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rstp1953 · 07-20-2017, 11:05 AM

Hi,
Every time I release the parking brake from the coach the brake master cylinder is activated therefore the brakes are applied and can't move. Any suggestion?????
Thank you

Skip426 · 07-20-2017, 11:46 AM

Quote:

Originally Posted by rstp1953

Hi,
Every time I release the parking brake from the coach the brake master cylinder is activated therefore the brakes are applied and can't move. Any suggestion?????
Thank you

Ok , I'm a little confused here , it's easy when you get to my age.

I take it that you're talking about a towed vehicle , braking system .
A " Brake Master " manufactured by " Roadmaster"
If this is the case , please include , information on your Tiffin coaches chassis, ( year/make/ air brakes ?) , and the type of vehicle your towing .

If this is a toad braking system , did you install it yourself ?
Has it ever worked properly ?

rstp1953 · 07-20-2017, 12:33 PM

Thank you for your response. It was installed by professional 5years ago, I never had no problem until few days ago, I have a Tiffin Allegro Red 2012 34 QFA with a freightliner chassis, towing a Ford Edge 2014 FWD.
The brake system is Brake master from Roadmaster with a break away system.
I have also a problem with lighting on the toad, it looked like it did happen at the same time. Do you think this is related with the light. I checked the continuity of the cable for the light and it is good.

Skip426 · 07-20-2017, 01:00 PM

I'd be looking at the break away side of the system , for the problem with the toad brakes not releasing.
The lighting and brake away could share a common ground, I'll be trying to find an installation manual for your system to see if I can provide any insight.
Particularly interested in the break away activation , the sales brochure I have from Roadmaster doesn't say much in that regard.

EDIT: OK back in time to add to this post. Troubleshooting guide , lists: Look for deformed/kinked, tubing in the plastic supply lines , both in the coach and toad, that may be restricting the venting of the brake application cylinder . Also check the activation cylinder mounting to make sure the retraction is hampered by twisting or binding. If you've had the cylinder on/off and still have issues this shouldn't be the problem.
Page 19 of the installation instruction available on line.
Break away activation is by power from the battery , so make sure the break away switch isn't allowing power to the , break away reservoir control.