Turn the key switch on the ground controls to
select the desired control station. If power does
not come on, make sure both emergency STOP
buttons (ground and platform) are pulled out and
the main power disconnect is plugged in.
The control microprocessor will perform self-
diagnostics to test the operating system. After
several seconds, the DISPLAY PANEL window
will read:
Verify that the control status indicator LED is lit.
If the control status indicator LED is not lit or is
flashing, the outrigger buttons will not work. A
flashing control status LED indicates that one or
more of the booms is raised and needs to be
stowed. Refer to Figure 3-1 and Figure 3-4.
Extend the outriggers manually or using the
AUTO LEVEL button. When the boom is leveled
properly, a buzzer will sound and two LEDs at
each OUTRIGGER button and the LED at the AUTO
LEVEL button will be lit.
Auto Level: Press and hold the EXTEND and
AUTO LEVEL buttons at the same time.
Manual Level: Extend the two outriggers
closest to the trailer coupler first. Lower each
pair of outriggers by pressing the EXTEND button
and the two appropriate OUTRIGGER buttons at
the same time.
Figure 3-4. Outrigger Controls
NOTE: The safety interlock system prevents all
boom operations if the boom is not level
or if one or more outriggers are not
supporting the vehicle load.
Verify that the auto level indicator LED is lit. If
the auto level indicator is not lit, the boom may
not be level.
Pull the latch release on the boom travel latches,
raise the latch handle and swing the latch U-bolt
down. Refer to figure 3-5.
Figure 3-5. Boom Travel Latch
Manual Brake Release
The brake release is located in the engine
compartment. Refer to Figure 3-6.
To release brakes:
Depress the black knob.
Pump the red knob 3-5 times to release brakes.
Activate drive function on the platform control panel
to resume normal brake operation.
Figure 3-6. Manual Brake Release