Bosch PSB 500 RE Drill

Malcolm Eaton · #1 17th Dec 2009, 02:25 AM

I have a question to ask, has anyone ever replaced the keyless chuck on a Bosch PSB 500 RE hammer drill? If it can be done how do go about it.
From the general appearance of this model the chuck is a permanent fixture to the shaft.
I guess another one of those cheapies, when it packs up toss it in the bin.
Mac

Doken · #2 20th Dec 2009, 12:23 PM

I'm not familiar with this model but it should be a similar procedure to this.
Open the chuck right out, you should see a screw at the back of the chuck when you look into the jaws, it will normally be left hand thread.
Remove the screw then lock an Allen key in the chuck and give it a sharp rap with a hammer anti clockwise.
The chuck should now wind off.

Malcolm Eaton · #3 20th Dec 2009, 11:44 PM

Quote:

Originally Posted by Doken

I'm not familiar with this model but it should be a similar procedure to this.
Open the chuck right out, you should see a screw at the back of the chuck when you look into the jaws, it will normally be left hand thread.
Remove the screw then lock an Allen key in the chuck and give it a sharp rap with a hammer anti clockwise.
The chuck should now wind off.

That is what I thought, however this model seems different, there is no screw when you open the chuck jaws, infact it looks more like some type of rivet or swaging. I tried the Allen Key capper but that did not work. I have a faint feeling it may be shrunk onto the shaft. The directions that come with the drill have no instructions in changing the chuck.
I guess you only get what you pay for.
Mac

Doken · #4 21st Dec 2009, 03:28 PM

Quote:

Originally Posted by Malcolm Eaton

That is what I thought, however this model seems different, there is no screw when you open the chuck jaws, infact it looks more like some type of rivet or swaging. I tried the Allen Key capper but that did not work. I have a faint feeling it may be shrunk onto the shaft. The directions that come with the drill have no instructions in changing the chuck.
I guess you only get what you pay for.
Mac

That's a new one on me, probably to save some $$$ in manufacture.