Posts: 260
Threads: 32
Joined: Jul 2005
I use heat-shrinking tube. The first step is putting it over the axis of the motor, then shrinking it, then putting the worm-gear on it.
Worked fine for me!
Posts: 1,788
Threads: 36
Joined: Aug 2007
A piece of the spray tube from a can of WD-40 lubricant...
When the "clutch" breaks it usually shears in half. The thinner half is still attached to the worm gear shaft and usually stays in the small aluminium bushing on the end of the gear. The piece that falls out or stays stuck to the motor shaft is what can be replaced. If the piece that goes around the worm gear breaks, you have a real problem. You cant drill the spary tube out enough to insert the worm gear without the spray tube falling apart.
I clean everything with alcohol and use a small drop of IC2000 tire cement in the gear shaft, and around the inside and outside of the replament piece. Too much glue and you wont be able to fully seat the motor shaft in the worm gear.