I knew the original motor was toast based on the grinding sound and extreme difficulty in spinning the fan (bearings were shot beyond repair, and Eureka/Sanitaire bearings aren't the easiest to service), however, the bag, base, hood and handle were in excellent condition and I knew that 2spd Sanitaires exist, and thus my plan was to throw a 2spd Sanitaire motor into this machine and make it a sleeper.
However, it seems like the 2spd Sanitaire (QuietClean SC889) has the same part # for the motor as the single speed 7A Sanitaires -- 5435217, which means that the motor is being stepped down by some other means (maybe a stepdown board), and not thru the windings as was the case with the old OE motor. What gives? Is this an error (wrong part #) or am I missing something here?
How are modern two speed Sanitaires put together? What do I REALLY need to make this 2090A run again, which has everything but a motor?
However, it seems like the 2spd Sanitaire (QuietClean SC889) has the same part # for the motor as the single speed 7A Sanitaires -- 5435217, which means that the motor is being stepped down by some other means (maybe a stepdown board), and not thru the windings as was the case with the old OE motor. What gives? Is this an error (wrong part #) or am I missing something here?
How are modern two speed Sanitaires put together? What do I REALLY need to make this 2090A run again, which has everything but a motor?