Leak in or around power brake valves

[lesnagy]

While searching for a reason that my left brake pedal seems to sit much lower than the right under straight braking force I opened the left inspection panel and found a decent sized puddle of 5606 fluid under the power brake valves. Please don't tell me that all the work in this area happens though the inspection panel hole. I have not determined yet what exactly is leaking. Is there something that is a usual suspect here like O rings in the brake valve etc ? Any insight is much appreciated. I read the maintenance manual but it doesn't give a whole lot of detail in trouble shooting this.

Thx,
Les

[lesnagy]

See attached

[Huck-Mag]

I've had the same issue for a while in the 680FL.
No one has really figured it out just yet.
Anyone else encounter? Bruce? Glenn?

Brent

[lesnagy]

While searching for a reason that my left brake pedal seems to sit much lower than the right under straight braking force I opened the left inspection panel and found a decent sized puddle of 5606 fluid under the power brake valves. Please don't tell me that all the work in this area happens though the inspection panel hole. I have not determined yet what exactly is leaking. Is there something that is a usual suspect here like O rings in the brake valve etc ? Any insight is much appreciated. I read the maintenance manual but it doesn't give a whole lot of detail in trouble shooting this.

Thx,
Les

Well I lucked out. Turns out scat tube rubbed a pin hole in a short hydraulic line btw the power brake valves. It wasn't easy to find until the system was under pressure with the aux hydraulic pump on. will be an easy fix. I love it when a potentially big problem becomes a non issue.  

[Huck-Mag]

Great! Thanks for the update.
I'll have to bring in Sherlock to solve my mystery.

Brent