Operating instructions

TM 11574A-OI
2-17
IV.
OPERATING CHECKS
2-12. Before, During, and After Operation Checks
WARNING
Beware of unexpected starting of the fans motors. The unit may cycle the fan motors as
control requirements dictate.
Table 2-2. Before, During, and After Operation Checks
Interval Item Action
EXTERIOR
Before Cargo Doors  Inspect hardware for bent or broken door release handles.
Before Rear Doors  Inspect hardware for bent or broken door release handles.
Before Refrigeration Unit  Check refrigeration unit for security.
 Install and secure loose or missing mount bolts.
Before Evaporator Fan  Check for dirt or grease on evaporator fan or fan deck and clean if
necessary.
Before Evaporator Coil  Check evaporator coil for cleanliness or obstructions.
 Wash with fresh water.
Before Defrost Drain Pans
and Lines
 Check defrost drain pans and drain lines for obstructions and clear if
necessary. Wash with fresh water.
Before Condenser Coil  Check condenser coil for cleanliness.
 Wash with fresh water.
Before Control Box  Open control box door. Check for loose electrical connections or
hardware.
Before Electrical Cables  Check electrical cable for cuts, deep abrasions, burned or discolored
wiring.
Before Moisture-Liquid
Indicator
 Check color of moisture-liquid indicator.
Before Compressor  Check oil level in compressor sight glass.
Before Condenser/
Evaporator Fans
 Check rotation of condenser and evaporator fans.