Jump to content

Mid-Liner air system help


Recommended Posts

Hi,

i am just a backyard mecanic but this truck is the frist one i see like this when the gouverner cut off , all the air produce by the compressor is blow off by the air dryer exaust not air from the tank just the exesse air produce by the compressor is it normal on a 99 midliner ???

thanks for your help

Link to post
Share on other sites

This probably is normal

We had '86 & '87 CS300's with Knorr air compressors which are not equipped with unloading valves, they govern the pressure

in the brake system by having the excess air exit through the purge valve on the air dryer when the governor cuts out.

Ron

  • Like 1
Link to post
Share on other sites
  • 5 years later...

I also have a problem.... My wet tank has a lot of oil and sludge coming from it... In fact both wet and dry tanks having this issue.... Plus I can't go over 40 psi.... And no air is escaping anywhere 

Link to post
Share on other sites
  • 3 months later...
  • 10 months later...
On 1/14/2013 at 6:30 AM, 39 Baby Mack said:

This probably is normal

We had '86 & '87 CS300's with Knorr air compressors which are not equipped with unloading valves, they govern the pressure

in the brake system by having the excess air exit through the purge valve on the air dryer when the governor cuts out.

Ron

Can I ask where is the governor located on this truck 

Link to post
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.

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...