Hello
The trick is to keep the brakeshoes as near as possible to the drum so the butterflys will not snap out or snap over to deadlock when they are worn out.
The trick with the brake line will only work with the aluminium units. On steel you have to prpare the setup to have the same shortcut later.
Now adjusting the rear brakes is something that needs expierience but once you know how it is very simple.
If your butterflys are worn you can rebend the middlesection to have them in the old max angle to avoid deadlock oversnap yet I love to use new parts and forget worry about it.
Normal lifetime is mostly relatet to the barkeshos yet some heavy handle puller bend them much sooner. Best indicator is a hand brake lever out of axis.
Grüsse,
Roland
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