HVAC 77 9. After gap adjustment, replace the self-lock nut with a new one and tighten it to the specified torque NOTE Apply torque of 1.57 Kg-m 10.4.5 DO’S AND DONT’S FOR A/C SYSTEM Sr. NO. DO’S REASON 1 CLEAN CONDENSER DURING REGULAR SERVICE OF THE VEHICLE DIRTY CLOGGED CONDENSER RESULTS IN A/C TRIPPING AND LESS COOLING. 2 MAINTAIN PROPER REFRIGERANT LEVEL LESS REFRIGERANT RESULTS IN LESS COOLING. 3 ADD RECOMMENDED OIL ~ QUANTITY IN THE COMPRESSOR DURING REFRIGERANT CHARGING. ADEQUATE QUANTITY OF COMPRESSOR OIL PREVENTS POOR PUMPING AND PREMATURE WEARING OF INTERNAL COMPONENTS. 4 CLEAN EVAPORATOR PERIODICALLY TO REMOVE DUST AND FOREIGN PARTICLES. CLOGGED EVAPORATOR RESULTS IN LESS AIR FLOW AND REDUCED COOLING 5 ADJUST FRESH AIR AND HEATER CABLE PROPERLY TO CLOSE DAMPER’S FIRMLY. UNADJUSTED CABLE WILL RESULT IN MIXING OF HOT AIR WITH COOL AIR. 6 EDUCATE CUSTOMER ON PROPER USAGE OF A/C CONTROLS (REFER OWNERS MANUAL). PROPER USAGE OF A/C CONTROL WILL GIVE OPTIMUM COOLING. 7 ADJUST PROPER ENGINE RPM. LESS RPM WILL RESULT IN STALLING OF ENGINE AND LESS COOLING. 8 CHECK COOLANT LEVEL AND ENSURE PROPER TUNING OF ENGINE THIS WILL PREVENT OVERHEATING OF ENGINE 9 CHECK PROPER BELT TENSION. LOOSE BELT WILL SLIP AND OVER TIGHT BELT WILL RESULT IN NOISE AND PREMATURE FAILURE OF MAGNETIC CLUTCH OF THE COMPRESSOR. 10 WHEN USING HEATER AIWASY TURN ON THE A/C THIS WILL AVOID THE FOGGING
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