GROVE
Published 10-21-2011, Control # 055-03
3-19
5540F/YB5515 OPERATOR’S MANUAL
OPERATING CONTROLS AND PROCEDURES
3
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.
Optional Return to Center Steering Selector Switch
This switch acts the same as the standard steering selector
switch in that three different steering modes can be selected:
Two-Wheel Steer, Four-Wheel Steer and Crab Steering.
Unlike the standard steering selector switch, the tires do not
have to be aligned in a straight forward direction before
switching to a different mode. After the steering mode is
selected and the steering wheel is turned the steering mode
will automatically switch when the tires are aligned in straight
forward direction.
These modes are selected using the Steering Selector
Switches shown in Figure 3-39 and Figure 3-40.
1.
Two-Wheel Steer Mode
See Figure 3-41 for the following procedure.
The front wheels steer the crane. The rear wheels
remain in the fixed forward position. This mode must be
used for highway travel and traveling at higher speeds.
2.
Four-Wheel Steer Mode
See Figure 3-42 for the following procedure.
NOTE:
DO NOT
travel at high speed with the crane in the
four-wheel steer mode. Possible tipping may occur
when turning.
The front wheels steer in the direction that the steering
wheel is turned and rears wheels turn in the opposite
direction. This mode allows for an extremely short
turning radius. It enables the rear wheels to follow the
track of the front wheels. This is an advantage in muddy
or sandy condition.
3.
Optional Crab Steer Mode
See Figure 3-43 for the following procedure.
NOTE:
DO NOT
travel at high speed with the crane in the
crab steer mode. Possible tipping may occur when
turning.
All of the wheels steer in the same direction. This mode
permits the operator to move the crane sideways for
short distances. This feature is especially helpful in
repositioning the crane in tight areas.
p1617
Standard Steering
Select Switch
FIGURE 3-39
a1859
Optional Steering Select Switch
FIGURE 3-40
a0610
Two-Wheel Steer Mode
FIGURE 3-41
a0565
Four-Wheel Steer Mode
FIGURE 3-42
Reference Only