Bleeding Beringer Brakes

[Av8rRob]

I bled my Beringer brake with a combination of pressure from a garden sprayer pushing the fluid up from the brakes to the reservoir and suction from the brakes using a harbor freight vacuum bleeder. I this the combo was the way for me to get out all the air bubbles.

[bugsy63]

Hi Bill,
I tried to get an accurate measure of when the brakes take-up after pedal application and as I said, its about 1/4 inch. They really have nice progressive feel. I think you'll enjoy them when you get them right.

I'm building a Glasair Sportsman at the moment. I've installed the standard matco master cylinders but am seriously considering converting to Beringer.,

I'd love to hear what you think when you get it flying

Regards
Michael Brooks

[bkervaski]

Thanks for checking!!! When I press the brakes they depress about 1 inch then stop I may have some air to work out.

[Walt]

When I installed a set for a customer I couldn't get all the air out until I disconnected the masters on the lower end and raised the cylinders to the horizontal position (as called out in the manual).

[bkervaski]

I re-bled the system again this morning with the master cylinder's disconnected and in a horizontal position and it made a significant difference. The result was how I would expect them to feel. Glad I make this post and thanks all for the help!

[JDA_BTR]

I haven?t bought a bleed kit yet. I?m using the mineral oil type of fluid. Is there any particular pump to buy to pressure the system? Is the beringer kit expensive? What from aircraft spruce gets the job done as well?

[RV7 To Go]

Most guys on our field (myself included) just use a pump style oil can. Many pumps have a plastic hose with a brass nozzle which can be cut off and the hose then fits the bleeder. Just watch and feel for air as you pump in the fluid. Close the bleeder and refill before pumping any air in. I also level the cylinders prior to starting and connect the overflow to a hose with the end at the bottom of a small bottle with enough fluid in it to prevent drawing air back into the system. Easy to do with one person and no mess if you do it right.

Al

[swisseagle]

There are RV-4's that have the master cylinder mounted the wrong way around. Interestingly the plans show them on one page this way around an on the other page the other way around.

In the end I gave up and re-positioned the cylinder the right way around, so that air can get throu the system and bleeding from the bottom to the top dies not give a mess and only take 5min.

Bleed always from the bottom up ... the bubbles ar going that way also.

[sglynn]

What pump and where did you get it to add brake fluid from bottom up?

I'm ready to add fluid to brand new brake system on RV-7A. I've looked on Amazon, Spruce, O'Rielly's but I don't see a pump that will hold enough fluid to fill up the system to the reservoir.

[bkervaski]

Beringer sells a bleeding kit, it's reasonable and nice quality.

If you are bleeding Beringer brakes be sure to use the correct fluid, it calls for mineral oil, they can send you a gallon with the bleeding kit.