TM 9-2350-247-20-1COMPRESSOR OPERATION TOO NOISY (M548A1)—Continued 0102 003Y1. Check for woodruff key or channel wear in either pulley (1) orshaft (2) (WP 0499 00).2. Are woodruff key or channels showing signs of wear?YESNO3YN1. Replace compressor, if pulley, shaft,or woodruff key is damaged(WP 0489 00).2. Verify no faults found.4Y1. Check drive pulley (1) for snug fit on shaft (2).2. Is drive pulley (1) snug on shaft (2) (WP 0499 00)?YESNO4YN1. Replace compressor, if pulley turnson shaft (WP 0489 00).2. Verify no faults found.0102 00-3
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