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ARMY TM 9-4120-381-14
NAVY EE-000- CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
4-42.
RFI FILTER.
This task consists of: Inspection
Testing
Repair
INITIAL SETUP:
Tools
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Personnel: 1
Materials:
Bulk gasket
Equipment Conditions:
WARNING
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.
2.
Open left front evaporator panel (para 4-23).
3.
Remove 22 screws (1) and top cover (2) (see Figure 4-45).
4.
Remove 10 screws (NO TAG) and bottom cover (3).
INSPECTION
1.
Check for signs of overheating or other visible damage.
2.
Verify fuses F1-F4 are 20A, 250V.
3.
Inspect fuses (para 4-43), varistors (para 4-44), area for cracks, corrosion, loose electrical terminal connections (6),
and loose mounting hardware. If wires are damaged, replace as necessary.
4.
Check RFI gasket (5) on top cover. Replace gasket if damaged.
TESTING
Check input and output voltages (208 ± 20.8 V ac) (see Figure FO-3).
REPAIR
NOTE
Repair consists of replacing fuses, or gaskets and inspecting varistors.
1.
Fuses F1-F4 (para 4-43).
2.
Varistors (para 4-44).
3.
Remove damaged gasket (5) from panel (2).
4.
Install replacement gasket (5).
4-77
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