removing a drill chuck

[BrokenBiker]

Could you make some photo?
I have never seen an "exploded" battery drill.

i will be delving back into this tonight so am happy to take some pics for you.

 

[Sarto]

 

[BrokenBiker]

so, here we go.

first pic is of the drill with just the side taken off

then, the motor/gearbox unit removed

quick look before the gearbox is pulled apart

the internals laid out (top left is the bits that can be seen in last pic). the springs and BB's are the bits that were broken and misalligned the first time i pulled it apart...i have replaced these and things appear to be better now.

first set of gears put back in

gearbox housing back on

second set of gears in ( the plastic outer ring is the gear selector ring, a thin bent wire loops over the housing and connects to the hi/low slider)

final set of gears in

washer in place that sits between the gears and motor unit.

i didnt take pics of the chuck off as it just looks like a chuck and a shaft. its by no means perfect after being rebuilt but it is a lot better...there is still a slight wobble when being pushed hard but it produces round holes again (round enough to be acceptable for a hand drill)

overall, happy with the result

 

[ford34/2]

nice set of pics, you should try some Hilti stuff, now there's a challenge and a half. Your Pics show a relatively standard stock design. Amazingly looks quite well lubricated, Most are dry as a bone when dismantled.Angle grinders as well, worth a regular check.

Stan

 

[barracuda816]

Thanks BrokenBiker, i have the same drill and i have been very impressed with it, its taken a hell of a lot of abuse. But the clutch has started slipping now after using some large hss hole saws. Do you know if it has a clutch or is it just the plastic gear ring?

 

[Hitch]

Thats only a mid range one isnt it?

Something came adrift inside mine when it snatched holesawing through some stainless. Lost all drive in either gear. Took it apart, put it back together, got drive but only in second gear, and the torque settings are goosed now too. Although, its still done everything i've asked of it since (DIY stuff after moving house) Really is time I upgraded though, its a 2006 model. DV18DMR... 2 of the 3 batteries still hold a reasonable charge too. Was top of the range at the time. 10 years out of a cordless drill with medium (ab)use, I think i've had my moneys worth. £98 for a new gearbox

 

[BrokenBiker]

Thanks BrokenBiker, i have the same drill and i have been very impressed with it, its taken a hell of a lot of abuse. But the clutch has started slipping now after using some large hss hole saws. Do you know if it has a clutch or is it just the plastic gear ring?

there is a clutch of sorts...the first set of gears that are put back in consist of a disc that sits on the shcuk shaft (7mm flats on shaft) and then the outer ring sits on 4 springs and ball bearings to allow the torque adjustments. the outer ring has lumps on it to engage the ball bearings and depending on the compression of the springs it will allow it to skip over at certain loads...when its on drill mode the springs are just compressed as far as they will go and are basically just solid and there is no room for the outer ring to skip over

 

[BrokenBiker]

Thats only a mid range one isnt it?

Something came adrift inside mine when it snatched holesawing through some stainless. Lost all drive in either gear. Took it apart, put it back together, got drive but only in second gear, and the torque settings are goosed now too. Although, its still done everything i've asked of it since (DIY stuff after moving house) Really is time I upgraded though, its a 2006 model. 2 of the 3 batteries still hold a reasonable charge too. Was top of the range at the time. 10 years out of a cordless drill with medium (ab)use, I think i've had my moneys worth.

mine is the 18V 3Ah model, was only 100 quid, pretty basic, the hammer action is ****e as with most mid range cordless drills, but i have a 5kg sds for that sort of stuff (and hole sawing)

 

[Sarto]

Nice report, indeed.
Now I know I will never dismantle one, if it at least 25% working.
Thanks.

 

[BrokenBiker]

Nice report, indeed.
Now I know I will never dismantle one, if it at least 25% working.
Thanks.

it wasntt hat difficult, just take it easy and make notes o what goes where lol

 

[brightspark]

its generaly ther brushes or the switch that knack up anything else apart from chuck they get binned

 

[the snooper]

Don't see how any of that lot caused it to drill wonky holes, unless the bearing on the chuck had gone causing the chuck to wobble and where are those springs you mention I think they shot off when you stripped it as I can't see any in the pics

 

[Parm]

Don't see how any of that lot caused it to drill wonky holes, unless the bearing on the chuck had gone causing the chuck to wobble and where are those springs you mention I think they shot off when you stripped it as I can't see any in the pics

I concur

 

[Turbo]

I have 2 of those drills & one has started to slip the clutch, even when in the drill setting. Funnily enough it started happening after using a large hole saw - maybe they are not rated for cutting 75mm holes in steel sheet??

Never been brave enough to dismantle if to investigate, might have a go now. Where did you source the new springs? If I need to I might disable the clutch completely and leave it solid, would that be possible?

 

[Kayos]

You lot need to buy better drills!

My old dewalt (don't remember the model but it was the top spec one with plug in batteries) was used to regularly drill 127mm holes and on occasion 150, through various materials, it was also used on site as a general purpose drill, hole saw, hammer, screwdriver etc

I'd be using it today if some scrote hadn't stole it, must have been nearly 10 years old and going strong

I doubt the Makita LXT (brushless) replacement will last as long, even with less useage

 

[BrokenBiker]

Don't see how any of that lot caused it to drill wonky holes, unless the bearing on the chuck had gone causing the chuck to wobble and where are those springs you mention I think they shot off when you stripped it as I can't see any in the pics

Didt realise I Tom the picture before I took the springs out lol.

I would think that with broken springs there is uneven load in the gearbox unit causing a bad vibration/wobble which transfers to the drill bit...like trying to drill whilst moving the drill side to side really quickly...

 

[the snooper]

Didt realise I Tom the picture before I took the springs out lol.

I would think that with broken springs there is uneven load in the gearbox unit causing a bad vibration/wobble which transfers to the drill bit...like trying to drill whilst moving the drill side to side really quickly...

cant see it my self, may cause vibration within the gearbox but not enough mass to make the drill itself make orbital movements

 

[the snooper]

You lot need to buy better drills!

My old dewalt (don't remember the model but it was the top spec one with plug in batteries) was used to regularly drill 127mm holes and on occasion 150, through various materials, it was also used on site as a general purpose drill, hole saw, hammer, screwdriver etc

I'd be using it today if some scrote hadn't stole it, must have been nearly 10 years old and going strong

I doubt the Makita LXT (brushless) replacement will last as long, even with less useage

you need to buy a drill not worth stealing