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can anyone tell me how to test these..i have several taken off a bpdv brake
unit. I'm having unit rebuilt and would would hate to have to keep changing the switches until I find one that works
 

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Put pressure through both circuits equally, light should stay off. Put pressure through circuits unequally, light should come on. Very likely though, the shuttle is stuck and light will never come one. Or, my Duetto, the shuttle is stuck on and the light stays on.

It has a bore, piston, seals, electrical contacts. You could take it apart, but I don't know if any interior parts are available.

Andrew
 

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thanks Andrew...have several switches...hopefully will get one or two to work... papajam rebuilt the valve itself for me....have not put it on yet...put on a brake master this past weekend...was verrrrrrry careful not to cross thread the master (.papajam rebuilt that for me as well)...dang..now I found I need a clutch master as well!...hopefull I can bleed both systems without too much problem
 
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