HEATER AND AIR CONDITIONER PREVENTIVE MAINTENANCE
– 210 – Y53-6033
Regional Haul (R05/10)
Wheel and Tire Replacement
WARNING! The Anti-Lock Brake System (ABS)
is calibrated for the specific tire revolutions
per mile. Use of a tire and/or wheel size differ-
ent from that originally installed on your vehi-
cle may cause the ABS system to not function
during a hard braking event. This could cause
an accident resulting in death or serious per-
sonal injury. Consult with your Peterbilt dealer
before using a different tire and/or wheel size
than was originally installed on your vehicle.
CAUTION: No indication will be given via the
dashboard warning lights or buzzer if tires of
the wrong size are installed on your vehicle.
See the warning above for consequences of
tires of the wrong size.
Heater and Air Conditioner
Introduction
The combination heater-air conditioner provides comfort
for those in the cab through accurate control of the cab
environment in all weather conditions. Regular attention
to the items below will help you keep the heater-air condi-
tioner unit running well.
WARNING! Excessive heat may cause the
pressurized components of the air condition-
ing system to explode possibly causing death
or personal injury. Never weld, solder, steam
clean, or use a blow torch near any part of the
air conditioning system.
• If a refrigerant leak develops in the presence
of excessive heat or an open flame, hazard-
ous gases may be generated. These gases
may cause unconsciousness or death. If you
become aware of a refrigerant leak on your
vehicle have your system service immedi-
ately and observe the following precautions:
• Stay away from the hot engine until the
exhaust manifold has cooled.
