Greensmaster 3150 Hydraulic SystemPage 4 -- 101
Disassembly (Fig. 75)
1. Pump oil out of cylinder into a drain pan by slowly
moving rod in and out of cylinder bore. Plug ports and
clean outside of cylinder.
IMPORTANT: To prevent damage when clamping
cylinder barrel in a vise, clamp only on ball joint
location.Do notclampthevise jaws against thecyl-
inder barrel or rod surface.
2. Mount cylinder in a vise by clamping vise on barrel
balljointlocation of cylinder. Use ofa vise with soft jaws
is recommended.
3. Remove both heads from the barrel:
A. Use a spanner wrench to rotate head clockwise
untiltheedgeoftheretainingringappearsinthebar-
rel opening.
B. Insert a screwdriver under the beveled edge of
the retaining ring to start the retaining ring through
the opening. Rotate the head counter--clockwise to
remove retaining ring from barrel and head.
C. Slide head from cylinder barrel and rod.
4. Grasp end of rod and use a twisting and pulling mo-
tion to carefully extract rod assembly (with piston) from
cylinder barrel.
NOTE: Piston (item 13) is not removable from cylinder
rod.
5. Remove anddiscard rodwipers (item2), seals(item
3), O--rings (item 6), back--up rings (item 5) and wear
rings (item 7) from both heads (item 4). Also, remove
seal (item10), back--upring (item 9) andwear ring (item
11) from piston.
CAUTION
Useeyeprotectionsuchasgoggleswhenusing
compressed air to dry cylinder parts.
6. Wash cylinder parts in clean solvent. Dry parts with
compressedair.Donotwipepartsdrywithpaperorcloth
towels.Lintfrom towelsin a hydraulic systemwill cause
damage.
7. Carefully inspect internal surface of barrel for dam-
age (deep scratches, out--of--round, etc). Inspect rod,
both heads and piston for evidence of excessive scor-
ing,pittingorwear. Replaceentiresteeringcylinderifin-
ternal components are damaged.
Assembly (Fig. 75)
1. Identify components fromseal kitthat areto beused
in cylinder r epair. Put a coating of clean hydraulic oil on
all new seals, back--up rings and O--r ings.
2. Install new wear rings (item 7), seals (item 3), rod
wipers (item 2), back--up rings (item 5) and O--rings
(item 6) onto both heads (item 4). Position backup ring,
seal and wear ring to the piston (item 13).
IMPORTANT: Duringcylinderassembly,paycareful
attention to the retaining ring slots in the barrel to
insure that the piston and head seals do not lodge
in the slots.
3. Coat all internal cylinder parts with a light coat of
clean hydraulicoil. Carefullysliderod assemblyinto the
barrel being careful to not damage seals on piston.
4. Lubricate head (item 4) assemblies with clean hy-
draulicoilandcarefullyslidethemontorodand intobar -
rel.
5. Secure both heads to barrel:
A. Align retaining ring hole in the head with the ac-
cess slot in the barrel.
B. Insert theretainingringhookintothe holeandro-
tate head clockwise until the retaining ring is com-
pletely pulled into the barrel and the ring ends are
covered.
C. Apply silicone sealer to barrel access slot.
Hydraulic
System
To Next Page
Loading...
