Hensley brake controller

Cummins12V98 wrote:
snip....

Dude you are wrong about bleeding with the Max Brake!

The connection is at the high point and the bleeding is from the connection to the end of the small line the Honeywell sensor is attached to

Have you personally seen the installation of a MaxBrake or are you just assuming?

If you don't want to use one fine but don't spread false info!.

Have watched several videos on the MaxBrake. One from MaxBrake and other
with those two 'mechanics' pushing MaxBrake.

Both recommend only from the 'T' to the new stub line of the sensor

Makes no matter how high a point it is...the hydraulic line was opened
and the 'proper' way to resolve any possible air in 'that' line is to
bleed it from the MC down to 'both' wheel calipers/cylinders

Why I asked on that other thread where a 'master ASE' brake mechanic
about his consideration to purchase a MaxBrake

Without any prodding...he volunteered that he would 'gravity' bleed
down to the wheels.

Just ask any certified brake mechanic about opening the line at the
MC and if that/those lines would be okay to not bleed them down to
each wheel caliper/cylinder

If one should say nope, then I'll never allow that person to touch
any of my vehicles or friends vehicles

Telling on what they know about hydraulic brake systems. The why of
my comment of 'fastidiousness' of design/engineering.

Also have read here and other forums where folks used their common
sense after installing a MaxBrake. They deemed that the stub line for
the sensor is unsupported. That is referred to as a 'cantilever' and
the potential for vibration fatigue (metal fracture via tiny stress
cracks) is there. Dependent on the harmonics vs the metal tubing's
resonance frequency.

They tied the sensor stub line off with nylon tie wraps. Now they
have solved one of the miscues of MaxBrake engineering & designers.

The other two are not directing to bleed the whole line down to each
wheel and that they only sense one of the MC lines.

There are two lines mandated by law and for good reason. If one line
should become compromised...the other 'most likely' will still be ok
or in better condition.

If the line that gets corrupted for whatever reason with a MC sensed
controller...then the controller will NOT see any braking command.

Therefore no trailer brakes...as that line will have no PSI

Oh yeah...there was another thread here from a member with a MaxBrake
who had false trailer braking.

Could be a bad controller, bad sensor or that there was a bubble in
'that' line that was NOT bled. That bubble will or could provide a
bit of PSI that the sensor saw to initiate trailer braking

Hope he got that resolved by MaxBrake and wonder if they now have
bleeding that whole line as part of their procedure?