Enrique,
If your light stays on all of the time there is something wrong with the
test switch. It should only go on when you press it. If the light goes on
when you press the switch on the dash that means the brakes are OK. When it
doesn't go on it means that the bulb is burned out or that you have a bad
leak in the brakes somewhere.
As to the nylon switch. Usually these are self-adjusting. You just press
the brake pedal down sharply a couple of times and the piston inside should
center itself. Have you bleed the brakes? There could be some air inside
the proportioning valve or lines that lets the piston be off center. If
that is done, you might remove the nylon switch and check to see that the
switch works. Press the plunger at the bottom of the switch in and the
light switch should be off when pressed and when it is extended the light
switch should be on when pressed. The extended part you can check yourself
with the dash switch. Have someone press the plunger in while you press
the dash switch to see if the light goes out or stays off. If it doesn't go
out the switch is bad. If the switch is OK, you might try to adjust the
piston in the valve assemble with a small screw driver where the plunger is
inserted. There should be an indentation where the plunger goes into the
body. It will probably be pretty hard to see, but you can measure the
distance that the plunger will go in and see if the screw driver will go
that far. The piston inside should be easily moveable left or right to make
the adjustment. The idea is that if both sides of the brake system have
equal pressure the valve will be centered and the plunger will extend into
the grove of the piston. If one side fails then the piston will move in
that direction forcing the plunger up and break the contact on the switch so
the test light wont come on.
Sorry to get so long winded. If you need to replace the nylon switch and
can find a new one please let me know as mine started leaking and I put a
bolt in to stop the leak. I haven't been able to locate the switch in any
of the usual places.
Dave 72 B
-----Original Message-----
From: Enrique Claure <spanlab@ceibo.entelnet.bo>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: Friday, June 30, 2000 9:31 PM
Subject: Adjusting break warning switch
>Hi list, can someone please tell me how to adjust the break failure switch
>so that the light no longer lights? Thanks,Enrique
>
>
|