Peterbilt Medium Duty Trucks Operator's Manual after 1-07
Peterbilt Medium Duty Trucks Operator's Manual after 1-07
Peterbilt Medium Duty Trucks Operator's Manual after 1-07
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Operating Instructions<br />
aware of a refrigerant leak on your vehicle, have your<br />
system serviced immediately and observe the following<br />
precautions:<br />
– Stay away from the hot engine until the exhaust<br />
manifold has cooled.<br />
– Do not permit any open flame in the area. Even a<br />
match or a cigarette lighter may generate a hazardous<br />
quantity of poisonous gas.<br />
– Do not smoke in the area. Inhaling gaseous<br />
refrigerant through a cigarette may cause violent<br />
illness.<br />
WARNING! Never idle your vehicle for prolonged<br />
periods of time if you sense that exhaust fumes<br />
are entering the cab. Investigate the cause of the<br />
fumes and correct it as soon as possible. If the<br />
vehicle must be driven under these conditions,<br />
drive only with the windows slightly open. Failure<br />
to repair the source of the exhaust fumes<br />
may lead to personal harm.<br />
Heating and Air Conditioning<br />
NOTE: Keep the engine exhaust system and the<br />
vehicle’s cab ventilation system properly maintained.<br />
It is recommended that the vehicle’s<br />
exhaust system and cab be inspected:<br />
• By a competent technician every 15,000 miles.<br />
• Whenever a change is noticed in the sound of the<br />
exhaust system.<br />
• Whenever the exhaust system, underbody, cab or<br />
sleeper is damaged.<br />
NOTE: To allow for proper operations of the vehicle<br />
ventilation system, keep the inlet grille at the base<br />
of the windshield clear of snow, ice, leaves, and<br />
other obstructions at all times.<br />
WARNING! Do not stay in the vehicle with the<br />
engine running or idling for more than 10 minutes<br />
with the vehicle’s Heater and A/C ventilation<br />
system in RECIRC or at LOW FAN SPEED.<br />
Even with the ventilation system ON, running<br />
the engine while parked or stopped for prolonged<br />
periods of time is not recommended.<br />
Controls<br />
The heater and air conditioning control unit is mounted in the<br />
center dash console, below the radio. The standard control<br />
unit has four controls to regulate air flow and temperature in<br />
<strong>Medium</strong> <strong>Duty</strong> (R10/06) Y53-6008 – 39 –