Ten tips can keep fleets cool when it's hot

Omega Environmental Technologies, a distributor of aftermarket mobile air-conditioning parts and tools, offers some preventive maintenance tips that will keep a fleet's air-conditioning systems working at peak performance during summer.

• Inspect all hoses for signs of oil seepage and replace if necessary.

• Check all drive belts for crack or wear.

• Check inlet and outlet O-ring fittings for leaks and replace if necessary.

• Evacuate the system.

• Check the evaporator coil for debris and replace the intake filter if the unit has one.

• Replace all Schrader valves and check the voltage to both the clutch and the blower motor.

• Inspect and clean the condenser coil to allow proper airflow through the fins. If necessary, use a fin comb to straighten the fins for proper airflow.

• Replace the receiver-drier at least every year. The receiver-drier, which contains a desiccant that absorbs moisture that may occur, should always be the last component replaced in the HVAC.

• Inspect the oil for signs of compressor wear, moisture absorption, or other internal problems.

• Evacuate the system and recharge.