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there are two sides service and parking/emergency check to make sure the slack adjuster retracts when pulled and check emergency spring on end to make sure its lined up and not broken. and make a full brake application to ensure there are not diaphram or brake line leaks
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When you release brakes you hear air?
If you're referring to an air brake system, you have a leak in a brake chamber... one of your emergency chambers has gone bad (if you hear it only when you depress the brake pedal, then it's a service chamber).
Why is the spring brake chamber not a primary element?
The spring brake chamber is designed as a parking brake only. The service brake chamber is air operated which can be controlled more efficiently as needed.
How do you know when brake chambers go bad?
Chock your wheels and release the brakes. Do a walk around. If you hear air escaping and pinpoint it to a chamber, then you have a bad emergency chamber... in which case, you'll probably hear it escaping from the purge valve between the two axles, and you'll need to take a set of pliers or vice grips and pinch off the lines to each chamber to determine which brake chamber is bad. After that, press the treadle valve (brake pedal)... I use a hood prop rod for this... you can buy them at any auto parts store, although I bought mine from Snap-On (they're also handy for when you have to adjust a clutch). Check again for air leaks... if it's coming from the service chamber in this instance, it's a problem with the service chamber, and you should be able to pinpoint the specific brake chamber by sound.
How do you tell if it is a short or long stroke brake chamber?
You can generally determine if a brake chamber is short or long stroke by measuring the distance from the face of the brake chamber to the center of the clevis pin. Short-stroke chambers have a shorter distance, typically around 2.5 inches, while long-stroke chambers have a longer distance, typically around 4 inches. Additionally, you can refer to the manufacturer's specifications or markings on the brake chamber itself to identify its stroke type.
How can you tell if it's a bad wheel bearing or if it's the brake calliper that went bad?
front wheel bearing bad on a motorcycle
How can a springbrake on a tractor trailer kill you?
It's actually the brake chamber which can do this... if you're not ASE certified to work on air brake systems, you shouldn't worry yourself about this too much, because you have no reason to be working on the brake system - least of all, the brake chamber. When a brake chamber pot is removed, it must first be caged, meaning the spring inside the brake chamber is fully compressed. Before that brake chamber pot is disposed of, they must first be uncaged - if someone (such as a scrap metal recycler) takes that brake chamber pot apart while the spring is still caged, it could be a potentially lethal mistake.
Can you use a long stroke and a short stroke brake chamber on the same axle?
I would want both brake chambers to match original equipment.
What do I do if there is an air pressure release when I apply the brake?
Assuming you're talking about an air brake system, if this is happening, then you have either a bad service chamber in at least one of your brake chambers, or a compromised supply air line. What to do should be obvious - get it fixed.
What is the difference between spring brake and service brake chambers?
On a T30 brake can, there are two chambers - the service chamber, and the emergency chamber. In the brake chamber, there is a spring.. when decompressed, it rotates the S-cam to lock the brakes. This is your parking brake. When you release the brakes, the emergency chamber remains constantly supplied with air to compress this spring, effectively releasing your brakes. The service chamber counteracts this, allowing you to utilize your brakes, but only when air is supplied to it when you push on the treadle valve.
Is the spring brake chamber a primary element?
no
How would you know if there are damages to the brake chamber on a school bus?
It might appear damaged, or you might hear escaping from the brake chamber, or the cam arm would remain extended and not contract (thus locking up the wheel on the side opposite the brake chamber).
How can you tell the clutch cable is bad?
You can tell by how much higher the clutch pedal is to the brake pedal. when new pedals are at the same height.
