Toro Reelmaster 5010- H Service Manual page 137

Inspection
CAUTION
Use eye protection such as goggles when using
compressed air to clean steering cylinder com-
ponents.
1. Wash all cylinder components in solvent. Dry parts
with compressed air.
2. Inspect internal surface of barrel for deep scratches,
out- of- roundness and bending. Replace if worn or
damaged.
3. Inspect head, shaft and piston for excessive pitting,
scoring and wear. Replace any worn or damaged parts.
Assembly (Fig. 84)
1. Make sure all cylinder parts are clean before as-
sembly.
2. Coat new O- rings, back- up ring and other seals with
clean hydraulic oil.
A. Carefully install O- ring, BP seal and wear ring to
the piston.
B. Carefully install back- up ring, O- ring, BS seal
and dust seal to the head.
3. Coat shaft with clean hydraulic oil. Slide head and
piston onto the shaft.
Reelmaster 5010- H
IMPORTANT: To prevent shaft damage, do not
clamp shaft surface in a vise.
4. Using a wrench on shaft flats to prevent shaft from
rotating, install lock nut. Torque lock nut 40 ft- lb (54
N- m).
IMPORTANT: Prevent damage when clamping the
steering cylinder into a vise; clamp on the clevis end
of the barrel ONLY.
5. Mount barrel securely in a vise by clamping on the
clevis end of the barrel.
IMPORTANT: When installing the head into the bar-
rel, pay careful attention to the retaining ring slot in
the barrel to insure that the piston and head seals do
not lodge in the slot.
6. Coat all internal parts with a light coat of clean hy-
draulic oil. Slide piston, shaft and head assembly into
the barrel being careful not to damage the seals.
7. Secure head in barrel by installing retaining ring.
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.
Page 4 - 101 Hydraulic System