62-12119
4
REAR OF UNIT
1. Remove the back access panel on the back of the unit to
gain access to the evaporator components.
2.
Evaporator Coil
. Refer to
.
a. Clean with low pressure water. If the evaporator coil is noted
to have green patina or white powder, it is recommended to
wash the coil with cleaner P/N NU4371-88.
Refer to the
for
Evaporator Section Cleaning.
b. Straighten any fin damage using the correct fin comb (8 fins
per inch).
c. Check for any signs of leaks or corrosion and repair / replace
as necessary.
NOTE
For certain cargos exposed to fumigation, it is recommended
after the trip to carefully wash all internal parts in the evapo
-
rator section to avoid potential corrosion.
Figure 1 Evaporator Coil
3.
Evaporator Motor and Stator
. Refer to
a. Slowly spin the evaporator fan blade and feel for any signifi
-
cant bearing drag. Replace the bearing if it is bad.
b. Check that the evaporator motor clamp brackets are secured.
If not accessible, refer to step 17.