Help ! Scheppach 260 Thicknessing problem

[Good Surname or what ?]

My HMS2600ci has just packed up while I was in the middle of thicknessing a batch of components.

Symptom:

When in thicknessing mode with no load the rollers and block are turning fine. When I feed the workpiece through it catches and is pulled forward but stops abruptly and the machine makes a loud whirr/clicking noise. If I stop the machine and start again without a load it spins fine but stops the same way a few seconds after I feed a workpiece.

I have removed both side covers and operated the machine. When it stops the chain drive for the rollers stops but the block is still spinning (I think - might have to check that again)

Any thoughts?

cheers
Phil

 

[9fingers]

I don't know this machine in details but it sounds like it may have lost some teeth from the roller drive gears.

Usually there are a couple of gears plus belt/chain drive to reduce the cutter block speed down to feed speed.

Could also be a shearpin (deliberate weak link) that has broken.

Your manual should show if it has one of those.

Good luck
Bob

 

[Good Surname or what ?]

Bob,

Thanks for such a quick response - what a great forum this is.

The problem is, as you suggested, teeth on the roller drive gears.

You can see at 3 o'clock on the gear in the centre that 3 or 4 cogs have gone over 3/4 of their length. Why that's happened I don't know. But at least I know what I need to replace.

thanks
Phil

 

[Eric The Viking]

You can see at 3 o'clock on the gear in the centre that 3 or 4 cogs have gone over 3/4 of their length. Why that's happened I don't know. But at least I know what I need to replace.

Try Sheppach. I just found this in "another place":

23/01/2008 22:01:00

Also, if you do decide to buy the 2600Ci, make sure it's got metal cogs fitted. Earlier models had nylon cogs which tend to fail. Mine had the plastic cogs initially but Scheppach sent me metal replacements which I then retro fitted - bit of a faf but worth the effort.

I looked at your picture thinking, "why on earth did they use plastic?!?"

The above is dated a while ago though...

 

[9fingers]

Look carefully at the one that meshes with the damaged gear. It is possible that that will be damaged too. Perhaps not by much but could cause early wear in the new large gear.

Cheers

Bob

 

[Einari Rystykaemmen]

Looks like upper right chain gear has some damaged teeth too.

Personally I would replace all four gears and chain. :wink:

 

[Shane]

Upper right looks fine to me, why blow so much cash?

 

[Mike.C]

Phil wrote:

Bob,

Thanks for such a quick response - what a great forum this is.

I could not agree with you more Phil. The time, cash and frustration members save each other day in and day out is astounding.

Well done Bob =D>

Cheers

Mike

 

[MickCheese]

I don't think the other cog is damaged It looks like is a shadow on the photograph.

Mick

 

[studders]

Looks like upper right chain gear has some damaged teeth too.

Personally I would replace all four gears and chain. :wink:

I thought that too but I think it's just shadows. That said, if I were ordering and having to fit two new wheels I'd be inclined to replace the lot too.

 

[Good Surname or what ?]

Looks like upper right chain gear has some damaged teeth too.

Personally I would replace all four gears and chain. :wink:

I thought that too but I think it's just shadows. That said, if I were ordering and having to fit two new wheels I'd be inclined to replace the lot too.

It is just shadow. But when I find the price the replacements part I may just change all four. We'll see tomorrow I guess.

 

[studders]

Yes, price would be a factor. I was assuming, wrongly, that being Plastic they wouldn't be that expensive. Of course from experience many of us would know 'it ain't necessarily so' .

 

[9fingers]

Phil,

Whilst you are check this out, have a look at the pins/shafts that the gears run on. It is not unusual for these to wear quite badly.

It might be difficult to understand but a plastic gear on a metal shaft will cause the metal to wear much more than the plastic.

I've just be trying to sort out an old KIty for someone else where a shaft has worn my over 1mm!

Good luck

Bob

 

[richburrow]

I had exactly the same thing happen to mine.
Spare parts were fairly cheap, get the part numbers from your instructions and I will try and find the place I got mine from, if you want.
Rich

 

[richburrow]

I got my spares from these guys, I ordered over the phone the parts came next day 8)

http://www.powertoolspares.com/parts1.php?manufacturer=5

The retaining clips that hold the cogs on are a swine to get off. Long nose pliers, flat head screw driver and some bad language.

Good luck with the repair

Rich

 

[Good Surname or what ?]

Rich,

Thanks for the link. I've made contact with them and hope to get pricing later today to decide what to order.

cheers
Phil