Toro Greensmaster 3200 Service Manual page 151

Front and Rear Cylinder Disassembly
1. Remove oil from the hydraulic cylinder into a drain
pan by slowly pumping the cylinder shaft. Plug both
ports and clean the outside of the cylinder.
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the pivot
only. Do not close vise enough to distort the barrel.
2. Mount hydraulic cylinder in a vice. Remove dust
seal and retaining ring. NOTE: Later production lift cylin-
ders are equipped with a threaded collar. If so equipped,
remove internal collar with a spanner wrench.
3. Extract shaft, head, and piston by carefully twisting
and pulling on the shaft.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
4. Mount shaft securely in a vise by clamping on the
clevis of the shaft. Remove lock nut and piston from the
shaft. Slide head off the shaft.
5. Remove Uni–ring and O–ring from the piston. Re-
move PDF seal, O–ring, and back–up washer from the
head.
Greensmaster 3200/3200–D
Front and Rear Cylinder Reassembly
1. Coat new O–rings, Uni–rings, PDF seal, back–up
washer, and dust seal with with clean hydraulic oil.
Install Uni–ring and O–ring to the piston. Install PDF
seal, O–ring, and back–up washer to the head.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
2. Mount shaft securely in a vise by clamping on the
clevis of the shaft. Slide head onto the onto the shaft.
Install piston and lock nut onto the shaft. Tighten lock
nut.
3. Remove shaft from the vise.
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the pivot
only. Do not close vise enough to distort the barrel.
4. Mount barrel in a vice.
5. 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.
6. Secure head in the barrel with the retaining ring.
NOTE: Later production lift cylinders are equipped with
a threaded collar. To install collar, clean threads of collar
and threads in cylinder barrel. Apply medium strength
thread locking compound (e.g. Loctite #242) to threads
of collar. Install collar into barrel using a spanner
wrench. Tighten collar until snug and the outer end of the
collar is flush with end of the barrel.
Page 5 – 79 Hydraulic System (Rev. B)