Engine: Refrigeration AC

1. A premature wear of the pulley end motor shaft bearing, but normal wear of the pulley end compressor crankshaft main bearing
2. B premature wear of both motor shaft bearings and both compressor crankshaft main bearings due to belt slippage
3. C premature wear of both the pulley end motor shaft bearing and the pulley end compressor crankshaft main bearing due to overloading
4. D normal wear of the pulley end motor shaft bearing, but premature wear of the pulley end compressor crankshaft main bearing

Tip: press A-D to answer