ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
EVAPORATOR COIL. This task covers inspection and service.
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can KILL Shutting the unit off at the control panel
does not disconnect unit power.
(1) Disconnect air conditioner input power at source, and
a. Check for accumulated dirt (see fig. 4-50) Clean if dirt is evident.
b. Check fins for dents, bent edges, or any condition that would block or distort airflow. Straighten all damaged fins
with a plastic fin comb. If a leak or major damage is evident, refer to General Support Maintenance.
Compressed air used for cleaning purposes will not exceed 30 psi (2 1 kg/cm ). Do not
direct compressed air against the skin Use goggles or full face shield.