Bleeding Beringer Brakes

[MED]

Do you recall how much fluid was required to fill the system? I have two quarts and wonder if that is enough. Thanks.

[swisseagle]

Hello Steve

Yes from bottom up ... think like the bubbles ... they will also go this way ;-)

For the absolute first time, I would do this:
- Put a tube/hose fitting onto the reservoir, make a tube into a pot/bin.
- Be sure your brake pedals are fully pulled back (if not, the internal valve is closed and filling will not work).
- Fill each line/side, untill you get some fluid in the reservoir and pot/bin, pump slowly.
- Then pump the pedals a few times, pull the park brake valve a few times and let it open.

Let it sit for a few hours like this, give time to wett all inner parts.

- Open the bleed valve at the caliper, just that much, that it start to drip out fluid, then reconnect the tube from the pump. Also without bubbles in the tube!
- Pump again until you have the brake-system volume exchanged again. Both sides.
- Check that the brake pedals are firm and L and R side equal.
- Disconnect the fitting at the serervoir, take a syringe with a piece of tube and take out 1/3 of the level of the reservoir volume. The reservoir filled to 2/3 is enough.
- Put the Vans sinter cap on.

Done!

Thats it! I have done this on a few RV's without any trouble/mess or all the other storys ... 5min per side only!

Things that help:
- Do not use a "pressure tank bleeder", under pressure you press in small bubbles, that will grow when pressure is released. Exactly what you do not want.
- Use clear tubing from the pump to the caliper, then you see, if there would be a bubble.
- Use also clear tubing and a clear bin/pot that you connect at the reservoir.
- If you could not avoid to let a bubble in ... pump once the system volume thru ... to get it out.

I used a custom made hand pump with a bubble-trap and filter at the exit-line. So I can catch all bubble and dirt going into the system.

I hope this helps!

[swisseagle]

One quart will do the job ... and you will have plenty to refill for a few years!

Think about, the reservoir is pretty small, then ther is the tube volume which is also not much. Then the volume in the brake caliper.

You need at least double the ammount that is in the system, this only to purge all air out. So with one quart you will be fine.

[sglynn]

Dominik
Thanks, excellent write up. This is great addition to the forum. Just what I needed. Much Appreciated.

[MED]

+1 Thank you from me, too, Dominik.

[sglynn]

Dominik
Thanks, excellent write up. This is great addition to the forum. Just what I needed. Much Appreciated.

[Mongoose]

I?m having a really tough time getting my Beringer brakes bled. When you folks say 1/4 inch travel is that master cylinder piston or top of brake pedal? I?ve tried pressure from the bottom, suction from the top and both at the same time. I?m thinking I?m going to need to burp the actual lines where there is possibly air. Any additional suggestions would be appreciated.

[bkervaski]

Disconnect the bottom of the cylinders and position them flat then try to bleed, this is what got it for me. Laying flat allows the bubbles to work their way out.

[azflyer21]

bkervaski is correct. With the Beringer master cylinders you will have to have them positioned horizontal to bleed properly. Also use 15psi, both of these are in the manual. I bled mine from the bottom and didn't have the cylinders horizontal and got nojoy. Once I put them horizontal the system bled perfectly.

[mturnerb]

Agree with other comments, will add one more: I had to exchange the position of the bleed valve to ensure bleed valve was at the lowest point in the system. Apologies in advance if this is stating the overly obvious but just thought I'd mention it.