2005 FP Pinion

[UCGL_Guy]

Anyone have an idea of how this gear is attached to the shaft - and any success removing it safely. What methods have been used?
Thanks in Advance
Ken
Team 476
6th year rookie

[Cory]

Originally Posted by UCGL_Guy

Anyone have an idea of how this gear is attached to the shaft - and any success removing it safely. What methods have been used?
Thanks in Advance
Ken
Team 476
6th year rookie

The best way to do it would be with an arbor press.

You *COULD* attempt to cut a wedge out of it with a dremel and remove it that way. I don't think this is a good method at all, but some teams swear it works. You have to be incredibly careful to make sure that you dont cut into the shaft, or get shavings into the internals of the motor.

Also, I believe Paul posted a drawing for a gear puller that can be made with a mill, on here last year sometime.

[Max Lobovsky]

How would you press, or pull for that matter, it off? I can't see how you can support the shaft properly.

[UCGL_Guy]

First let me say we haven't received our kit yet so I haven't seen this year's motors. Our machinist in just quickly looking at some from prior years said they look like they are "glued" to the shafts. has anyone actually removed these gears from the shafts this year?

Keep the cards and letters coming.
KY

[Cory]

Originally Posted by Max Lobovsky

How would you press, or pull for that matter, it off? I can't see how you can support the shaft properly.

Cut a slot in a plate and slide it on the shaft so it's supporting the gear.

[UCGL_Guy]

thanks for all the help- got an answer from the source.
press it off

[Biff]

Originally Posted by UCGL_Guy

Anyone have an idea of how this gear is attached to the shaft - and any success removing it safely. What methods have been used?
Thanks in Advance
Ken
Team 476
6th year rookie

We had good luck last year on the hardened gears on the drill motors with a cold chisel a block of steel and a ball peen hammer. I would test this on a softer gear for a motor that you are not going to use or a spare. I just put the chisel (a small one, that didn't fit to the bottom between the teeth,and not too wide) between two teeth with a helper holding the motor and the block of steel under the gear, and gave it a good whack. It split the gear almost down the center and the remainder came off with a gentle tug with fingers. I don't know if this is an excepted method, but it did more for us.