On Tuesday, May 21, 2019 at 8:28:19 AM UTC-4, Hartley Falbaum wrote:
I am trying to improve the brakes on a Libelle 201B. I replaced the shoes and de-glazed the drum recently but not much help.
I trued the drum on a mandrel in a 10" Clausing lathe. I mounted the backing plate and shoes on another mandrel, intending to true the shoes, but got readings that told me the shoes would have to be expanded.
I had no good way to do that without getting excessive clearance. So I just deglazed them.



After installation, I had to max-out the one adjuster in order to get the proper tension on the handbrake.
I noticed a threaded hole in the brake handle, centered on the cable. Looks like a setscrew belongs there for adjusting cable length.

So--here's my question-----What style of setscrew point belongs there? Flat tip, or dog point (extended tip). I presume a cup point would damage the cable.

Thanks in advance for any factual knowledge.

Hartley Falbaum
hfalbaum at comcast dot com

You could also look for a brake shop that does specialize in rebuilding classic car and motorcycle brakes. They can re-line the shoes with a more 'grabby' material and match the brake shoe radius with the diameter of the drum..
When adjusting the cable on the wheel end, make sure that the cable and the arm are at a 90° angle when the linings start to touch the drum. As JJ mentioned, that may require the removal and readjustment of the lever by one or two teeth on the conical spline. Put a common mark on the shaft and the lever so you know where you started out from.
Good luck,

Uli
'AS'