Regional Haul Model Operator's Manual - Peterbilt Motors Company

HEATER AND AIR CONDITIONER
PREVENTIVE MAINTENANCE
particles may be removed with compressed air blown
through the core in the opposite direction of normal air
flow.
WARNING! Wear eye protection any time
you blow compressed air. Small particles
blown by compressed air could injure your
eyes.
• Check the compressor belt for condition and proper
tension.
• Check all hoses for kinks, deterioration, chafing, and
leaks. Adjust kinked or chafing hoses to eliminate
restrictions and prevent further wear.
• Check all components and connections for refrigerant
leaks. If you discover a leak, do not try to tighten a
connection. Tightening a connection may cause a
worse leak. Have a qualified technician correct the
problem.
NOTE: A leaking evaporator or condenser core
cannot be repaired; it must be replaced.
Have the air conditioning system fully serviced annually
by your Peterbilt Dealer or Authorized Service Center.
Qualified service technicians will have to evacuate and
recharge the system.
– 212 – Y53-6033 Regional Haul (R05/10)