OPERATING CONTROLS AND PROCEDURES
5540F/YB5515 OPERATOR’S MANUAL
3-20
Published 10-21-2011, Control # 055-03
Four-wheel Steering Indexing Procedure (Standard
Steering Select Switch)
Use this procedure whenever a steering mode can not be
properly selected.
Units without Crab Steering
1.
Place the steering mode selector switch in the four-
wheel steer mode.
2.
Turn the steering wheel until the rear wheels are in a
straight forward position.
3.
Place the steering selector switch in the two-wheel
steering mode and align the front steering wheels in a
straight forward position.
4.
The crane should now be properly indexed and the
steering selector switch can now be placed in the four-
wheel steer mode.
Units with Crab Steering
1.
Place the steering mode selector switch in the four-
wheel steer mode.
2.
Turn the steering wheel until the front wheels are in a
straight forward position.
3.
Place the steering selector switch in the two-wheel
steering mode and align the rear steering wheels in a
straight forward position.
4.
The crane should now be properly indexed and the
steering selector switch can now be placed in the four-
wheel steer mode or the crab steer mode.
Changing Travel Direction
1.
The crane must come to a complete stop before
changing travel direction.
2.
Move the travel select lever to the opposite travel
direction.
NOTE:
To avoid possible damage to the transmission
DO
NOT
attempt to start the engine by pushing or
towing with another vehicle. The power train does
not allow starting this way, and transmission
damage may occur.
NOTE:
The following practices could result in transmission
failure:
•
Shifting between forward and reverse while the
engine is at high speed or heavy throttle, such
as when the driving wheels are in mud or snow
– commonly called rocking.
•
Shifting to reverse or forward while operating
the engine at high speed in neutral.
•
Operating the transmission at or near “stall
speed” for more than 10 seconds at a time.
“Stall condition” is when the engine runs at
high speed while the transmission is in forward
or reverse and the drive wheels are not
moving. For example, when the wheels are
mired in deep sand or mud, or when the crane
is against a fixed barrier.
•
Continually downshifting and over-revving the
engine.
Stopping Travel
1.
Apply the service brakes and downshift as necessary to
slow the crane until it comes to a complete stop.
2.
Place the travel select lever in Neutral (N) and engage
the parking brake.
3.
Turn the ignition switch to the OFF position to stop the
engine.
4.
If the crane is parked and unattended, remove the
ignition key.
OPERATING THE OUTRIGGER CONTROLS
Standard Outriggers
To Raise and Lower the Outriggers
On cranes equipped with standard outrigger controls, the left
outriggers are controlled by the left control lever and the right
outriggers are controlled by the right control lever. See
Figure 3-44. When operating the left or right outrigger control
lever, both left or right outriggers simultaneously raise or
lower. All four outriggers may be raised or lowered
simultaneously by actuating both control levers.
1.
Determine which outriggers are to be raised or lowered;
left, right or all.
2.
To Lower
- (Figure 3-45) Run the engine at idle speed
(accelerator pedal released). Move the control lever
forward to the LOWER position and hold it in position.
Press the accelerator pedal to increase the engine
speed, which will accelerate the outward movement of
a0566
Crab Steer Mode
FIGURE 3-43
Reference Only
