brake chamber

That spring inside is nothing to mess with unless you know what your doing. The pressure on the spring will kill you. I would replace the whole thing for $55.00 and be done with it much safer.

 

I have yet to see spring brakes on the steer axle.

 

Lol... I had one start leaking on me just last week on the emergency side... Threw a cage bolt in it, drove to the nearest shop that was open (early Sunday morning) and had it fixed. Obviously it was still leaking after I caged it but not bad enough to drop my air pressure below 90 psi. So I just kept a close eye on my air and went a little slower than normal... After that I bought me a couple of fittings I can use to screw on the end of the air line to stop air flow completely for the next time this happens. If I hadn't have been in the middle of BFE nowhere I would have found a store to buy a new chamber and replaced it myself. They are super easy to change once someone has shown you how to measure and cut the rod to the correct length.

 

You can replace the back end. Leave the front attached to the bracket. You don't have to cut a new rod.

Saving time on the road.
At home I replace the entire unit.

 

I know it can be done this way but I'm a little hesitant to mess with it... I once witness one that basically exploded in a guys hands while he was taking it apart... Scared the he'll out of everyone in the shop... Luckily no one was hurt other than a pretty smashed hand.

 

It’s a violation, but not an OOS violation.

 

I've never had to do it actually. I've never had one bad enough to need it, but if I did I would cage it and get it to a shop. If I couldn't cage it I might consider backing off but some adjusters adjust much more quickly than others. If I had to do it that way I would block off both air lines, that way the brake can't tighten itself back up.

 

Depends on the size line and fitting. I’ve used dimes several times. Used a penny once as I didn’t have a dime. Couldn’t get the penny out and had to change the line. On rubber lines vise grips are good, not so much on plastic lines.

 

The 20% rule is for service brakes not spring brakes, and the service brakes still work when the spring side is caged.