Thread: changing wheels on grinder

Chris, post some pic's.

1.How to remove the left hand cone? I'd squirt some lubricant into the threads
2.Do I have to move the inner wide dish if so how can I move it without damaging it? Pic required
3.I assume I need nuts and washers to hold the wheels on, what are they called so I can try and source some? Go to an Engineering supplies place and ask or google the make and model grinder
4.What are felt wheel s used for? Honing blades/chisels

Originally Posted by haggismuncher

1.How to remove the left hand cone?

Just in case you hadn't realised, the LH side is a left-hand thread.
Undo with a shifter or spanner and give the handle a firm belt with a hammer to shock the cone undone, while holding the RH wheel to stop the shaft rotating.

Try WD40 . just a reminder that the left side cone will be a left handed thread.

Originally Posted by Blu_Rock

Just in case you hadn't realised, the LH side is a left-hand thread.
Undo with a shifter or spanner and give the handle a firm belt with a hammer to shock the cone undone, while holding the RH wheel to stop the shaft rotating.

I start by taking the RH wheel off.
- put two nuts back on the RHS and lock these together.
- holding the RHS with a spanner, take the LHS wheel off (like BR says - don't forget its LH thread).
- unlock the two RHS nuts and you are done.

Further to the above, don't use the grey wheel unless you plan to grind HSS. It will burn all plane and bench chisel blades unless you are very experienced at grinding (i.e. very light touch).

Wheels for grinding are best chosen from the coarse end of the spectrum - run cooler. HSS is a different story - use whatever you like.

Regards from Perth

Derek

Originally Posted by derekcohen

Further to the above, don't use the grey wheel unless you plan to grind HSS. It will burn all plane and bench chisel blades unless you are very experienced at grinding (i.e. very light touch).

I agree about the grey wheels and sharpening, but grinders can be used for more than sharpening. eg for just just shaping a bit of mild steel the grey wheels are fine.

Originally Posted by BobL

I agree about the grey wheels and sharpening, but grinders can be used for more than sharpening. eg for just just shaping a bit of mild steel the grey wheels are fine.

Thanks to all for their help and suggestions.

I had been told to use the white one for grinding planes, chisels etc the grey is for general grinding, I thought I'd better get something harder so I don't wear away the white one doing general grinding in the workshop.

I was aware of the reverse thread, still could get he bugger to move. My Father in Law (who actually gave me the grinder) managed to release the left hand one, it is handy having my own precision engineer on call.
I will head off to get spacers and nuts next weekend.

Chris

etc the grey is for general grinding, I thought I'd better get something harder so I don't wear away the white one doing general grinding in the workshop.

Chris

That is exactly what will cause overheating. Ideally you want wheels that are both coarse and soft wheels, something around 46 grit. Get rid of the grey!

Regards from Perth

Derek

Originally Posted by derekcohen

Chris

That is exactly what will cause overheating. Ideally you want wheels that are both coarse and soft wheels, something around 46 grit. Get rid of the grey!

Regards from Perth

Derek

Derek, when grinding mild steel eg for a welding job, it doesn't matter if it gets hot, it's going to get a lot hotter when its welded. I reserve my white wheels for sharpening. However, when shaping a bit of irregularly shaped mild steel for a welding job it can quickly mangle a soft white wheel meaning the wheel will need serious dressing before it can be used for sharpening. So why waste a white wheel when a crumby grey one does the job? I have 1 white, 2 grey and one blue, one wire wheel and one buffing station.

If "general grinding" refers to anything other than a bench plane/chisel blade, then I agree. I think I missed the intent of the earlier message.

Regards from Perth

Derek

Originally Posted by derekcohen

If "general grinding" refers to anything other than a bench plane/chisel blade, then I agree. I think I missed the intent of the earlier message.

Regards from Perth

Derek

Thaks for that. I wasn't clear with my reply. The "general grinding" was basically for everything non woodworking. I had been told just to use the white for grinding of woodworking chisels and planes.