Cleaning Air Conditioning Evaporator Core - MacDon M1170NT5 Operator's Manual

2. Remove eight fasteners (A) that attach the cover to the
housing. Remove cover (B).

Cleaning Air Conditioning Evaporator Core

WARNING
To avoid cuts from evaporator fins, do NOT use bare hands to brush away clogs.
1. Remove the air conditioning (A/C) cover. For instructions, refer to
2. Use a vacuum cleaner or compressed air to remove dirt
from inside the housing.
3. Blow compressed air through the evaporator fins from
blower side (A) first as shown. Direct the air straight into
the evaporator to prevent fin damage. A nozzle extension
makes this procedure easier.
4. Repeat the previous step from side (B) opposite the
blowers.
5. If you can't feel the compressed air blowing through the
evaporator core, proceed as follows:
a. Protect blower motor (A) from water.
b. Soak evaporator core (B) with warm water using a low
pressure hose. Let soak for several minutes.
c. Blow compressed air through the core from blower
side (C).
d. Repeat the soaking procedure until air blows through
the evaporator freely.
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MAINTENANCE AND SERVICING
B
Figure 5.160: A/C Cover
Removing Air Conditioning Cover, page
Figure 5.161: A/C Evaporator Core
Figure 5.162: A/C Evaporator Core
333
A
B
A
A
B
C
332.
B
A
C
Revision A