Get old pulleys off the arbor?

Make sure you’ve loosened all setscrews, it’s not uncommon for a motor pulley to have two.

A pulley can be quite tight on the motor shaft, especially if it’s been on for a number of years. Pulley/gear pullers are cheap and handy to have around.

-- The Wood Nerd -- http://www.thewoodnerd.com

A lot of times those will be left handed threads. That’s so they don’t loosen under a load.

If that’s the case, go: Lefty tighty, righty loosey, if ya know what I mean.

-- My reality check bounced...

It’s the arbor pulley on a delta contractor’s saw. The “indentation” is more like a slot… how do keyway slots work? I bet that’s what I’ve got. I’ve tried PB blaster and treating it like a LH thread.

thanks for all your help

-- Tyler, woodworking newbie

You might also check for 2 set screws in each location. Its not uncommon to have 2 screws. Give the penetrating oil a chance to go its thing, it may take a day or so. There will be a key way on the arbor shaft. After the set screws are removed you have have to press the pulley off the shaft if it has been there for a long time.

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

A key is a (usually ) square piece of steel stock that fits into the key slot. More than one set screw can be common on pulleys. Also, if the set screws have been over tightened they can bugger up the shaft making it a real pain to get off. The nerd is correct, a puller is a must. Be aware the outer edge of a pulley cant’t withstand much force. Back it up any way you can.

You need to use a pulley/gear remover with three legs.Easy when you have one the can be stiff.Alistair

-- excuse my typing as I have a form of parkinsons disease

Thanks everybody. Learned a bit more after getting the motor pulley off (not the one I’m having trouble with) because it had a shaft key and set screw. Now I know the arbor pulley and the PIA nut I can’t get off don’t have a setscrew but there is a shaft key slot that the nut doesn’t have a slot for. Think I might end of dremeling the nut…

-- Tyler, woodworking newbie

Did you have any luck removing the nut? I have the exact same problem with my contractor saw.

Thanks.