Section 6 — Operation • 35
Death or serious injury can result if the unit becomes
unstable. Properly stow the booms before raising
the outriggers.
CAUTION
Injury and property damage can result from the unit
becoming unstable. Do not operate the horizontal
outrigger function while the vertical outrigger is
deployed.
The surface that the outrigger shoe will rest on must
be rm and capable of supporting a substantial load
in a concentrated area. If necessary, place cribbing or
supports beneath each outrigger shoe to increase the
support area and load holding capability.
WARNING
Death or serious injury can result from contact with
a moving outrigger. Clear the area around the outrig-
gers before operating the unit.
If the outriggers are not visible while being deployed, a
signal person must be used to be sure the outriggers are
set safely to avoid crushing injury.
An audible warning signal alerts the operator when the
outriggers are in motion.
The outriggers have full, mid-span, and short-span ca-
pabilities, with placards installed on the outrigger beams
to aid the operator in mid-span and short-span setups
(refer to Figure 6.2).
Tailshelf Outrigger Controls
The main controls for outrigger setup are located at the
tailshelf (refer to Figure 6.1). These controls are active only
when the unit is in Outrigger mode. The unit will default
to Outrigger mode when the PTO is rst engaged. Hori-
zontal and vertical functions will operate each outrigger
as labeled. When the outrigger controls are released, the
spool in the valve will return to neutral. In order to oper-
ate the crane after setting the outriggers, the outrigger/
crane functions switch (located at the riding seat) must
be placed in the Crane position.
Riding Seat Outrigger Controls
When equipped with riding seat outrigger controls, the
outrigger/crane functions switch must be placed in the
Outrigger position to operate the outriggers. Only vertical
outrigger control is available from the riding seat.
Section 6 — Operation
CAUTION
Injury and property damage can result from abrupt
reversals in direction, starts, or stops. Operate the
controls smoothly.
Outriggers help stabilize and level the unit while it is in
use. Before operating the unit, follow the procedure in
Section 4 under Preparing for Operation. Properly set the
outriggers as described in the following section.
WARNING
Park on a rm surface before operating the unit. Set
parking brakes, outriggers must be extended as in-
structed under Outriggers. Take into consideration
pad loads on all surfaces.
It is impossible to foresee all situations and combina-
tions for set up of the unit. Establish criteria for stable
operation of the unit based on actual conditions, work
procedures, and experience. The owner and operator
bear ultimate responsibility for ensuring that the unit is
properly set up.
Outriggers
The AC45 multipurpose boom truck crane is designed
for use with a subbase and requires two sets of out and
down outriggers: one set of main out and down outrig-
gers at the rear of the truck, and one set of auxiliary out
and down outriggers at the front of the subbase. Each of
these outrigger cylinders is equipped with double-acting,
pilot operated check valves to prevent movement of the
outrigger cylinder in the event of hydraulic line failure.
The controls for the primary and auxiliary outriggers are
located at the tailshelf (refer to Figure 6.1) where each
outrigger can be viewed. The area around the control
handles is guarded to protect against unintentional move-
ment of the handles.
WARNING
Death or serious injury can result if the unit becomes
unstable. Properly set the outriggers to level the unit
before moving the booms from the rest.
Death or serious injury can result from contact with
a moving outrigger. Clear the area around the outrig-
gers before operating the unit.
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