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Proper clearance between front plate and electromagnetic friction pulley. NO YES Compressor fixing elements are in good conditions. Check and tighten compressor screws and bolts to the Serviceable electromagnetic friction. Check whether failure is due to mechanical or electrical Regular compressor oil level. Serviceable compressor. Check oil level and refill if required. Drain out system and replace compressor. Check clearance, disconnect compressor if required NO YES NO YES NO NO 4.2 NO YES Serviceable electromagnetic friction power system. Check electric system. STRANGE NOISE WITH FRICTION CONNECTED 4.3 STRANGE NOISE WITH FRICTION 46 CAB AIR-CONDITIONING D AILY |