TM 5-3810-306-10
Table 2-1. Control Panel Controls and Indicators (Cont’d)
Key
Control or Indicator
Function
30
HEATER Control switch
PULL - Turns cab heater on.
PUSH - Shuts cab heater off.
31
AIR TEMP Switch
HI - Turns cab heater
circulating fan on high
speed.
LO - Turns cab heater
circulating fan on slow
(low) speed.
32
Steering Wheel
Turn clockwise to steer
front wheels to right. Turn
counterclockwise to steer
left.
33
Horn Pushbutton
Depress to sound horn.
34
Turn Signal/Four-Way
Pull lever up to light
Flashers Control
right-side turn signals.
lever and switch
Push lever down to light
left-side turn signals.
Push down small switch
behind lever to light four-
way flashers.
35
Swing Lock Control Lever
Push lever to engage
mechanical swing lock to
prevent boom superstructure
rotation.
Pull lever to release
mechanical swing lock.
36
Swing Brake Pedal
Depress pedal to apply swing
brake and slow/stop crane
superstructure rotation.
2-7
