PART 4: CONTROLS AND DISPLAYS
PB1319 (CAT. NO. 5296 ) —18— 22-01691 (R02/02)
See “
Emergency Braking” for more complete information on when
and how to use your trailer brake. Or see the Index, under Brake
.
Electric Horn
Electric Horn Button
Your Model 320 has an electric horn. To sound the horn, press on the
button in the center of the steering wheel.
• At a right-hand stand-up drive station, the horn button is located on
the dash panel to the right of the steering wheel.
Air Horn
Your Peterbilt has an air horn in addition to an electric horn. Control
the air horn by pulling on the lanyard extending from the overhead
header panel.
WARNING! It is dangerous to use air-applied trailer
brakes for parking or holding a vehicle. Air system
pressure can bleed down and release the brakes. You
could have a vehicle roll-away resulting in an accident.
You or others could be badly injured. Always apply the
parking brakes for parking or holding your vehicle on
grade.
NOTE: The trailer brake is not to be used as the main
means of braking. To use this brake frequently instead of
using the foot brake will wear out the trailer brake sooner.
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