Toro Sand Pro 2040Z Service Manual page 69

7. Taking care to not scratch or damage the head, re-
move O- ring, back- up ring, dust seal and rod seal from
the head.
8. Discard all removed seals.
CAUTION
Use eye protection such as goggles when using
compressed air to dry cylinder components.
9. Wash cylinder parts in clean solvent. Dry parts with
compressed air. Do not wipe parts dry with paper towels
or cloth. Lint in a hydraulic system will cause damage.
10.Carefully inspect internal surface of barrel for dam-
age (deep scratches, out- of- round, etc.). Inspect rod
and piston for evidence of excessive scoring, pitting or
wear. Replace steering cylinder if internal components
are worn or damaged.
Assembly (Fig. 32)
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 new piston seal and O- ring to the
piston.
B. Carefully install new rod seal, back- up ring,
O- ring and dust seal to the head.
Sand Pro 2040Z
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Clamp on the shaft clevis ONLY. Use
of a vise with soft jaws is recommended.
3. Mount shaft securely in a vise by clamping on the cle-
vis of the shaft.
A. Coat shaft with clean hydraulic oil.
B. Slide internal collar and then head onto the shaft.
C. Install piston onto the shaft and secure with lock
nut. Torque lock nut to 40 ft- lb (54 N- m).
D. Remove shaft assembly from the vise.
IMPORTANT: Prevent damage when clamping the
cylinder barrel into a vise; clamp on the clevis end
of the barrel ONLY. Use of a vise with soft jaws is re-
commended.
4. Mount barrel securely in a vise by clamping on the
clevis end of the barrel.
5. Coat all internal cylinder parts with a light coat of
clean hydraulic oil. Slide piston, shaft and head assem-
bly into the barrel being careful to not damage the seals.
6. Secure head in barrel with internal collar. Use span-
ner wrench to tighten collar.
Page 4 - 39 Hydraulic System