Author Topic: MAH4000 thumping and banging  (Read 609 times)

Offline def

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MAH4000 thumping and banging
« on: September 30, 2013, 05:54:07 PM »
So, some of you may recall that I have resurrected an old Maytag Neptune 4000 with a rebuilt control board, new wax motor and some appliance paint.

So far, all is well. However, when the machine goes into the dewatering cycle, there is some thumping and banging as the tub spins up. Of course, if it is severe, the machine slows and goes into the load redistrubtion mode. Soon, the machine is at full spin RPM, spinning away normally without any drama.

Questions are as follows;

1- Are there some shock absorbers/dampers that might need replacement to keep things under better control?
2- Assuming that the tub bearings will need replacement at some point, is bearing replacement a difficult job?
3- Are there some references that detail the bearing replacement?

Thank you in advance for helping me keep my hot rod Neptune working. It is the best residential washer I have ever used (maybe I need to get out more?).
 
def
I used to repair RADAR then they discontinued vacuum tubes. Pity

Offline GUnderhill

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Re: MAH4000 thumping and banging
« Reply #1 on: September 30, 2013, 07:55:54 PM »


Hello Fellow Neptune Owner,

1.  There are two shock absorbers (strut assembly's) mounted to the outer tub in the back, one on each side along with weights on the outer tub to help balance it out.   My MAH3000AWW is a 99' model and has the original struts.  I've attached a Maytag parts list you might find helpful.  There are repair manuals on the web, but it might take some digging around.  I would check to make sure there isn't excessive play between the bearings and shaft.  The banging could be indicative of the inner tub striking the outer tub.  Or it could just be a normal occurrence with an out of balance load.

2.  Bearing replacement is not that difficult, depending on your skill level.  There is a plethora of Youtube videos on the topic.  I just replaced my bearings, spacer, and put on a new spinner support with the revised lip seal.  Use caution when replacing the seal to make sure you install it correctly.  Don't ask how I know that....

3.  See number 2.

Good luck in keeping it running.

George


Offline def

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Re: MAH4000 thumping and banging
« Reply #2 on: September 30, 2013, 10:08:26 PM »
Thank you George.

73

def
I used to repair RADAR then they discontinued vacuum tubes. Pity

 

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