Hand planar pulley removal

[m96gran]

Does anyone know if these pulleys are press fit? I'm getting a bit nervous about pulling it off since it has 2 non-threaded pot holes in it that I dont know the purpose of.. Almost look like they are there for some gripping tool to be able to screw it off...
Anyone familiar with these things?

 

[Retired]

Hi,

If the holes are un-threaded then as you say the pulley appears to be screwed on and requires a "pin wrench" in order to unscrew it but be very careful because it could possibly be a left hand thread and the shaft will need locking somehow? Check first for a grub screw. Don't cut yourself.

Kind regards, Colin.

 

[m96gran]

Hi,

If the holes are un-threaded then as you say the pulley appears to be screwed on and requires a "pin wrench" in order to unscrew it but be very careful because it could possibly be a left hand thread and the shaft will need locking somehow? Check first for a grub screw. Don't cut yourself.

Kind regards, Colin.

View attachment 1093

Ok, thank you very much for the suggestion!
I will try to find such a tool before I try to just pull it off the axle. I can fix the axle by fixing the cutter drum somehow.
Kind regards
Henrik

 

[Retired]

Hi,

You're welcome Henrik and good luck.

Why not make your own pin tool; a length of flat steel say 1/8" or even 1/4" thick with holes drilled in to accept pins; the pins could be suitable diameter nails cut to length; such a tool isn't difficult to make and for this one off job it doesn't need to be fancy. I would think it highly unlikely the pulley would be a shrink fit onto the shaft without a key being added; I'm unable to add more because I can only suggest from seeing the picture so I could be wrong?

Before doing anything else though have you browsed the web looking for the manual for your planer; this should give a detailed drawing of all the parts; what make and model is it?

Kind regards, Colin.

 

[m96gran]

Well.. thank you so much for your ideas! I got it lose with a home made thing like you suggested. It worked well with a scrap piece of alu and two m3 screws. It held up enough to get it off. So it was screwed on as you can see in pic..

Kind regards
Henrik

 

[Retired]

Hi,

Thanks for the update Henrik and you're most welcome.

It's surprising what you can do with a few bits of metal and a bit of thought. Had it been mine I would as a last resort used a hammer and punch to knock the pulley free but I didn't want to suggest this due to it needing a bit of practice otherwise a lot of damage could be done. I've often used a hammer and cold chisel to remove rusted nuts; it's an old mechanical engineers trick; I'm pleased you've removed the pulley and wish you equal success in the repairs.

Out of interest I've just had a look on YouTube and here's a video showing a wheel stud being removed with hammer and chisel; a lot of care is needed not to cause damage to other components and it's a good trick to know when all else fails.

Kind regards, Colin.