46605A Controller question

[Mirage88]

Hi, can anybody please advise how to remove the speed knob from the 46605A controller?

Thanks... Don (Australia) 

[Joe Satnik]

Dear Don,

Note to others, this is the control head to the most recent HO/On30/N power pack:

http://www.bachmanntrains.com/home-usa/products.php?act=viewProd&productId=209

I've had these apart for repair, so I'm somewhat familiar with them. 

I've never had a reason to take the speed control knob off the potentiometer under it.   

May I ask why you need to remove the knob? 

Do you already have the clam shells split apart?

Sincerely,

Joe Satnik

[Mirage88]

Hello Joe,

Thanks for your reply. In the meantime I managed to get it off - it is a tight sliding fit on a splined shaft and needs a fair bit of persuasion. The reason is that with my stiff hands I find that the taper on the knob makes it difficult for me to handle. I'm going to replace it with a simple cylindrical aluminium knob if I can find one.

Thanks again and best regards,

Don

[Doneldon]

Don-

Try Radio Shack; I think they are in Australia. In the alternative, try a hardware store or an online electronics store. If you can't find a replacement, try gluing rubber drawer liner to the existing knob or glue some plastic or metal to the knob so there is something to provide a grip.
                                                                -- D

[Mirage88]

Thanks for your helpful thoughts guys. I managed to find the perfect knobs at Jaycar - 45mm black plastic with the correct size hole and 2 allen screws. Problem is solved and it works a treat.

Happy shunting.....

Don