Bosch PSB 18 Li-2 Drill - Chuck comes Loose!!!

Richard10002

Richard10002

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Hi,

I've wanted a new cordless for a while and have been looking at Makita, Bosch, and AEG offers in B & Q for a while. Prices range from about £90 - £150 for what I seem to want.

Anyway, I saw the Bosch with 2 x 1.5Ah batteries yesterday in B & Q for £81, so snapped it up. Got it home and all looked well. Very solid, charged up nicely, ran it a few times - all good!

Then I noticed that the supplied driver bit had fallen out and was on the floor. Refitted it, tightened chuck to the clicks, ran it again a few times, bit loose and ready to fall out.

Googled it and found mostly great reviews, but a number of bad ones, (1 star on Amazon for example). Where there was a bad review it was always to do with the chuck coming loose and no apparent way of preventing it. The cause seems to be that when you stop drilling on high speed, a clutch connects, and the drill stops immediately - this is marketed as a good feature. The momentum of the chuck when the drill stops suddenly seems to be enough to loosen it after a few stops and starts.

Seems to be a design flaw and I'll be taking it back on Thursday for a refund..... unless all drills behave this way these days, and I'll find the same with a Makita at £130, or the AEG at £150, (inc. 2 x 3Ah batteries!!).

Does anyone use modern Li-oN cordless drills regularly on a stop start basis who can tell me whether this is normal, or a pile of poo ?

Many Thanks

Richard
 
Richard10002 said:
Hi,

I've wanted a new cordless for a while and have been looking at Makita, Bosch, and AEG offers in B & Q for a while. Prices range from about £90 - £150 for what I seem to want.

Anyway, I saw the Bosch with 2 x 1.5Ah batteries yesterday in B & Q for £81, so snapped it up. Got it home and all looked well. Very solid, charged up nicely, ran it a few times - all good!

Then I noticed that the supplied driver bit had fallen out and was on the floor. Refitted it, tightened chuck to the clicks, ran it again a few times, bit loose and ready to fall out.

Googled it and found mostly great reviews, but a number of bad ones, (1 star on Amazon for example). Where there was a bad review it was always to do with the chuck coming loose and no apparent way of preventing it. The cause seems to be that when you stop drilling on high speed, a clutch connects, and the drill stops immediately - this is marketed as a good feature. The momentum of the chuck when the drill stops suddenly seems to be enough to loosen it after a few stops and starts.

Seems to be a design flaw and I'll be taking it back on Thursday for a refund..... unless all drills behave this way these days, and I'll find the same with a Makita at £130, or the AEG at £150, (inc. 2 x 3Ah batteries!!).

Does anyone use modern Li-oN cordless drills regularly on a stop start basis who can tell me whether this is normal, or a pile of poo ?

Many Thanks

Richard
Click to expand...
I had a Bosch 18v Nicad that did this at times - now in the bin as both batteries died. New Hitachi 14.4 Li-ion so far seems more powerful, and no sign of the chuck-loosening habit.
 
Much older Ni-Cad Bosch. Can see the screw you mention, or similar. Never come undone but does not stop dead like you mention.

Only one I have ever deliberately undone was a LH thread, which would stop that happening....... pity I did not realise it was LH until too late.

Could try Loctite on the screw if you dont want to fork out another 50 quid or so
 
Last edited:
I've got 2 Hitachi 18v Li-ion cordless drills which I use for work and never had a problem with either of them and they get hard use. I have recently bought a Makita 18v Li-ion cordless drill for the boat and no problems there either - or for that matter my previous 14.4V Ni-Cad Ryobi which I had for many years. May be a problem specific to Bosch.
 
I have four Bosch drills up to 24v in daily use and never had such issues with any of them (2 are the little 10.8v type) do you have the green one or the blue pro one, I ask as you need to be comparing the blue ones with Makita. Actually I guess you must have the green as the pro range are 1.3ah or 2ah not 1.5ah, though I have seen them advertised as 1.5.
 
David2452 said:
I have four Bosch drills up to 24v in daily use and never had such issues with any of them (2 are the little 10.8v type) do you have the green one or the blue pro one, I ask as you need to be comparing the blue ones with Makita. Actually I guess you must have the green as the pro range are 1.3ah or 2ah not 1.5ah, though I have seen them advertised as 1.5.
Click to expand...

Green Bosch comparable to Black & Decker.
Blue Bosch to Makita.

Have had all 3, and I wouldn't waste cash on a green Bosch
 
David2452 said:
I have four Bosch drills up to 24v in daily use and never had such issues with any of them (2 are the little 10.8v type) do you have the green one or the blue pro one, I ask as you need to be comparing the blue ones with Makita. Actually I guess you must have the green as the pro range are 1.3ah or 2ah not 1.5ah, though I have seen them advertised as 1.5.
Click to expand...

It's the green one. There is no doubt it's a problem with the drill, and it's caused by the sudden stop from high speed. The comparable Makita is £130, which is why I snapped up the Bosch.

Pretty sure it's going back and I'll hover over the Makita or the AEG, and maybe keep the money until something else catches my eye.
 
I've got a Bosche mains drill and a battery version both are superb and have had them for some years. However, from new both chucks always worked loose and after months I changed both for non-Bosch keyless chucks. Neither have ever been an issue since! Bosch make great drills, but lousy chucks it seems... :rolleyes:
 
rbcoomer said:
I've got a Bosche mains drill and a battery version both are superb and have had them for some years. However, from new both chucks always worked loose and after months I changed both for non-Bosch keyless chucks. Neither have ever been an issue since! Bosch make great drills, but lousy chucks it seems... :rolleyes:
Click to expand...

Where do you get a new keyless chuck, and how can you be sure it will fit?
 
I spotted one at Mole Valley Farmers of all places and confess I took a punt as it listed Bosch on the packet - it fitted so I picked up another one for the battery drill! I can't recall what make they were, but will see if I can find out if it helps? I think they were about £12 - probably 6-7 years ago.

Edit: something like this: http://www.ebay.co.uk/itm/1-2-13mm-...Home_Garden_PowerTools_SM&hash=item4ac9525571
 
David2452 said:
Probably the Bosch drill that is comparable with the Makita is £130 also, comparing the green Bosch to Makita is unrealistic, as I said earlier you need to compare the GSR range Blue pro models.
Click to expand...

Took the Bosch back and got a no-quibble refund, somKudos to B & Q. Bought the Makita LXT with 2 Lithium 1.5Ah batteries for £130. Tried to repeat the Bosch problem, and couldn't loosen the chuck by stopping quickly from speed.

Thanks for all the input to all!
 
Problem solved. It was a chuck fault (assuming the whole chuck was not coming off - if so, LH thread chuck retaining screw missing). The quick stop electronics were just showing up the chuck fault. You will be happier with the Makita. Higher price in this case equals better components, including the chuck. Incidentally. None of the power tool producers make chucks, they all buy them in. Its the usual story, the lowest price machines generally use the cheapest, non-branded chucks, made in China with a higher percentage of bad ones getting through QA. Good branded chucks, like LFA or Jacobs (probably also made in China now) are higher spec / price / consistency.

Note: not all chucks made by the two brands mentioned will have their brand on the chuck as the Power tool maker chooses.

Good Luck with your new drill
 
He'll Richard

I have the same issue with the Bosch 12volt. Versiclick. It will accept multiple heads such ad right angle. It has nothing to do with the tightening of the chuck. It's the 2nd twist mechanism that locks in the head. Sometimes called the chameleon system. I use the standard straight head. A feature of the drill is to auto brake when the trigger is released. This sudden stopping creates inertia force to unlock the head. ( its only a quarter turn twist). Once the head is in locked it then falls out. It's annoying. Is there something I'm not doing right?

But yes, Is this what your talking about.
Anyone else have this problem. And solution?
Thanks
 
I got fed up with bosche tools. Basic, noisey etc

Lashed up the money and got a dewalt battery drill. You can get them in the ops indicated budget too

Absolutly brillient.
 
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