Versalift VST-9000I-E100, Руководство по обслуживанию и установке

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103-6 VERSALIFT VST-9000-I-E
SER
VICE PROCEDURES
If overheating occurs, check the main system
relief pressure as described in “Adjustments” in
this section.
B. Verify that the lift functions according to the
control instructions. Consider all hydraulic and
electrical control systems including optional
equipment and audible or visual warning
systems. Refer to “Boom Actuation Speeds” in
this sect ion, to verify the boom function speeds.
Adjust the pump fl ow by varying engine speed
as required.
C. Verify the holding valves are functioning proper ly,
per instructions in “Adjustments” section.
D. Check the clearance between moving parts
during operation. Observe the knuckle and turret
areas through the complete range of motion with
a load in the platform. In particular, observe
the pivot link, main links, and upper and lower
booms at the knuckle. Repair, replace, or adjust
components to maintain clearance.
E. Inspect unit for hydraulic system leakage
including all hydraulic components, hoses,
and fi ttings. Replace leaking hoses or fi ttings
with parts meeting or exceed ing manufacturer
specifi cations.
F. With the hydraulic cylinders fully extended,
inspect cylinders for rough or nicked cylinder
rods. Refer to this section for cylinder inspection
procedures.
4. MAINTENANCE
A . Rotation Bearing - To lubricate the rotation
bearing the lift must be rotated 360° stopping at
90° intervals and applying grease through the
zerk at the top of the turret plate. This procedure
will evenly distribute the grease on the inner ring.
Rotation Bearing Grease Fittings
Figure 3
All fi berglass components and the fi berglass to steel
epoxy bonded joint are considered critical. These
components and joints must be repaired or replaced
before further use.
D. Inspect the insulating fi berglass upper and lower
boom insert for cracks, nicks, or evidence of
fatigue. Damage to fi berglass components
not only affects the structural integrity but also
degrades the insulating property. For additional
information refer “Care of Fiberglass Booms”
in this section. Inspect the fi berglass to steel
epoxy bonded joints located at both ends of the
lower boom insert and at the knuckle end of the
fi berglass boom.
E. Inspect the platform for cracks, in the mounting
ribs, fl oor, and the fl ange around the top. Repair
any cracks or replace the platform if required.
The fi rst step in successful platform repair is to
analyze the damage and determine the cause.
Cracks in the gelcoat or outer surface of the
platform are easily repaired. Damage to the
fi berglass structure can be more serious and
should be carefully evaluated before attempting
to repair the platform. If the top lip, mounting
fl ange or the bottom of the platform is damaged,
repair should not be attempted.
F. Check winch line for any signs of damage,
deterioration, wear and dirt contamination. Avoid
using rope that shows signs of aging and wear. If
in doubt, destroy the used rope. No type of visual
inspection can be guaranteed to accurately and
precisely determine actual residual strength.
When the fi bers show wear in any given area,
the rope should be replaced. Continued use and
normal wear in the line gradually diminishes the
ultimate breaking strength and lowers the factor
of safety.
3. OPERATIONAL CHECKS
Perform operational checks on the following items.
A. If so equipped, verify proper engagement of
the PTO without excessive noise or vibration
during operation. Refer to the PTO manufacturer
installation manual if adjustment is necessary.
Verify the hydraulic pump is functioning
properly without excessive noise, vibration, or
overheating. Noise in a hydraulic pump can
indicate cavitation or the intake of air into the
suction line. This could result from a low level
of oil, loose suction line fi tting or operating in
temperatures too cold for the type of oil used.