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1936 Knapp Monarch Jack frost fan resto and a few questions  Rate Topic 
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 Posted: Wed Nov 28th, 2018 06:24 am
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Mark Wallin
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So got this one torn down.  A few things of note, wiring is simple.  Single speed windings, speed is done with a lilte coil under the base.  Im not sure if this one stops oscillating.  The gear box is always engaged and turning the peice underneath.  There is a spring loaded pin you can put in 3 spots, I assume one may keep it from oscillating even though the part still turns.
There are 2 oil holes, but the bearings are semi sealed?  No where for the oil to go but over the top of the bearing and I guess it would drip in?  The rear berinng is nice and smooth, the front has a lump in it, but not in the same spot all the time so I think there is some junk inside of it.  Gotta do a bit of cleaning, but new bearings (new Departure ENDEE-88500) popped right up in a google search.  The look like early sealed bearings, or not normally serviced bearings, even though they are not totally sealed, so im puzzled as to the point of the oil hole

The other issue is the oscillator.  Things in the gearbox seem pretty snug but the pinion shaft is pretty darn loose.  There are a lot of shims and what not on the pinoin that were under the nut.  But there is no indication of this being a clutch or any kind.  I think that whole sleeve has snapped off the bottom of the motor case, and that crap around it is epoxy.  Not sure how im gonna repair that...The pinion shaft has some slop in the sleve, and the top of the gear case where the top of the pinion shaft sits is not tihgt at all, I dont think thats a support really.  

The base will remain black, the motor case Ill probably try to do in a dull blue, I kinda like the original color so I may try to find something close.  Clean up the blades and not sure on the grill color, maybe same as the motor case, I loke a good contrast but I have that with the black base so not sure yet...

So any suggestions on repairing the case?  And whats the deal with the bearings and the lubracation?  Also thoughts on operation of the oscillator?  And im always open for color suggestions ;)























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 Posted: Thu Nov 29th, 2018 02:42 am
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Mark Wallin
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Well got everything cleaned up, light bead blast on the case and base.  The pinion shaft housing for the oscillator is definatly broken off.  So I did some research on pot metal repair and muggyweld seems to have a low temp solder that may work.  There are a bunch of 'white' metal repair and what not, but I like the low temp aspect of this one imparticular.  Anyone have any thoughts on repairing that not epoxy?





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 Posted: Thu Nov 29th, 2018 05:10 am
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Levi Mevis
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I think that fan is using Ball-Bearings, not sleeve bearings, which are actually very serviceable. 

Talk to a member here named David Allen, he can tell you more about servicing Ball-Bearings as he's serviced many of them.

Last edited on Thu Nov 29th, 2018 05:13 am by Levi Mevis

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 Posted: Thu Nov 29th, 2018 12:52 pm
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Michael Rathberger
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Here's a post on Muggy Weld that I always liked, it was a clever repair of a hard to find part.


 


http://www.afcaforum.com/view_topic.php?id=37743&forum_id=1&highlight=[highlight= #ffff88]muggy+[highlight= #88ffff]weld+dayton

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 Posted: Thu Nov 29th, 2018 02:00 pm
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Russ Huber
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Check your area or surrounding cities for a BEARING DISTRIBUTER.  They will use measuring devices to order SEALED replacement bearings of same dimensions. Brace yourself for cost in some cases based on the more uncommon dimension bearing. 


Being they are press fit carefully tap or using a puller remove them. Your can use the correct diameter deep well socket or PVC tube to tap the new bearing into place.

Last edited on Thu Nov 29th, 2018 02:04 pm by Russ Huber

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 Posted: Fri Nov 30th, 2018 02:41 pm
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Mark Wallin
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I found original bearings and ordered em.  It's still puzzleing though, there is an oil hole on top of the bearing cap in the middle.  I dunno how or why that would oil anything.  It would just drip around the bearing into the bottom of the motor case and make a mess.  And it's supposedly a sealed bearing.  There should be no service of them at all

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 Posted: Sat Dec 8th, 2018 04:38 am
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Mark Wallin
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Progress!  Got the bearings.  Definatly been sittting for a long time.  Clean though.  Not the original box however.  They were pretty rough when first playing with them, but they loosed up and are pretty smooth now.  I tried getting the side covers off an old one and pretty much destroyed it.  Only way I could see to repack these would be to drill a few holes in the covers to flush out the grease and repack with a needle tip, then RTV or someting to seal them back up.  I still don't get why there are oil holes in the case, unless they used it in a previous model then switched to sealed bearings.  
Anyway, I went onto repairing the pinion shaft housing.  I got some of the muggyweld stuff, not cheep.  But I can say it does what its supposed to do and works as advertised.  Hit the edged around the break with a round carbide tip on the dremel, put the piece in and started to heat it with a small butane torch.  This is not an ideal spot to make a repair, so its not pretty, but I dont care too much etiher as you cant see it at all unless its upsidown.  What sucks is I went to test the repair to see if I got it in straight and put  some of the gears back in to check alignemnt and well the pinion gear that goes on the oscillator shaft is toast.  Previous owner ran it with it broken for so long it just ate one side of the brass gear, so its worthess.  Unless I find a replacement or cast a new one it will never oscillate again, oh well.  

But I did try my hand at repairing that missing chip in the same area.  You can see it in some of the pics.  I wasnt gonna bother,  but I gently tapped the bend at the missing secion to try and get it back over a little, it just cracked more.  So heated it up and used the muggyweld as filler just like they show in their vids.  It helps when you have somehting under it to build up onto.  But I was able to get enough solder/snot on it that it was pretty well filled.  Belt sander took most of it down, quick dremel on the inside and a file on the outside.  I could have spent more time, filled it a bit more and really gotten it looking perfect, but I was happy with it as it was.  This isnt a show piece, missing trim and what not.  And this is a repair you wont see unless your really lookin for it.  Its dang good for spending literally about 5-10 minutes on it.  

Cage is painted, base is painted and motor housing primed and ready for pant next week.  The aluminum blade is fairly pitted.  Im trying to decide how much effort I wanna put into it haha.  I may get it smooth and paint it silver with a black center.  That should look good on the satin teal cage and motor.  Base is semi gloss black.  I gotta order up a cord and what not.  

Ill leave the gears out of the oscillator and put them in a litle baggie under the base so I dont loose them.  Who knows maybe one day ill find parts.  Were there common gears used in these things?  Anyone know about replacements?













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