General Information and Operating Instructions
PUSHBACK TRACTOR CHALLENGER550
Page 52
1-1
Jan 28/19
G. Preheater starter switch
The preheater starter switch is located on the right side of the steering column.
Figure 25: Preheater starter switch
Table 5: Switch positions
INFORMATION
As soon as the ignition is switched on, the parking lights and the rotating beacons switch on auto-
matically.
Switch positions Description
0 Ignition off.
I Ignition on. Drive position; engine is
preheated if necessary.
II Start engine.
Property of American Airlines