MAINTENANCE AND S ERVICING
Air Conditioning Condenser
The air conditioning condenser should be cleaned daily with compressed air. More frequent cleaning may be
necessary in severe conditions.
Cleaning the condenser can be done at the same time as the radiator, oil cooler, and charge air cooler. Refer to
Maintaining Engine C ooling Box, page 358.
Air Conditioning (A/C) Evaporator Core
The /A/C eva
porator should be checked annually for cleanliness. If the A/C system produces insufficient cooling, a
possible ca
use is c logged evaporator fins. Fins will clog up from the side opposite the blowers. The evaporator is
located ins
ide the heating air conditioning unit under the cab.
Removing A
ir Conditioning (A/C) Cover
DANGER
To avoid bodily injury or death from unexpected
startup of the machine, always stop the engine and
remove the key from the ignition before leaving the
operator’s seat for any reason.
1. Loosen the clamps (A) on the two drain hoses and pull
the hoses off the /A/C drain tubes.
Figure 5.43: HVAC System
2. Remove
the eight screws (A) tha t at tach t he cover (B)
and re
move the c over.
Figure 5.44: HVAC System
Cleaning Air Conditioning (A/C) Evaporator Core
WARNING
To avoid cuts from evaporator fins, do NOT use bare hands to brush away clogs.
147649 329 Revision A
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