air brakes

[Ralph L. Fullenwider]

Don, that unit should have bee a 60 psi, must have been changed at one time
or other. one of those wires goes to a hot the other ground, the hot
travels up to the buzzer then buzzer to the low air light. The spring break
valve is independent of that sensor, and should pop out at between 50 and
60 psi. The sensor is only a glorified air switch really, air goes low the
sensor closes and completes the electrical circuit for the buzzer and light

Safe travels,

Ralph and Charolette Fullenwider
"84FC35 "Ruff Diamond"
Duncan, Oklahoma


At 12:37 PM 8/26/2011 -0400, you wrote:


>Hi Ralph I found that sender for the low air. Mine is on left front
>side & it can be seen from the battery compartment. The two wires are
>ground but I haven't figured out how they work. The sender is a 30 psi low
>pressure. I would think that is when the spring brake would come on which
>is when mine comes on when faning down the brakes. I would think the
>buzzer would come on sooner to let you know you are losing air. Don
>Don Spithaler
>89 SP 36'
>Butler, PA
>
>On Thu, Aug 25, 2011 at 4:03 PM, Ralph L. Fullenwider
><rlf47@...> wrote:
>
>
>The alarm is essentially a buzzer and light combination. The sender for
>that should be on the drivers side under the front bumper area. It will be
>attached to the small black plastic air line and will have 2 wires on the
>flat end away form the air line hook up.
>
>Safe travels,
>
>Ralph and Charolette Fullenwider
>"84FC35 "Ruff Diamond"
>Duncan, Oklahoma
>
>
>
>At 08:00 PM 8/25/2011 +0000, you wrote:
> >I was checking my air brakes today & I built the air to 90 psi & then I
> >fanned the brakes till the alarm came on. It didn't come till the psi was
> >40 & at that time the spring brake came on. The alarm didn't give me any
> >warning. Where is that alarm controlled from? I know where the buzzer is
> >at. Thanks Don
> > Don Spithaler
> > 89 SP 36'
> > Butler, PA
> >
>