Spare part for Kity 1637

[Froggy]

Hi All,

I'm looking for a this pulley http://www.probois-machinoutils.com/en/ ... hings.html for my Kity PT. I can't get one anywhere. The company who are advertising this say they can no longer supply them either. Does anyone know where I might be able to get one please? I know the whole Kity - Scheppach story and don't hold out much hope for a new one, but I thought one of you might have a broken down old Kity pt at the back of the workshop with this pulley attached. :roll: I can always hope :lol:

Cheers, Froggy.

 

[blackrodd]

As you say, a most unlikely part to find, hopefully someone will be able to help.
Is you'rs broken or worn and possible to repair?
Someone put me onto this French firm (below) for Kity K5 belts and they had some obsolete bits, maybe worth a try.
HTH Regards Rodders

http://www.ebay.co.uk/itm/370646209018? ... EBIDX%3AIT
Or these,
http://bivenmachinerysales.co.uk/

 

[Froggy]

Thanks Rodders. I have tried the first link already and no joy. I'll call Biven now.

 

[ColeyS1]

What model number planer is it off?

Coley

 

[Froggy]

It's a Kity 1637 Coley, but I believe it's the same size pulley on the 1647 and a couple of other models.

 

[ColeyS1]

Sorry about that, I missed the model number in the title
Just had a look and found these

The teeth are a bit mangled ( I think that's why I didn't think it worth repairing) not sure if they are the right ones anyway ? About 180mm diameter
Cheers
Coley

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[Froggy]

Hi Coley,
The one on the left looks like mine, and mine is 180mm diameter. Having said that the one on the right has he bushings in that mine had and the one on the left doesn't. The teeth on mine are damaged too and I think that's what caused the pulley to wobble which in turn caused the bearings/bushes to disintegrate. How badly are the teeth damaged, it's hard to tell from the picture? They don't look as bad as mine and with a new shaft (which I have already ordered) I might get another year or two out of the machine. What do you want for them, and would you be happy to post to France?

 

[Froggy]

Hi again Coley, I have enlarged the pics and seen more clearly the teeth and they are definitely better than mine! Could you measure the diameter of the hole for the shaft on both pulleys please? Sorry to put you to this trouble mate.

 

[beech1948]

Froggy,

What are these pulleys mde of please.....there are ways to repair old teeth on
say steel or cast iron or even aluminium pulleys

 

[ColeyS1]

The one with 3 holes is approximately 15mm the one with 4 is around 12mm ( just measured with tape measure)

I wouldn't want anything for them- just pay the postage. I'd also prefer to send them recorded/tracked somehow just incase they did get lost

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[Froggy]

That's very kind of you Coley. The shaft diameter is 12mm which corresponds to the one on the right with the bushes, however my pulley has 3 holes not 4 and I'm sure the one on the left is same as mine, but if the one on the right already has the bushes and is the right size that would be fine. Just to be on the safe side would you mind sending them both please? I'll pm you with my details and you can give me some bank details for postage costs and I'll throw in a few quid for your favourite charity. Thanks very much Coley, it's good of you to go to the trouble and may get me out of a hole at least temporarily.

 

[ColeyS1]

Are there any other parts you need? I rescued it with a box full of bits and pieces- some of them brand new with part numbers on.

Coley

 

[Froggy]

Froggy,

What are these pulleys mde of please.....there are ways to repair old teeth on
say steel or cast iron or even aluminium pulleys

Hi Beech,

I don't really know but think it might be mild steel case hardened. Do you know anyone who can repair them? I have enquired over here (France) but got nowhere so far.

Cheers, Froggy

 

[Froggy]

Coley the rest of my planer appears to be fine. The only thing I would question is the belt that is on this pulley. It looks too thin for the width of the two pulleys it is attached to and I wondered if it was the wrong size belt? It is 6mm wide and 2mm thick and as best I can measure about 710mm in circumference. Do you have a belt in that box that is about 710mm in circumference?

 

[ColeyS1]

There's two belts,one with ribs and one completely smooth- both appear in good condition so I'll add them to pulleys

There's also 6 planer blades I could add- they'd need sharpening but might work out cheaper than buying new perhaps

?

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[Froggy]

Thanks for the belts, that's great. I appreciate the offer of the blades but I probably have enough to see this planer out! But I wouldn't mind the poly carbon cog in the second to last picture, bottom right. It looks in better condition than mine and that's the cog that interacts with the pulley that's damaged. I really appreciate all this effort Coley, at the very least it should buy me time to look around for a replacement planer instead of panic buying one and at best it may give me another year or two out of this one.

 

[beech1948]

Froggy,

I'm guessing you will not like the solution but it works and can prolong the life of gears for 30+ years if they are made of cast iron, steel or cast aluminium.

The method is to gring the individual teeth down to a flat and then to drill holes in the remaining tooth(s) and place small well fitting plugs in there. Then tack weld the plugs/teeth in place and weld between them to build up the tooth. A little grinding will reshape them. This is often done on older gears but seldom for the whole gear teeth on a cog. It will work but is a lot of semi-skilled effort.

see here[urlhttp://owwm.org/viewtopic.php?f=77&t=163891&hilit=weld+gear+teeth&start=30][/url]

If you search on owwm.org you will find many other examples including one where the gear was built up with plaster of paris, the gear part was then converted into a mould and recast in a nylon/resin compound.

Hope this message is not too scary

PS. I have only used the pins/plugs and weld method once. It was just about the most stressful welding event not too mention the initial grinding of the 6 teeth. However, although ugly my welds were very workable, grinding them back to shape was slow but easy and then end result is still working 3 years later with no ill effects. Wear seems normal to zero and the two sets of gears mate well with no wear backlash. So some encouragement.

Al

 

[Froggy]

Al a friend of mine suggested something similar but it is beyond my capabilities and I don't have the tools. He reckons it's £200-£300 worth of work for a tool maker/engineer. Which is a bit steep and why I went in search of an alternative. If Coley's pulley's are too worn I may have to go down this route as I can't afford a decent replacement for the planer at the moment. Thanks for the suggestion anyway, it's much appreciated.

 

[beech1948]

Froggy,

Thats OK.

BUT...a way to see if you can do it is to see what you can do with your soon to be three gears.....the original could become your training piece.

If I was doing this I would get some brazing kit as its quite cheap and grind off say two teeth and replace with pins/plugs which are brazed together and see how it goes. Brazing is much more forgiving than welding and easier to perform and much cheaper.

I would at the original gear to see if it was all one piece or two or more pieces.....one large pulley and a smaller gear. If they were two pieces then separate them ( gear puller needed or a plate and two or three M8/M10 bolts ). Once that was done I would go looking for the smaller gear from some of the standard parts suppliers inc the US ones. If you find the part then reassemble.

Good luck

 

[dickm]

Not wanting to throw a spanner in the works, but if the pulley is some sort of light alloy/crappite, then won't it be likely to get damaged in attempting to weld the, steel, toothed gear?
How is the gear fixed to the pulley? Would it be possible to get just a gear, detach the bust original from the pulley and find a way to attach the replacement?