Pad Axle stuck screw

teebs_123

I've tried to replace the pads on my BR-RS805 road disc brakes, fronts have been fine, but the small screw that holds the pads in (named the pad axle) I've manged to round the head and it won't come out..

Presume I can just drill it out carefully?

bbrap

Did you remove the little clip on the back that holds the pin in first? If not, do that.
Then you may be able to wind it out using the little protruding bit that the clip fits on. a pair of small nose pliers may do it.

teebs_123

Thanks, I'll have a crack with the pliers

compuwiz_uk

another angle if the pliers on the ends does not work could be a pair of thin nosed pliers on the centre part of the pin ( the bit between the pads ) to grab & twist to try & crack the pin loose that way. ( probably best to remove the wheel 1st though for more room to work incase its not already removed )

Hinaultscrapcousin

There's a flat head on the other side isn't there? So you could grab the torx bit with some pliers and undo from the other side?

compuwiz_uk

if its anything like the pin on my 785's then i dont think there is.

just the hex head & a locking clip.

http://www.wiggle.co.uk/shimano-br-m785 ... snap-ring/

bbrap

compuwiz_uk wrote:

if its anything like the pin on my 785's then i dont think there is.

just the hex head & a locking clip.

http://www.wiggle.co.uk/shimano-br-m785 ... snap-ring/

Mine has a slot head and locking clip, no hex head. But I assume either style will provide the same problem if the head has been mullered.

crankycrank

Drilling out the bolt head would probably take enough tension off the bolt to turn it with pliers or if you have a torx bit of the proper size you can tap it in the stripped head and often this will give enough grip to turn the bolt.

compuwiz_uk

bbrap wrote:

compuwiz_uk wrote:

if its anything like the pin on my 785's then i dont think there is.

just the hex head & a locking clip.

http://www.wiggle.co.uk/shimano-br-m785 ... snap-ring/

Mine has a slot head and locking clip, no hex head. But I assume either style will provide the same problem if the head has been mullered.

indeed it would.

its times like this that make the simple metal split pin option on lesser spec brake options a better idea - must have gone for a solid pin for a reason but it comes with its own problems.

dee4life2005

Mine had the slotted head, for a flat-head screw driver ... put was easily knackered. Tried a few things, including pliers with no luck. Had to resort to using a very sharp chisel and few gentle taps to get it to bit into the screwhead a little to get some purchase. Got it undo eventually and used a split pin as a temporary replacement, until I got an allen head replacement.