Thread Number: 81325
/ Tag: Vintage Automatic Washers
Pulley Modification - Risks? |
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Post# 1053575 , Reply# 1   12/8/2019 at 09:50 (1,594 days old) by Unimatic1140 (Minneapolis)   |   | |
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Hi Coreyare, I have done this on two machines using a VFD, here are the threads I created about them:
1958 General Electric Filter-Flo 1978 Maytag Washer Soup-up I have heard that the Whirlpool belt-drive's suspension can't handle the higher spin speeds like a GE or Maytag can, so it will take some experimentation. Also remember if just you just change the motor pulley the agitation speed will greatly increase which may be too harsh on the clothing. |
Post# 1053623 , Reply# 2   12/8/2019 at 18:43 (1,594 days old) by Yogitunes (New Jersey)   |   | |
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Post# 1053657 , Reply# 4   12/9/2019 at 07:02 (1,593 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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I stepped up the spin speed of a 1968 super capacity WP built washer to 700 RPM spin speed by changing only the clutch pulley around 30 years ago and used this washer as my daily driver for around 25 years.
The problems, The machine wanted to walk if the load was only slightly unbalanced, we put up with it and were able to continue using the washer but had to wash loads of similar weight clothing etc.
It is not so much the suspension system that makes this speed increase difficult of a WP BD washer. It is other factors like there is no really effective damper, there is no ballast ring on the wash basket and the way the bearing are mounted high above the bottom of the basket allows too much flex in the basket post and the center post and the the base-plate it self.
Having an out-of-balance switch or not will make little or no difference as 1/2 of all WP BD machines were built without them [ including all commercial versions ] as the vibration issues do not occur till the basket is over 500 RPMs and there is never any real swinging of the mechaisim at that speed or the machine would already be in the next room. The OOB switch was only on about 3/4 of the KM versions of these washer just to give Mrs. Homemaker something to do, it never severed any purpose, we must have removed at least a few thousand of them back when these washers were in about every other home.
John L. |