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Most likely answer is that it has something to do with your brake chamber. Bad brake chamber, bad seal.. something to that effect. There may also possibly be blockage in the air line. When trailers are parked in the yard, at customers, etc., there's usually nothing done to cover the glad hands, and stuff can get into the air lines that way.
ANSWER
The most logical answer is the trailer brakes are out of adjustment. A VERY common problem with HD air brakes. DOT will fine you and put you out of service if they catch your running with brakes out of adjustment. Call a road service and get them adjusted properly >before< you hit the road again. A driver is totally and 100% responsible for assuring brakes are properly adjusted and working correctly. If your are sure they are adjusted right make sure your air lines are connected right, red on red, blue on blue, make sure you push in both the red and yellow brake valves on the dash. (charging the trailer brake air supply) If you will hook your trailer, roll your gear up, and then tug against the trailer with both dash valves, or the one big yellow valve, pulled >out< (trailer brakes not charged) and the trailer rolls forward with the tractor your trailer brakes are Definitely out of adjustment. When trailer brakes are properly adjusted a trailer will not budge when the spring brakes are set!!! Brake shoe Adjustment does indeed affect the parking spring brakes ability to lock all wheel's when a trailer has no air charge. Dude! I can't believe you actually passed a CDL air brake test! No offense intended here but you seriously do need some refresher training!! Truckers are legally responsible to make sure their equipment operates properly and is safe on public roads at all times. You have GOT to learn air brake basic man!!
What else can I help you with?
My air brakes wont engage when I apply them on my trailer but I still hear air what is my problem?
Sounds like you might have a bad brake chamber or brake chamber seal. I don't know if you're a company driver, or if you own that trailer, but if you are a company driver, you need to contact your company immediately and get routed somewhere to get it repaired. If you're an owner/operator, you really should do the same. If you get pulled over for a DOT inspection, they will hammer you for it.
Why wont my brake chamber work on my trailer when I apply brakes?
First, what makes you sure it's the brake chamber? If your brakes are releasing when you push in the emergency air, but applying the foot brakes (which use the service line) has no effect, then the boot (gasket) within the brake chamber is probably worn, if it is a brake chamber issue. If you have a codriver (or just someone who can push on a brake), you should follow your service (blue) line under your trailer until you find a connector which you can uncouple. Once that's done, have them hit the brake pedal and see if air is even getting through the service line before you start messing with the brake chamber.
Air Brakes wont grab when i apply them on my trailer what should i do?
Get the trailer in for repair, immediately. Not only will the DOT crucify you if you catch you running around like that, but there's also the safety concern. One of these trucks loaded still requires the length of two football fields or more to come to a complete stop at highway speeds - and that's with a properly operating set of brakes.If it's a company truck, get on the Qualcomm, get on your cell phone - do whatever you need to do to contact your dispatcher right away. If they blow you off, then make sure your log books are in order, stop at the next scale house, and request they Level 3 your vehicle - the company will be forced to take action at that point.
Why wont it let you grab the nickel on Riddle School 3?
You have to clog the toilet with toilet paper to have the janitor come and then you can grab the nickel
Vehicle starts to skid you should trun steering wheel?
RELEASE THE ACCELERATOR FIRST, then turn...do not apply the brakes this is because the ability for your car 2 steer is dependant on the friction between the road and tyres. if u apply the brakes u risk at locking them up. if this happens there is nearly no friction and u wont b able 2 make the turn. what u want to do is to use as much of that friction solely 2 turn the car...hence u should not use the brakes
Is the rotors the reason the car wont reach zero on the dashboard when you press the brakes?
No.
The song by Eminem and Pink in COD Black Ops trailer?
wont back down
What happens if you press the brakes when a drum is off?
it wont stop. You will very likely push the seals out of the brake cylinder and have to repair or replace it and bleed the brakes
Why wont brake pedal get hard?
You must have air in the system. Get your brakes checked ASAP !
Are there any bleach movies?
it wont be released until 2012 you can go to youtube and type in bleach live action trailer and see the trailer.
How do you change front brakes on a 1999 Pontiac grand am?
I have a 99 grand am and I am tring to replace the brakes on the front of my car but when I go to put the brakes back on the caliper wont line up wheats wrong with this? How do I fix this?
Why wont your trailer brake lights work?
If you have a 1998 or newer it could be a fuse in the power distribution center under the hood. The whole trailer light system is fused through there.
