OPERATING CONTROLS AND PROCEDURES 5540F/YB5515 OPERATOR’S MANUAL
3-18 Published 10-21-2011, Control # 055-03
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,
3rd to 4th when the crane is moving. See Shifting Gears,
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)
1. When the crane’s engine is shut off, the transmission
can be shifted into any gear without first pressing and
holding the dump switch (Figure 3-37).
2. 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 and press and
hold the dump switch.
NOTE: Do not shift the transmission to the next gear
without first pressing and holding the dump switch.
Serious damage to the transmission could occur.
3. To shift to the next gear, move the shift lever to the
desired gear position. See shift pattern in Figure 3-38.
4. When downshifting, do not over-rev the engine. Allow
the crane’s engine to slow down before pressing and
holding the dump switch and shifting to the next lower
gear.
Steering The Crane
Standard Steering Selector Switch
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 3-39.
p1621
Dump Switch Shift Lever
FIGURE 3-37
p1620
Transmission Shift Pattern
FIGURE 3-38
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