Thread Number: 40452
KDI-18 Wash Arm Pin 		[Down to Last]

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Post# 598616   5/24/2012 at 06:50 (4,353 days old) by blazeword ()        

Since I was able to remove the entire pin by hand I opened up the wash arm support to see how it all went together. The pin has a knurled end where I assume it was originally pressed into the plastic housing but now that it is free it allows the weight of the wash arm to push it down through closing off the water supply path. I found a previous post from stevet detailing how the lower nylon bushing sometimes comes loose and water pressure causes it to close off the port but my bottom bushing seems secure. I am planning on using some epoxy to reattach the pin inside the plastic housing. The housing isn't cracked and when the pin in inserted it doesn't wobble. I assume the expansion and contraction of all the hot water finally caused it to come loose. I can see the marks inside the plastic housing hole where the pin was normally seated and it looks to be almost flush with the bottom of the plastic housing. I hope this fix will hold until I can get a replacement. I noticed most pictures I have found have a nylon upper bushing where the wash arm rests but mine is brass for some reason. I have posted some pics to show what I am dealing with.




Post# 598618 , Reply# 1   5/24/2012 at 06:51 (4,353 days old) by blazeword ()        

Pin dropping down closing off port.

Post# 598619 , Reply# 2   5/24/2012 at 06:52 (4,353 days old) by blazeword ()        

Pin protruding through bottom with weight of wash arm.

Post# 598620 , Reply# 3   5/24/2012 at 06:53 (4,353 days old) by blazeword ()        

Plan on securing pin inside housing so that pin is flush with bottom. This is the spacing when pin is flush.

Post# 598622 , Reply# 4   5/24/2012 at 06:59 (4,353 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
KD-18 washarm support

 combo52's profile picture

I have successfully epoxyed the shaft back into the Bakelite support housing on KA DWs before, so I would give it a try. When epoxyed in place with the washarm in place  the top of the shaft shaft should be even with the top of the washarm, let us know how it works out.
Post# 598623 , Reply# 5   5/24/2012 at 07:07 (4,353 days old) by blazeword ()        

Thanks combo! What about the bottom of the housing should the pin be flush with that as well? I wish they still had replacement parts of this available. Repairclinic.com has some old KDI-18 parts but the wash arm support has been permanently discontinued. The machine is a great one and I would like to keep it alive as long as I can.

Post# 598625 , Reply# 6   5/24/2012 at 07:12 (4,353 days old) by blazeword ()        

Pin flush at bottom?

Post# 598678 , Reply# 7   5/24/2012 at 11:20 (4,353 days old) by combo52 (50 Year Repair Tech Beltsville,Md)        
KD-18 washarm support

 combo52's profile picture

It needs to be even on top with the wash arm in place, the bottom doesn't matter so much, in fact I think it is supposed to protrude down a little.
Post# 598695 , Reply# 8   5/24/2012 at 13:09 (4,353 days old) by stevet (West Melbourne, FL)        
WASH ARM SUPPORT UPGRADE1

 There was a small pushnut retainer on the shaft of the support pin on the original design of the washarm support. You will probably do fine epoxying it in place as John mentioned. I have a few of the original black supports but no brand new ones. I think John would be a better source for them. In my 18 sitting as a spare in waiting in my garage, I have changed the washarm out to the current design used by Hobart as seen in the next 2 pics.
Not an inexpensive upgrade but will work on any machine from the 18 thru 20 series. And boy does it really wash like crazy!

Post# 598697 , Reply# 9   5/24/2012 at 13:13 (4,353 days old) by stevet (West Melbourne, FL)        
washarm support and pump housing pic 2

 Here is the pump and support. The washarm is retained by a thumbscrew and the center shaft is nearly 1/2" in outside diameter! The support is retained by 8 not 4 screws to the lower pump housing as well. No warpage of the plastic on these parts!


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