Customer Support 7 days a week

Welcome Guest! You can not login or register.

Notification

Icon
Error

Options
Go to last post Go to first unread
ckspeed  
#1 Posted : Sunday, November 24, 2013 7:37:23 PM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

I have an older Maytag LAT8820BAW, with the Orbital transmission, that had stopped agitating and had a burnt smell (rubbery like), the spin cycle appeared to work okay but seemed a bit slow, maybe.

I removed the front cover and also watched underneath, it appeared the driven pulley was not turning during the agitate cycle, but the motor was spinning. I gave the transmission a little push and it took off and ran fine. Several cycles afterwards it worked okay, agitate and spin. The belts are original and looked quite worn, so I replaced both with new.

Immediately after changing the belts, the agitate cycle worked great, however when the washer goes into spin cycle, it starts to spin then the motor overloads and trips out. I did observe a small amount of smoke coming from the motor when it tripped off. It acts like either it needed the belt to slip, or the slipping belt was masking another problem, but it worked with the old belts. I haven't swapped the old belts back on, but might do so just to try it. So...I don't know what to do at this point, just look at the motor, or is something else failing?

I'd appreciate any advice on this oldie but a goodie (so far). Thanks! :)
Sponsor
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
fairbank56  
#2 Posted : Monday, November 25, 2013 4:55:57 AM(UTC)
fairbank56

Rank: Advanced Member

Groups: Expert
Joined: 10/16/2012(UTC)
Posts: 3,806

Was thanked: 7 time(s) in 7 post(s)
Tilt the machine back and rotate the center pulley clockwise by hand. This should release the brake and allow the transmission and basket to freely rotate. If that is ok, I would check the motor mounting. This consists of two plates, springs and rollers. The motor must be able to move back and forth freely. If it's gummed up or otherwise malfunctioning, it will need to be cleaned up or replaced. Also check that the water pump pulley freely rotates in either direction. This is a common point of problems in these washers.

Eric
ckspeed  
#3 Posted : Monday, November 25, 2013 7:14:40 AM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

Rotating the pulley by hand does allow the basket to rotate. I haven't checked the mount, slides, etc. yet, but will in a while. It seemed to move freely while changing the belt though.

Is the belt, motor, or ?? supposed to slip while starting a spin cycle? Or should the motor just be able to handle the load and slowly start rotating?

Thanks!
fairbank56  
#4 Posted : Monday, November 25, 2013 2:07:15 PM(UTC)
fairbank56

Rank: Advanced Member

Groups: Expert
Joined: 10/16/2012(UTC)
Posts: 3,806

Was thanked: 7 time(s) in 7 post(s)
When it first goes into spin, the initial torque on the motor forces it to slide to the rear, loosening the belt so that it can slip. Then as the inertia of the tub is overcome, the motor is pulled forward by the springs which increases belt tension.

Eric
ckspeed  
#5 Posted : Monday, November 25, 2013 7:06:14 PM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

Okay, here's what I found.

The driven pulley is free both directions with no apparent drag or binding. The pump rotates freely both directions and pumps very well with the old belt or without the main drive belt connected. The motor slide is free, clean, well lubricated, and moves stop to stop very easily.
ckspeed  
#6 Posted : Monday, November 25, 2013 7:07:20 PM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

With the old main drive belt installed, when the unit goes into spin cycle the motor slips constantly, motor current is running at 6.4A using a Fluke clamp on ammeter at the motor.

With the new main drive belt installed, when the unit goes into spin cycle, the motor does not slip the belt nearly as much (hard to tell), motor current is running at 35A. :eek:
ckspeed  
#7 Posted : Monday, November 25, 2013 7:10:32 PM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

I noticed the centrifugal switch operation comes into play when starting, manually actuating that switch always gets me 35A, even with the belt disconnected.
ckspeed  
#8 Posted : Monday, November 25, 2013 7:12:27 PM(UTC)
ckspeed

Rank: Member

Groups: Registered
Joined: 11/24/2013(UTC)
Posts: 6

I suspect the motor has failed. Does anyone have a wiring diagram/service manual with amperage or resistance checks for the motor?

Suggestions?

Thanks!
Users browsing this topic
Forum Jump  
You can post new topics in this forum.
You can reply to topics in this forum.
You can delete your posts in this forum.
You can edit your posts in this forum.
You cannot create polls in this forum.
You can vote in polls in this forum.