OPERATING CONTROLS AND PROCEDURES CD15 OPERATOR MANUAL
3-12 Published 3-30-2018, CTRL 636-05
2. Depress and hold the brake pedal down.
3. Select either the Forward (F) or Reverse (R) travel
position with the travel direction lever (Figure 3-18). Pull
the handle back and then move it up or down to select
the travel direction.
The back up/outrigger alarm at the rear of the carrier will
sound while traveling in reverse.
NOTE: The crane has no axle suspension. Traveling at
high speeds, especially on rough roads, can create
a bouncing effect that can result in loss of control.
Personal injury, death and property damage could
result. Reduce speed if bouncing occurs.
4. Start out traveling from a stopped position in 1st speed.
Travel speed may be shifted from 1st to 2nd, 2nd to 3rd
when the crane is moving. See Shifting Gears (Travel
Speed) below. Avoid operating at too high of gear
selection when moving a heavy load, as this may cause
“lugging” on the engine. Use a lower gear when moving
a heavy load; higher gear when moving a lighter load.
Selecting the correct travel speed will prolong
engine life.
Shifting Gears (Travel Speed)
The transmission used on this crane is not an automatic
transmission. The gears and clutches will not shift
automatically. Each gear range must be selected manually.
1. Up shifting to the next gear (travel speed) may be done
at any engine speed, while the crane is in motion, but
first ease up on the accelerator pedal.
NOTE: The transmission is equipped with a speed sensor
that protects certain transmission shifting functions.
The speed sensor is connected to a warning alarm
(under instrument panel). If a speed sensor signal
is not received by the transmission electronic
control unit (ECU) on power up, the ECU inhibits
the selection of 4th gear. This is intended to
indicate a faulty sensor or wiring and all speed
protection is lost. If the signal is lost after power up,
4th gear will not be selectable until the power is
turned off.
2. When down shifting, do not over-rev the engine. Allow the
crane to slow down before shifting to the next lower gear.
Down shifting is subject to speed limitations. If the speed is
too high a repeated double beep of the alarm is sounded and
will continue until the speed drops below the limit or down
shift is selected.
Steering the Crane
The crane can be operated in three steering modes: Two-
Wheel Steer, Four-Wheel Steer and Crab Steer. These
modes are selected using the steering selector switch shown
in Figure 3-20.
Before selecting different steering mode, all tires must be
aligned in a straight forward position. If they are not, the
steering may not index properly. Should this happen, follow
the instructions later in this section for indexing procedures.
The steering modes are selected using the Steering Selector
Switches shown in Figure 3-20.
1. Two-Wheel Steer Mode
See Figure 3-21 for the following procedure.
The front wheels steer the crane. The rear wheels
remain in the fixed forward position.
CAUTION
Avoid Crane Damage!
Do not engage the parking brake while the vehicle is
moving. Damage to the crane can occur.
Disengage the parking brake before driving. Damage to
the crane can occur.
FIGURE 3-20
8837-2
Steering Select Switch
a0610
Two-Wheel Steer Mode
FIGURE 3-21
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