ADJUSTMENT AND REPAIR BRAKE V-BRAKE 
Amig @ s: another interesting post. I already explained on another occasion how they fit the mechanical disc brakes of the bike.
example I got my own bike.
But I have another bike, folding type, which has V-brakes, which are much more popular for its economy and simplicity.
The thing is that since I bought the bike, I noticed that the brakes were not going well: I like to start acting as soon as you start to pull the levers .... But is that not giving you more or less game play ... there was always a slight touch of the blocks against the rim.
I tried loosening and tightening of all possible ways the two screws that have to adjust the brakes ... but it was useless.
So finally I decided, using a puncture repair, "we will see in another post, of course, happy to remove the brakes, see how they work and thus see how to adjust ... And they were poorly assembled! As this is something that you can also occur to you as soon as I decided to publish the post.
I must say that this post I made entirely with that soil tools always carry the bike. I intend to demonstrate that these tools despite its light weight and compact size, are perfectly valid for us out of any situation ... but, of course, we must practice and know how to use them.
Actually the problem is not that bad are mounted in itself, but by loosening the adjustment screw more than necessary, the part which acts on disturbs the spring and the screw does absolutely nothing.
Anyway, when I bought the bike, and came well.
Basta soltar el cable del freno de los mismos y ver que estos están totalmente sueltos, cuando en realidad deberían permanecer separados con cierta tensión para, justamente, separar las zapatas de la llanta cuando no se usen.
Así que empezamos por eso mismo: liberar los frenos del cable.
El lado derecho, visto desde la posición de estar subidos en la bici, se saca fácilmente apretando los frenos y extrayendo el cable por una ranura in the part.
is an ingenious system that allows quick release of brakes in the event of a puncture, for example, and then reassembling in an instant.
On the other side, we should drop cable completely loosen the screw. As we see in the picture, I'm back to tighten the screw with cable clamp nut to prevent losing them in an oversight.
Sometimes DIY tasks may seem simple and yet, from complications of the same process or because there is something that we go so far prevented us work, we have to drop it and then doing the final assembly, we may find we have lost screws .... This is solved as well: back to them after loosening the set pieces.
Well, we released the two sides of the brake, which will now call arms, we must proceed to drop the fork of the bike.
must be done with care because the pieces can be dropped, falling to the ground and miss.
Or is disassembled before we had set in place and we have trouble reassembling.
We see that the piece is a kind of ring with a notch. Just above this notch is where the adjustment screw acts. It also has a hole that is where it engages a pivot spring tension, which goes on top.
and covering tension spring and washer, and making them properly focused, is a circular piece of plastic (black color in the photo), a kind of washer or cap with a hole through which come forth other end of the pier.
When the arm to the fork, we see that there are three positions to enter this end of the pier that stands out.
We can see even with the brake set if you look.
As needed tension more or less original, we will pick a hole or another.
In principle, we can assemble the two arms of the brake With the end of the spring pivot or inserted into the center hole.
But first we have to ensure that the adjustment screw is pushing on the washer, or rather, the groove that it is (otherwise, I'd like to start).
One thing more: to remove the right arm of the brake, I saw the washer control was slightly deformed.
not turned in its housing and screw passes over the slot adjustment washer, to be somewhat sunken edge.
So while we did the same with the other, the screw fails to act on it, passing overhead.
So with a few taps of the hammer on the screw table, and straightened slightly and is perfect and ready for assembly.
This photo shows how the arm was montaldo: we clearly see that the adjustment screw not Notch affects the regulation of the washer to rotate to tighten or loosen the screw.
Here, if the washer is properly installed, is free and as they mount, the spring will cause the screw to rest on the edge of the slot.
Now everything in place and well positioned, we can screw the piece to the fork.
Now we see clearly that the spring works, then squeeze the clamp against the wheel and see that strength to do something separate, something that had not at all and was doing what was produced by friction.
And we find that we can act on the adjustment screws with the caveat that enclose the screw to loosen notch too.
assembly hereby : Temporarily tighten the lugs, but not what I said before, it is necessary to loosen the screws that hold them to rotate and thereby facilitate the assembly and disassembly the two arms of the brake.
Now put some in place and the screws look slightly ... still have the final adjustment.
then assemble the brake cable, so yes and we can see better if we placed the pads correctly.
have to press the rim through the center and well aligned with the rim . There must be more outlets or recessed at one end or another.
Tested this, we can proceed to press them, bearing in mind that when doing the final tightening, usually rotated slightly in the direction of tightening, and we must compensate.
It is very simple with a couple of tests, I will be perfect.
And finally, is the adjustment of the cable. If you have placed in the same position it was initially, most likely it is perfect and only has to act on the cable adjuster to get the clamps are separated enough.
If we see that one of the two shoes tend to fall grazing the rim to release the brake, give a bit of tension on that side tightening the adjustment screw and loosen the the opposite side ...
At a time when the brakes will perfect and will never again touch the rim when not tightened.
see that in time we have left the brakes, not as the first day, but optimal.
now is very simple regular compensation of the two arms and they act simultaneously. And after carrying out his function back to normal position without producing any unwanted friction.
There was no need bring the bike to any workshop and more importantly, we learned more about the operation of the bike, so that we can also repair in case of failure when we caught on the seafront.
I encourage you to examine your bike. Without fear. Curious. and you learn what each thing.
Many parts you can not disassemble them, because they require specialized keys hard to find (the makers have thought of everything to maintain the services working technicians).
But we can perform basic and necessary adjustments in vital parts of the bike. As I showed when we adjust the front derailleur and rear the direction , fork, etc.
No comments:
Post a Comment