How to adjust brakes on a Semi Trailer

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[teamdada]

They say 1/4-1/2. Never heard of 3/4 and by the looks of it thats too much.

[sebastienporsenna]

Had Semi- trucks put out of service by DOT because these brakesweren't adjusted properly the gap was great between the brakes and the brake drums.

[XJon]

1/4 back turn is all we do at our carrier hub shop. You are allowed in between a certian spec for DOT inspections.

[Nothingmore]

Half a turn out at best man you have way too large a gap. 1/4 turn to half turn at most.

[vicpetrishak]

Initial brake adjustment 1/2 turn . If you have to adjust the brakes any other time your ASA ( automatic slack adjuster ) is worn out .

[paulgassler]

Are you releasing the adjuster ratchet? If not, you are ruining the adjuster. That's why you have to manually adjust them.

[teamdada]

3/4 is too much and never in my life heard of that. Also, you never showed releasing brakes. Do you know what you’re doing bubs?

[lbz]

What's all that oil all over the brakes.. doesn't look like grease

[TravelinArtBook]

How would you tell if a semi tractor comes with automatic slack adjusters?

[Flatlandproductionz]

Yea, now the way you just tighten them will be riding the 💩 out of that drum. Wth

[ahmadsuliman]

That sound when you turned the wrench means you never released the air brake…