Gradall 544D (9136-4003) Service Manual - Manual (Page 20)

Parking Brake Indicator Light: Glows (red) to indicate brake is applied.
Rotating Beacon Switch (optional): This switch controls operation of rotating
beacon.
Seat Lock Release Lever: This lever unlocks and locks seat position
adjustment.
Service Brake/Inching Travel Pedal: This pedal operates the service brakes
on the front axle. It also permits slow travel speed while engine speed is kept
high for other handler functions. The further the pedal is depressed, the slower
the travel speed. Full depression of pedal causes full service brake application.
Shutdown Override Switch (Deere Engines Only): The operator may delay
a shutdown for 30 seconds by pushing the “Shutdown Override” switch. The
switch resets the shutdown timer to 30 seconds and may be used repeatedly.
However, continuously holding the “Shutdown Override” switch will not reset
the 30 second timer.
Stabilizer Control Levers: Left lever controls left stabilizer; right lever controls
right stabilizer. Push levers forward to lower stabilizers; pull levers back to
raise stabilizers.
Starting Aid Switch (optional on Cummins Engines): This switch engages
and disengages the cold-weather starting aid.
Steering Wheel: The steering wheel controls the angle of rear wheels. Turning
the steering wheel to the right causes a right turn by angling rear wheels to
left. A left turn is caused by angling rear wheels to right.
Traction-Lock Pedal: This pedal operates traction-lock valve which functions
to restore traction when a wheel spins in four-wheel drive.
Voltmeter: This gauge indicates alternator output and battery condition.
4x2/4x4 Switch: This switch engages and disengages rear-wheel drive motors.
Rear drive motors are engaged for four-wheel drive.
4x4 Indicator Light: Glows (amber) to indicate four-wheel drive is engaged.
When park brake is applied, this light will not glow.
3.2