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Hino FD – B Adjust Light

nickbowers ยท 2012-09-03 03:14

Hi, We have a 98 model fd here that is buzzing and showing the light pictured below when you touch the brakes. All the brakes are fine and i just adjusted them, they have plenty of meat left on them. Has anyone seen this before? Cheers, Nick

Replies2
  1. #1spanner2012-09-03 18:22

    Nick, This warning signals excessive travel in either the front or rear brake master cylinder. There is a simple push switch screwed into the spring end of each air over hydraulic cylinder. If you have no fluid leaks and brakes are adjusted it will be either a faulty switch or internal leakage in the master cylinder. I have seen both. You can unplug switches one at a time to work out which one is bad.

  2. #2nickbowers2012-09-05 06:44

    thanks mate, i just blew out all the electronics on the air tank and it went away. Was after washing it. Cheers