MAINTENANCE AND SERVICING
Form 169552 / 169554 / 169555
126
Revision A
b. Remove the ten fasteners (H) that attach the
cover (J), and remove the cover.
WARNING
To avoid cuts from evaporator fins, do not
use bare hands to brush away clogs.
c. Use a vacuum or compressed air to remove dirt
from inside the unit.
d. Blow compressed air through the evaporator fins
from the blower side first (as shown). Direct the
air “straight” into the evaporator to prevent fin
damage. A nozzle extension would make this
procedure easier.
e. Repeat the previous step from the side opposite
the blowers.
f. If dirt is still present, soak evaporator in water to
loosen dirt, and then blow out with compressed
air.
g. Straighten any bent fins.
h. Re-position cover (J) and attach with ten
fasteners (H).
i. Re-attach drain hoses to drain tubes, and
secure with hose clamps (D).
7.7.6.5 A/C Compressor Protection
The compressor is protected from excessively
low and high pressures by two switches that
shut down the compressor to prevent damage to
the system.
These switches do not require any regular
servicing or maintenance, so if problems occur
and the switches are suspect, contact your
Dealer.
7.7.6.6 Compressor Servicing
a. Refer to Section 7.8.10.2 A/C Compressor Belt
Replacement for belt replacement procedures.
b. See your MacDon Dealer or your Technical
Service Manual for all other servicing
procedures
AIR
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H
J