Toro ProCore Processor Service Manual page 57

5. Mount rod securely in a vise by clamping vise on the
flats of the pivot. Remove lock nut (item 14) and carefully
slide piston and head from the rod. On offset cylinder, re-
move spacer (item 16) from rod.
IMPORTANT: When removing seal components, be
careful not to scratch or damage piston or head.
6. Remove and discard wear ring (item 1), seal (item 2)
and O--rings (items 3 and 12) from piston.
7. Remove and discard O--ring (item 6), backup ring
(item 7), wiper (item 10) and seal (item 11) from the
head.
Inspection
CAUTION
Use eye protection such as goggles when using
compressed air
1. Wash all parts in solvent. Dry parts with compressed
air.
2. Inspect internal surface of tube for deep scratches,
out--of--roundness and bending. Replace if worn or
damaged.
3. Inspect rod, piston and head for excessive pitting,
scoring or wear. Replace any worn or damaged parts.
Assembly (Fig. 22)
1. Coat new backup ring, wiper, seals and O--rings with
clean hydraulic oil.
IMPORTANT: When installing seal components, be
careful not to scratch or damage piston or head.
2. Install backup ring (item 7), O--ring (item 6), seal
(item 11) and wiper (item 10) to the head.
ProCore Processor
3. Install O--rings (items 3 and 12), seal (item 2) and
wear ring (item 1) to piston.
IMPORTANT: Do not clamp vise jaws against rod
surface. Protect rod surface before mounting in
vise.
4. Mount rod securely in a vise by clamping vise on the
pivot end of the shaft. On offset cylinder, slide spacer
(item 16) onto rod. Carefully slide head assembly and
piston assembly onto the rod.
5. Thread lock nut (item 14) onto rod. Torque lock nut
to value shown in Figure 22.
6. Remove rod assembly from vise.
IMPORTANT: Prevent damage when clamping the
tube into a vise; clamp on the pivot end only.
7. Mount tube in a vise so that the rod end tilts up slight-
ly.
IMPORTANT: When installing the head into the
tube, pay careful attention to the retaining ring slot
in the tube to insure that the backup ring does not
lodge in the slot.
8. Coat all internal lift cylinder parts with a light coating
of clean hydraulic oil. Slide rod assembly into tube being
careful not to damage the seals.
9. Secure head in tube by installing retaining ring (item
8):
A. Align retaining ring hole in the head with the ac-
cess slot in the tube.
B. Insert the retaining ring hook into the hole and ro-
tate head clockwise until the retaining ring is com-
pletely pulled into the tube and the ends are covered.
C. Fill retaining ring slot in cylinder tube with silicone
sealant after retaining ring is installed.
Page 4 - - 29 Hydraulic System