CC335/CC355
4.2 Preventive Maintenance Schedule
All preventive maintenance described below is based on typical operating conditions. The frequency outlined below is for
normal operating conditions and should increase if used under more sever conditions.
COOLING CIRCUIT
MONTHLY
QUARTERLY ANNUALLY
Measure and record the refrigerant pressures and temperatures of the suction line
X
Measure and record the refrigerant pressures and temperatures of the liquid line
X
Visually inspect for signs of oil or refrigerant leaks
X
After 15 minutes of operation check refrigerant level using the sight glass
X
Visually inspect all components, tubes and hoses for signs of wear and deterioration
X
Change the filter drier once a year or each time the system is opened
X
Check the opening and closing pressures of the high and low pressure switches
X
COMPRESSOR / CLUTCH
MONTHLY
QUARTERLY ANNUALLY
Visually inspect the clutch plate
X
Visually inspect the condition, tension and alignment of the compressor belts
X
Clean the compressor and clutch with steam or hot water
X
Measure the resistance and the voltage on the clutch coil
X
Check the compressor oil level after 15 minutes of operation
X
STRUCTURE
MONTHLY
QUARTERLY ANNUALLY
Visually inspect for loose parts, damaged or broken wires
X
Clean or replace the return air filters
X
Clean the condenser and evaporator drains
X
Clean the fins the evaporator and condenser coils with coil cleaner or soap and water
X
Retighten all bolts on the compressor support and the unit using recommended torque
ELECTRICAL SYSTEM
MONTHLY
QUARTERLY ANNUALLY
Check control panel operation, clean panel and thermostat sensor with air
X
Check the alternator for corrosion and inspect electrical connections
X
Visually check the alternator belt tension, check for mis-alignment and wear
X
Check the power cable at the relay plate, re-torque if necessary
X
Inspect all wires and terminals for damage and corrosion
X
Check the ventilation of the condenser and evaporator motors
X
Note:
We recommend using this table to develop a plan for routine maintenance to you A/C System
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