wipe parts dry with paper or cloth
towels. Lint from towels in a hydraulic system will cause
damage.
6. Carefully inspect internal surface of barrel for dam-
age (deep scratches, out--of--round, etc). Inspect rod,
both heads and piston for evidence of excessive scor-
ing, pitting or wear. Replace entire steering cylinder if in-
ternal components are damaged.
Greensmaster 3250--D
Assembly (Fig. 69)
NOTE: The seal kit includes several O--rings, backup
rings and wear rings that cannot be accessed on the
Greensmaster 3250--D steering cylinder due to cylinder
design.
1. Identify components from seal kit that are to be used
in cylinder repair. Put a coating of clean hydraulic oil on
all new seals, back--up rings and O--rings.
2. Install new seal, wiper, back up ring and O--ring onto
non--ball joint end head (item 4). Position backup ring,
seal and wear ring to the piston (item 13).
IMPORTANT: During cylinder assembly, pay careful
attention to the retaining ring slots in the barrel to
insure that the piston and head seals do not lodge
in the slots.
3. Coat all internal cylinder parts with a light coat of
clean hydraulic oil. Carefully slide rod assembly into the
barrel being careful to not damage seals.
4. Lubricate non--ball joint end head (item 4) assembly
with clean hydraulic oil and carefully slide it onto rod and
into barrel.
5. Secure both heads to barrel:
A. Align retaining ring hole in the head with the ac-
cess slot in the barrel.
B. Insert the retaining ring hook into the hole and ro-
tate head clockwise until the retaining ring is com-
pletely pulled into the barrel and the ring ends are
covered.
C. Apply silicone sealer to barrel access slot.
Page 4 - - 101 Hydraulic System