On 24 Nov 2003 21:25:25 -0800, (drew j.) wrote:

can any of you please tell me how you get the lead screw gear off the
lead screw on a craftsman 109.20630 lathe? i've got the retaining
bolt out, and there seems to be nothing holding the gear onto the
shaft, but i can't get it off. the gear can be wiggled around a bit,
but doesn't pull off. i don't want to apply much force yet, in case
there's something i'm overlooking.

i assume the gear must come off somehow, since a threading chart i
looked at shows different gears on the screw for different
threading/turning conditions.

thanks!

Typically those have a simple woodruff key in the shaft, and they
sometimes will bind or gall in the matching slot in the gear. If you
have a gear puller, or can make up one, get behind the boss where the
shaft comes through the gear and gently pull. Ive seen enough of those
gears put on, after the owner dropped the woodruff key in the swarf,
and used the bolt to hold it on, rather than the key to keep it from
turning, which over time tends to gall the shaft and inside the gear.
Dont pull on the outside of the gear..go as close to the shaft as you
can. Some of those are zinc and will bust in half if you pull out by
the teeth.

Unless someone has a better idea?

Gunner

"The British attitude is to treat society like a game preserve where a
certain percentage of the 'antelope' are expected to be eaten by the
"lions".
Christopher Morton