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

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104-6 VERSALIFT VST-9000-I-E
INST
ALLA
TION
Lift Point A - Place a lifting strap around the
knuckle box. The strap should be as far away
from the lift centerline as possible, on the upper
boom side. This strap must be rated for at least
5000 lbs (2270 kg).
Lift Point B - Place a lifting strap around the
lower boom near the turret. This strap must be
rated for at least 6000 lbs (2585 kg).
CAUTION:
LIFT THE LOAD SLOWLY TO
VERIFY THAT THE LOAD IS BALANCED.
6. Install Hydraulics - Install hydraulic hoses and
ground controls (when applicable) as shown on
the hydraulic schematic section. If the unit is
equipped with outriggers or tool power at the
body, the relief valve should be removed from
the pedestal and mounted to the chassis frame,
between the pump and the outrigger control
valves.
If the unit is equipped with lower controls below
rotation, install the lower controls and ground
controls in an accessible location in accordance
with ANSI A92.2.
DANGER:
THE LOWER CONTROLS
MUST BE INSTALLED IN SUCH A MANNER
THAT THE OPERATOR IS NOT PLACED IN THE
ELECTRICAL PATH BETWEEN THE AERIAL
DEVICE AND THE GROUND.
7. Pto & Pump Installation - The PTO and pump
selection will determine the hydraulic pump fl ow
that will be produced and the speed at which
the engine must operate for proper aerial lift
performance. Insuffi cient hydraulic oil fl ow will
result in unsatisfactory speeds of operation.
Excessive hydraulic oil fl ow will reduce the ability
to control movement of the aerial lift, generate
dynamic loads, and cause elevated hydraulic
system operating temperatures. The rated
hydraulic oil fl ow to an aerial lift should never
be exceeded. The selection of a PTO depends
primarily on the transmission make and model.
Refer to the PTO manufacturer’s application for
the best results.
Engine operating speed must allow the PTO
to provide adequate pump flow. The open
center, fi xed displacement, hydraulic vane pump
provided has a straight keyed shaft with a SAE
A fl ange. This standard pump has a volumetric
effi ciency of 92 percent and pump displacement
is 2.0 in.
3 (33 cm 3 ) per revolution.
For most chassis an engine speed of 1000-1100
RPM is recommended. To calculate the engine
speed required for proper operation use the
following formulas.
Engine Speed = 231 (In
3
/Gal) X Pump Flow (Gpm) X 10,000
(Rpm) Displacement (in
3
/Rev) X Pump Effi ciency (%) X Pto (%)
Use the information given above to fi nd the
desired engine rpm. If the PTO has a 0.9:1 ratio
(90% volumetrically effi cient) and the standard
open center pump the equation would be as
follows:
Engine Speed = 231 (In 3 /Gal) X 6 (Gpm) X 10,000 = 1046 Rpm
(Rpm) 2.0 (In 3 /Rev) X 92 (%) X 90 (%)
In some cases, hydraulic tool operation may
require a fl ow less than 10 GPM (38 lpm). An
effective means of lowering the fl ow is to select
a PTO that will provide the desired fl ow at idle.
Using the throttle control to provide proper for
the tools fl ow at idle and increasing the engine
speed to allow faster boom movements when
operating the lift.
Mount the PTO according to the manufacturer
installation instructions. Refi ll the transmission
with appropriate oil. Install the hydraulic pump
to the PTO using two 1/2 in. Grade 5 fasteners.
Tighten bolts as specifi ed.
Before connecting the suction line to the oil
reservoir, fi ll the hose with hydraulic oil. On initial
start up, the pump case should be fi lled with oil
and the air bled from the pump outlet to permit
priming.
If an installation hose kit option was ordered,
use the hoses provided. The pump pressure
line is 1/2 in. hose and the suction line is a 1-1/4
in. hose. Fill the reservoir with hydraulic oil and
select Ground Controls (when applicable) during
initial pump operation. This allows pump start-up
at minimal pressure.
CAUTION:
PUMP DAMAGE WILL OCCUR
IF THE PUMP IS RUN WITHOUT HYDRAULIC OIL.
Check the following items prior to operating the
hydraulic pump.