1-18 tranny or pump problems????

[akronman]

My 1975 Frigidaire GM 1-18----trips the breaker in a split second whenever the motor kicks in, so I removed it and cleaned and checked that out entirely, and even took apart the centrifugal switch and managed delicately to finally get it back together again. The motor and centrifugal switch seems fine. I left the belt off and tested agitation(CCW) and spinout/pump, CW, all seems fine with motor. And I tried high and low speed, too, in both directions, I really did re-assemble everything right and the motor seems fine. So I tried cranking various wheels by hand with the belt off, agitator up/down is fine, clutch/tub spin seems fine, but when I try hand cranking the pump, it only moves about 10 degrees in either direction. Seized pump? Should I check various plastic spring-loaded wheels first, or directly remove and inspect the pump? Motor back on with belt, and again the pump pulley moves a hair and stops everything.

Coolest machine on earth, despite my worst paint job, so I gotta get her up and running again.

 

[cfz2882]

does sound like something jammed in the pump or possibly one of the bearings for
the pump shaft as failed(Been nearly 30 yrs since i had a 1-18 fully apart,but i
kinda remember the pump shaft had ball bearings)any growling noise heard before
the problem occured?

 

[joelippard]

It sounds like from your description that you tried checking the different rollers to make sure they all spin freely.  If this is the case and it's just binding in the pump/driveshaft then it certainly would seem something is going on in there.  I would say before you go to the trouble of taking the pump apart, take the hoses loose from it first and see if you can peer into the larger ports to see if something is in there blocking the impeller.  Take some pics for us and tell us what you learn.

 

[philr]

If you don't already have the service manual, have a look at today's Doctrine Dispenser!

 

[combo52]

Locked Up 1-18 Pump ?

It does sound like there may be some foreign object blocking and locking the main pump impeller. 1-18 pump[s have tight clearances and can block and jam easily, yet this doesn't happen often because of the pump protector to trap heavy objects. I would try Phil s suggestion before taking the pump apart.