Versalift VO-452-MHI, Руководство оператора

Страница: 33 / 50

4-5 39049-01 01/17 VERSALIFT VO-452/455/460-MHI
OPERA
TION
while an operator is working aloft.
Note: The operation of an outrigger interlocking device
(s) does not assure aerial device stability. It serves
only to remind the operator that the outriggers have
not been deployed.
The controls for operating the outrigger/boom interlock
include a detented control selector and a control valve.
These controls are usually mounted in the ground
control panel similar to the arrangement shown in
Figure 4.2. ANSI A92.2 standards require that the
outrigger control valve be located where the operator
can watch each outrigger raise and lower as the control
valve lever is activated.
Lowering the Outriggers With an Outrigger/Boom
Interlock System:
To lower the outriggers select
“ground controls” with the control selector. Then
operate the outriggers as described previously. Select
“lift controls” with the control selector in order to begin
operating the booms.
Retracting the Outriggers With an Outrigger/Boom
Interlock System:
The booms must be stowed before
the interlock system will allow the outriggers to be
retracted. Stow the booms as described in this
section, “Storing the Aerial Lift”. Select “ground
controls” with the detented control selector. Then raise
the outriggers as described previously.
Ground Control Panel With an Outrigger/Boom
Interlock System
Figure 4.2
HYDRAULIC TOOL OPERATION AT THE GROUND
(Optional)
- The aerial lift can be equipped with open-
center or closed-center hydraulic tools that operate
at 3000 PSI (211 kg/cm 2 ) and 10 GPM (38 LPM) at
the ground controls. A pressure and flow limit valve
is optional. Select outrigger operation at the ground
controls. Then connect the hydraulic tool hoses to
the tool power outlets (quick-disconnect couplings)
and activate the tool power valve by pulling the tool
power valve knob “out”. The other aerial lift controls
will not respond while the hydraulic tools are being
operated. To disconnect the hydraulic tools, the tool
power valve must be turned “off” so that the pressure
in the system is relieved. This is done by pushing the
tool power valve knob “in”. Then the tool hoses can
be disconnected safely and easily from the tool power
outlets (quick-disconnect couplings). The tool power
controls are shown in Figure 4.3.
WARNING:
FAILURE TO RELIEVE
PRESSURE TO THE TOOL PORTS BEFORE
CONNECTING OR DISCONNECTING THE
HYDRAULIC TOOL HOSES MAY RESULT IN A
HIGH PRESSURE HYDRAULIC OIL SPRAY. THIS
SPRAY OR MIST CAN PUNCTURE OR BECOME
EMBEDDED BENEATH THE SKIN OR
CONTAMINATE THE EYES. THESE CONDITIONS
REQUIRE IMMEDIATE MEDICAL ATTENTION.
Tool Power Controls
Figure 4.3
LOWER CONTROL OPERATION
DANGER:
DEATH OR SERIOUS INJURY
MAY RESULT IF CHASSIS BECOMES
ENERGIZED. DO NOT OPERATE THE AERIAL
DEVICE WHILE CREATING A PATH TO THE
GROUND.
The Lower Controls are located on the turret as shown
Figure 4.4.
CONTROL SELECTOR LEVER - The detented control