SECTION 5 - MAST COMPONENTS
31215825
5-9
Tool Use - Angled Style Fittings (continued)
5.5 HYDRAULIC LIFT CYLINDER - REMOVAL,
INSPECTION AND REBUILD
HYD R AUL I C C YL IN D E R S AR E D E S I GN E D TO H O L D
HYDRAULIC FLUID UNDER HIGH PRESSURE. ENSURE ALL
APPROPRIATE MEASURES ARE TAKEN TO RELIEVE RESID
-
UAL PRESSURE IN THE CYLINDER BEFORE DISCONNECTING
LINES.
Lift Cylinder Removal
Removal of the hydraulic lift cylinder without removing the
mast from the machine requires laying the machine on it’s
back (hood side) with the platform end on top.
1.
Remove the following components from the machine
before laying machine on it’s back:
• Rear Covers
(See Section 4)
• Batteries
(See Section 3)
• Drive Motor Cover
(See Section 3)
2.
Seal the vented cap on the hydraulic fluid reservoir by
removing the cap, covering the hole with a few layers of
plastic wrap or equivalent. Then install and tighten the
cap over the plastic wrap to prevent leakage of hydraulic
oil from the reservoir while machine is in a layed back
position.
3.
Use a forklift truck or overhead crane and carefully lay
the machine on it’s back, place a support under the mast
end, keeping mast close to level.
(See Figure 5-3.)
Step 4.
Gently push hose assembly into cou
-
pling body (see directional arrow).
Step 5.
While maintaining slight pressure on the
hose assembly, actuate the tool (see
arrow).
Step 6.
Pull on hose assembly to complete dis
-
connection.
Figure 5-3. Machine Positioned for Cylinder Removal.
1.
Be Careful of Control Components in this Area
2.
Support Mast Here - Keep Mast Approximately Level
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