Using my Wickes/Kress SDS today in chisel mode & noticed a black sludge creeping from the chuck along the chisel. Nothing I've ever added to the chuck, because I've never added anything.
I suspect that 'this is not a good thing'.
Any ideas?
Don't you occasionally dip a drill (chuck end) into grease? I do with my DeWalt and that grease turns black.
In message , The Medway Handyman writes
Hi Dave,
Yes, it's a rather intricate technical problem which I have come across before. Actually, I'm coming across it with such monotonous regularity it's becoming rather tiresome.
The problem is of a money/brand nature. You didn't spend fifteen times as much money on a big name tool. Apart from the issue of getting black sludge on your £2000 per pair overalls, you will have to factor in the time / miles lost during your visit to A&E.
Ordinarily one would recommend that one uses ones to time to calculate the true cost of ones potential visit to A&E in order to ascertain which A&E one should visit. As one will no doubt claim the travelling costs back from ones customer service manager under ones guarantee, one should ensure it is the most expensive A&E one can find as one has always found the expensive to be better for one, if one sees what one means?
Hth Someone
The Pro Wickes is made by Kress, am excellent company. It think he has a pro drill.
Probably just telling you that you got it a bit hotter than normal...
Most of the decent SDS drill makers recommend a small amount of grease applied to the shank of a drill bit occasionally - some lubrication will also have been installed by the maker, which is probably what you are seeing.
(the budget tools of old used to have substantial grease reservoirs that needed refilling frequently. Before long this would be falling out of every orifice in the machine and splattering all adjacent surfaces and users! Needless to say the whole drill ended up a sticky mess before too long).
Very good. The other side is, if it had been bought from Aldi/Lidl, there are German NHS vouchers enclosed. As the Germans are so efficient, the time travelling to and from Germany would probably be less than the trip to the local A&E, hence it would actually mean a time saving over buying the quality tool. Of course, no one should sully themselves (especially a self employed businessman) with the the local A&E, when there are quite adequate facilities available at BUPA et al. Yes, the cost is £250 per month, but when factored in over the 10 year life span of your average Handyman, it must surely mean the cost is worth it, as the time spent waiting is time lost earning. A couple of stitches after slipping with a knife - you have obviously used a £3 knife, when a £25 knife would have been more stable and not slipped, but the after effects are the true costs, why wait 2 hours, when for peace of mind, just £250 a month would help. You've got to think of all the hidden costs! Alan.
Whoosh................
Not a good thing in the sense its looks like a poor grease compound has gone like oily,still its still under warranty is it not?
Yes, and BUPA would ship you to the nearest A&E and it may not be the one you want. This happens with none elected procedures at BUPA as they don't have the staff or kit to cope with emergencies.
Get a Bosch? :-)
My Makita SDS developed a fault where it would spray black sludge around when it got hot and bothered. I picked up a Bosch blue when Screwfix had them on offer for £100 and so far (touch wood) no probs.
The Kress can be fixed. They have a 5 year guarantee, it may still be inside.
What model no Dave?
I grease my Makita as the instruction manual says to do so. This usually results in the black sludge. The heat must soften the grease up and mix with the dust.
The instructions on my My DeWalt says "do not grease" so I never have. The DeWalt has never has the black gunge.
Cheers
Adam
No doubt the grease in his was not high melting point?
Can't remember offhand - it was the first reasonably priced lightweight SDS. Although reasonable then was about 200 quid. If you really want to know I'll look.
I'm sure mine said to grease otherwise I'd not have bothered? Not sure I could find the instructions now.
We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "Doctor Drivel" saying something like:
The grease certainly isn't.
My SDS (chepao from screwfix) has always done it, it comes from the hammer action at the back, when it warms up it runs out the front!! they must have known as there is a little hatch, and a pot of grease to top it up! been working fine (and hard) for 5 years !!
My SDS (chepao from screwfix) has always done it, it comes from the hammer action at the back, when it warms up it runs out the front!! they must have known as there is a little hatch, and a pot of grease to top it up! been working fine (and hard) for 5 years !!
Ditto. The black colour comes from fretting wear, probably from the hammering faces: very finely divided iron and/or iron oxide. You need very little wear to make the grease black: don't worry about it.
It was being used in chisel mode at the time, it did get rather warm so I guess thats what it was.
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