Automatic Slack Adjuster

Рет қаралды 145,919

Күн бұрын

How to adjust the automatic slack adjuster and maintenance for the automatic slack adjuster.
There are several slack adjusters but here are two of the most common sizes:
Haldex Automatic Slack Adjuster - HAL-40010212 (28 Spline. 6")
HAL-40010211 (28 Spline 5-1/2'':)
Visit our Ebay store at www.ebay.com/usr/royaltrailer....
New items posted daily!
-------------
Thank you for visiting Royal Truck & Trailer’s (“Royal’s”) KZfaq Page (“Page”). By using, viewing, and/or otherwise engaging with the content on this Page, you acknowledge and agree to the following:
The content provided on this Page: (a) is intended only to provide general guidance; (b) is not intended to constitute professional advice or professional services; and (c) should never be considered a substitute for professional advice or professional services provided by an individual or company retained by you to provide professional advice or professional services to you. Nothing on this Page should be construed as creating a professional, contractual, or other relationship between you and Royal or anyone else.
Royal makes no representations or warranties of any kind concerning the accuracy, completeness, or usefulness of the content provided on this Page. Royal reserves the right to change or replace the content provided on this Page at any time.
Visitors to this Page may post comments or other content in response to the content provided on this Page. Any and all content from such third parties is not endorsed by, and does not represent, the opinions or views of Royal. While Royal does not generally regulate the content posted by third parties on this Page, Royal does reserve the right to remove content and/or block users at its discretion.
You choose to use the information provided on this Page solely at your own risk. Royal shall not be liable to you for any losses or damages of any kind, which arise from, or relate to, your use, viewing, or other engagement with this Page. You agree to indemnify, defend, and hold harmless Royal from and against all claims, damages, or any other losses (including attorney’s fees), which arise from, or relate to, your use, viewing, or other engagement with this Page.
All disputes arising out of, or related to, your use, viewing, or other engagement with this Page shall be (a) governed by the laws of the State of Michigan and (b) resolved exclusively in the appropriate federal or state court in the State of Michigan.

Пікірлер: 41

@danielww9022 3 жыл бұрын

Backing it off against the ratcheting gears is exactly what destroys an automatic adjuster. They're not like the old ones where you simply close the brake against the drum and then back it off a bit. If you've got automatic slack adjusters, have someone press the brake pedal (about 30-35 psi is all you need) while you measure the push rod throw. Your helper presses the pedal, you measure the throw. If you need to tighten it up, then your helper releases the pedal so that you can give it another turn. This way allows you to tighten it little by little until it's where you want it, instead of destroying it. An even better way to do this is have have your helper do the wrenching while you press the brake pedal. It's a mess down there!

@BartholomewHunt87 Жыл бұрын

How much push rod throw is optimal? The video mentions 2'', is that standard?

@danielww9022 Жыл бұрын

@@BartholomewHunt87 not more than 2 inches. Anything over that is a violation, & if 20% or more of your brakes are in violation, the cop can red tag the truck until you get the brakes adjusted to within specs. Most of the year, I adjust mine to about a 1 inch throw. In winter months, though, I'll back them off to about 1½ inches so that they're not too grabby when I'm driving the ice rinks. Hope this helps. Hmu if you've got any more questions.

@johnysilver1853 3 жыл бұрын

I like the video quick and simple straight to the point!

@MrKingsleyK 9 ай бұрын

Thanks for your professional truck mechanic advice

@particles343 2 жыл бұрын

Thank you for thus video!

@RoyalTruckUtilityTrailer 2 жыл бұрын

Thanks for watching!

@EdsonA503 28 күн бұрын

Thank you.

@johnmcbeth5563 Жыл бұрын

Thank you

@stevenjones5850 Жыл бұрын

Trying to find out that automatic said one adjustment Rod attached to the Oder hole in the clevis pin so manually adjust slacks

@christopherjamieson4237 3 жыл бұрын

What was the stroke measurement before you adjusted the brakes? Jumping right to making adjustments on an automatic adjuster could be covering up other issues.

@RoyalTruckUtilityTrailer 3 жыл бұрын

Christopher Jamieson, good point and thanks for watching. Correct, if the stroke is too long something must be worn to allow the brake to be out of adjustment.

@santkumarhooda3276 2 жыл бұрын

Thanks

@RoyalTruckUtilityTrailer 2 жыл бұрын

Thank you for watching!

@markroberts4667 2 жыл бұрын

Thanks Very Educational...

@christopherkane2842 7 ай бұрын

That was great thanks for sharing it

@jayloco6693 10 ай бұрын

We did a complete brake job set them 1/2 turn like you said but my rotors are constantly hot not to the point of catching on fire, but there is definitely some friction going on. Can you please tell me what you think the problem is?

@jayloco6693 10 ай бұрын

ABS light and traction control light also coming on and I do not see any air leeks

@chris76-01 3 жыл бұрын

What does it mean if an auto slack adjuster starts out in correct adjustment but by the end of a long trip, it is far out of adjustment and the brake pads won't even touch the drum when the brakes are applied?

@KeithPolin 3 жыл бұрын

That means you proally need a new slack adjuster obviously.

@jonelliot854 5 ай бұрын

Defective slack adjuster. Replace.

@elmtreeroad Ай бұрын

The slack adjuster seen in this video is likely a Haldex ASA. They’re use a 7/16 socket for adjustment. Some utilize a memory pin that can be affixed to the cam tube or chamber mounting stud. This serves as a reference point for the slack to know when it needs to internally adjust based on travel. I’ve seen apprentices forget to adjust them properly or even tighten the hardware. This would result in something similar to what you’re describing brother.. cheers

@joseaneslll8584 2 жыл бұрын

My Freightliner back driver side brake is stuck. I tried to manually adjust the slack adjuster it made that grunting but didn't release the brakes.

@multivrios 2 жыл бұрын

Your brakes and drums worned out

@795owner 2 жыл бұрын

Back them off like you did then smack the edge of the drum with a hammer. Make sure you have the wheels chocked as the truck might lurch forward when they release if all other brakes are properly releasing

@LMdeGeneres Жыл бұрын

Some slack adjuster have a tab that needs pulled out to make the adjustment

@bradthomas5911 Жыл бұрын

Lurching forward does not need to happen if the tractor brakes are applied lol

@bradthomas5911 Жыл бұрын

Or vice versa if it's the tractor than just release the tractor brakes but apply the trailer brakes

@denrickliburd2963 Жыл бұрын

Can you replace manual slack adjusters with automatic ones?

@helloneighbor11 4 ай бұрын

Yes

@johndove5902 3 жыл бұрын

Question:what was the red tool for?

@RoyalTruckUtilityTrailer 3 жыл бұрын

The red tool is a specialty tool made by snap on tools specifically for adjusting slack adjusters. It is nice to have, but not required to make the adjustment.

@donaldpetrey5843 2 жыл бұрын

What about a slack adjuster that’s seized won’t tighten or release lol fml ran into that today.

@helloneighbor11 4 ай бұрын

You can buy pullers that are mad to fit on slack adjusters. If you're not someone that does it often it may be worth it to just brute force it

@Somatropin 3 жыл бұрын

Our Volvo has a slackAdjuster

@jamesgrimes4406 2 жыл бұрын

Why can’t anyone ever have the trailer I got it’s a 2017 Great Dane the adjustment but looks totally different

@RoyalTruckUtilityTrailer 2 жыл бұрын

There's several options/brands of automatic slack adjusters to choose from. All are similar to adjust. The main thing to check is the pushrod travel. Thanks for watching!

@daviddockstader1773 Жыл бұрын

Why would my auto adjuster always get to tight on there own

@marceloevera2009 3 жыл бұрын

theres no adjustment for automatic slackers

@Diesel_Tech 11 ай бұрын

I’m pretty sure that’s not how that works. Automatic slack adjusters for air brake systems adjust as the shoe lining wears down they should adjust to take up slack. What you did was check to see if your tractor protection is working correctly. But i maybe wrong