Disassembly (Figs. 51 and 52)
Remove the oil from the cylinder by slowly pumping
Assembly (Figs. 51 and 52)
1.
1. Make sure all parts are clean before reassembly.
the cylinder shaft while holding the cylinder over a drain
pan. Plug both ports and clean the outside of the cylin-
der.
2.
oil.
Coat new seal kit components with clean hydraulic
A. Install wear ring and seal with loader on the pis-
ton.
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the cap end
only. Do not close vise enough to distort the barrel.
B. Install O--ring, back--up ring, and seal on the
head.
2.
Mount lift cylinder in a vice. Use of a vise with soft
jaws is recommended.
C. Install O--ring to groove in rod.
3.
Usingaspannerwrench,rotateheadclockwiseuntil
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
theedgeoftheretaining ringappears inthebarrelopen-
ing. Insert a screwdriver under the beveled edge of the
retainingringtostarttheretainingringthroughtheopen-
ing. Rotate the head counter--clockwise to remove re-
taining ring from barrel and head.
3.
Mount shaft securely in a vise by clamping on the
clevis or eye of the shaft. Use of a vise with soft jaws is
recommended.
4.
Extract shaft, head, and piston by carefully twisting
and pulling on the shaft.
A. Coat shaft with clean hydraulic oil.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Protect shaft surface before mount-
ing in a vice.
B. Carefully slide head onto the shaft. Install wiper
onto shaft and into head.
C. Install piston and nut onto the shaft. Torque nut
from 60 to 75 ft--lb (82 to 101 Nm).
5.
clevis or eye of the shaft. Remove lock nut and piston
from the shaft. Slide head off the shaft.
Mount shaft securely in a vise by clamping on the
D. Remove shaft from the vise.
6.
ton. Remove O--ring,back--upring, seal,and wiper from
the head. Remove O--ring from rod.
Remove wear ringandsealwithloader fromthepis-
IMPORTANT: Prevent damage when clamping the
hydraulic cylinder into a vise; clamp on the cap end
only. Do not close vise enough to distort the barrel.
4.
5.
draulic oil. Slide piston, shaft, and head assembly into
the barrel being careful not to damage the seals.
Mount barrel in a vice.
CAUTION
Coat all internal parts with a light coat of clean hy-
Use eye protection such as goggles when using
compressed air to dry cylinder parts.
6.
Secure head in barrel by installing retaining ring.
Align retaining ring hole in the head with the access slot
in the barrel. Insert the retaining ring hook into the hole
androtateheadclockwise untilthe retaining ring iscom-
pletely pulledintothebarrelandthe ringends arecover-
ed.
7.
pressed air. Do not wipe parts dry with paper towels or
cloth. Lint in a hydraulic system will cause damage.
Wash parts in clean solvent. Dry parts with com-
8.
Carefully inspect internal surface of barrel for dam-
age (deep scratches, out--of--round, etc.). Inspect shaft,
head, and piston for evidence of excessive scoring, pit-
ting, or wear. Replace entire cylinder if internal compo-
nents are found to be worn or damaged.
Greensmaster 3150
Page 4 -- 77
Hydraulic System (Rev. E)
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| Document Type | Service Manual |
| Language | English |
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