Jump to content

Low Pressure Indicator And Buzzer


lazylady
 Share

Recommended Posts

The "indicator" sounds like only the light/buzzer? If you didn't replace the pressure switch then likely that's the culprit. If you replaced it and the buzzer still sounds, then the wiring is shorted somewhere.

IMG-20180116-202556-655.jpg

Larry

1959 B61 Liv'n Large......................

Charter member of the "MACK PACK"

 

Link to comment
Share on other sites

Is the air pressure actually low while the buzzer is on, or is the air pressure normal (105 - 120 PSI)while the buzzer is on?

That would help us to narrow it down.

.

i have bought 3 new indicators and my husband says thy are bad thy lose air i spent over 100.00 for 3 the buzzer and pressure switch is good can you help me find one

Link to comment
Share on other sites

I'm curious to what the "indicator" is? Are you talking a "wig wag", or "low air flag"? That comes down to warn of low air? That could lose air if the diaphram is bad. It's just a rubber disc inside, and tend to get old and brittle.

The pressure switch works a light on the dash, or a buzzer(that you say works). I'm thinking that by your description that it all works fine.

IMG-20180116-202556-655.jpg

Larry

1959 B61 Liv'n Large......................

Charter member of the "MACK PACK"

 

Link to comment
Share on other sites

I'm curious to what the "indicator" is? Are you talking a "wig wag", or "low air flag"? That comes down to warn of low air? That could lose air if the diaphram is bad. It's just a rubber disc inside, and tend to get old and brittle.

The pressure switch works a light on the dash, or a buzzer(that you say works). I'm thinking that by your description that it all works fine.

its up above the break paddle ita called low pressure indicator

Link to comment
Share on other sites

Ok, so you have a light and a buzzer. The buzzer is staying on all the time, thought the light goes out? Well, sounds like the wire going to the buzzer is shorted? I'm not familiar with how it's wired, but if the pressure switch "GROUNDS" the buzzer, then likely the wiring going to the buzzer is grounded inbetween the switch and buzzer, thus leaving the buzzer on all the time. It's likely a simple fix overall, but you need to trace the wiring.

Quick schematic to show you what I mean:

12v+(bat).................(buzzer).....................(switch).................battery -

If the buzzer is grounded(battery -) before the switch, then it will stay on no matter what.

IMG-20180116-202556-655.jpg

Larry

1959 B61 Liv'n Large......................

Charter member of the "MACK PACK"

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...