Cool Top 9
11 Maintenance
Component
Item
Possible
reason
Period
5,000 km 35,000 km
Annual or
100,000 km
Compressor
Compressor belt Wear Change
Belt tension (it is important that the belt is al-
lowed to cool before re- tensioning)
Loose tension Check/Repair Check/Repair
Idle pulley Noise/Blocked Change
Automatic belt tightener (if present) Noise/Blocked Change
Tightening bolts Loose fastening Check/Repair
Compressor Noise/Blocked Check/Repair
Compressor pulley Clutch engagement Check/Repair
Evaporator and Condenser
Drier filter Poor efficiency Change
Condenser fin Dirty/Leakage Check/Repair
Evaporator fin Dirty/Leakage Check/Repair
Condensation drain water Water inside vehicle Check/Repair
Centrifugal blower or axial fan Noise/Blocked Check/Repair
Others
Internal temperature Poor A/C efficiency Check/Repair
A/C system pressure test Poor A/C efficiency Check/Repair
Integrity of wiring connections No work or intermit-
tent operation
Check/Repair
Status of refrigerant pipes and fittings A/C systems empty
Poor A/C efficiency
Check/Repair
Refrigerant R134a charge A/C systems empty
Poor A/C efficiency
Refill
Oil compressor Oil removed during
charging of the refri-
gerant
Refill
Tightening control Blocked Check/Repair
Tbl. 04: Maintenance
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