Re: 24v Dessalator motor stops under pressure

Duane Siegfri


By the way, to check if it's the pulley wheel, put it back together and stay next to the high pressure pump.  When the grating noise starts you'll be able to tell if it's the bendix bearing.  Your symptoms sound exactly like my issue, which was solved by changing to a solid pulley (no bearing).  

Another way to check if it's the bearing:  take the pulley off the HP pump that the 240V motor drives and compare how it rotates in both directions to the one from the 24 V motor.  It should turn freely in one direction (holding the inside hub still and rotating the outer wheel), and lock up in the opposite direction.  Be sure to have the direction of rotation correct when you remount the pulleys.


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