automatic slack adjuster adjustment

Michael Day. ZF Commercial Vehicle Systems North America the largest and most comprehensive commercial vehicle technology supplier and integrator unites trusted brands ZF, WABCO, TRW, Lemforder, and Sachs. 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. Select your vehicle Make, Year, and Model, and we'll show you products engineered for your vehicle. Our selection of clutch & flywheel assemblies offer ease of installation, performance, and reliability. In 2006, the International Association of Fire Chiefs (IAFC) warned the fire service of this potential problem (IAFC 2006) following an investigative report released by the National Transportation Safety Board (NTSB 2006). 0000317669 00000 n Crawl beneath the trucks bed to locate a turnbuckle. Our slack adjusters offer a few unique features that make them the superior choice in the commercial vehicle industry, such as a lifetime lubrication design and enhanced powder coated housing. 25. >> r : P $ : . What we will do is back it off further than one half turn. 0000035854 00000 n Proper control of the slack adjusters on the truck is essential for safe truck operation. Automatic slack adjuster for on-highway, linehaul and vocational applications delivers shorter stopping distances and offers longer lining life. NTSB [2007]. 0000033933 00000 n 0000034294 00000 n stream /Root 36 0 R The manual adjustment of ASAs may contribute to unexpected brake failure When you need to replace your slack adjusters, it is very important to find the correct part that matches your equipment to ensure a safely operating braking system. %PDF-1.3 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. This societal shift has placed immense pressure on trucking and transportation companies to carry and deliver products faster than ever before. 4,000 to 6,000 Standard Chassis Each Preventative miles or every Grease Maintenance 3 months Service Interval Every automatic brake adjuster requires inspection at periodic . There are many factors that can cause an automatic slack adjuster to overstroke, but none of these will be remedied with a manual readjustment. An added benefit of WABCO EasyFit Automatic Slack Adjusters is its lifetime lubrication design, made for self-energized sealing, which means no greasing is required. Yet despite years of warnings, automatic slack adjusters (ASA). A manual adjustment would probably need to be adjusted every 10,000 miles in the typical highway environment in the United States. The ratchet is spring loaded. Never use an impact wrench to adjust. Trailer Brake Adjustment . Then we will take a wrench and put it on the adjust nut and apply the brakes.Release, Apply, Release, Apply, Release, Apply, Release.As you can see the wrench is turning. Read more aboutBrake FMSCA Regulations. Get some insights on the operation and maintenance of trailer roll stability systems that are designed to help prevent rollovers. He covers the basic methods to adjust as well as. Automatic slack adjusters are a basic, but important, component to promote optimum brake security and safety while helping vehicles stay in operationand of coursepass brake inspections. 0000326704 00000 n Listen for air leaks, as this can reduce your braking performance. However, manual slack adjuster periodically needs to be adjusted to properly function and operate at peak performance and compensate for lining wear. Inspect the return spring on the air chamber or on the service side of double diaphragm spring brakes. 6\") HAL-40010211 (28 Spline 5-1/2'':) Visit our Ebay store at https://www.ebay.com/usr/royaltrailersales. 95 0 obj Locate the adjustment mechanism on the clearance adjuster. How to Measure and Identify a Slack Adjuster Spline Teeth How your clutch system plays an indispensable role for your drivetrain, Park the truck or trailer on level ground, Ensure the parking brake if OFF so can move the slack adjusters, Pull on the slack adjuster. Our Michigan Based Parts Experts Can Help. These slacks can be used at any of the lengths available. Safety Advisory: Manual Adjustment of Automatic Slack Adjusters May Contribute to Unexpected Brake Failure on Automotive Fire Apparatuspdf icon [PDF 363 KB]. At TruckSpring we have been working with Automann since their beginning. Apply more turning power with less fatigue to the hand. "After you've run through that list, verify the slack adjuster's performance by following the manufacturer's instructions on conducting a functional check," McComsey said. Release the brake system at full pressure, release the emergency brake and press the air valve to release the brakes. As fleets strive to ensure their equipment is operating properly and safely this new product will assist . Clearance adjustment means that the pushrod in the air chamber can be easily adjusted to a predetermined tolerance, maintaining optimal braking performance. 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. If a wheel-end equipped with an automatic slack adjuster is out of adjustment, Bendix's first - and most important - piece of advice is this: Do not manually adjust the adjuster. Bendix Commercial Vehicle Systems LLC 35500 Chester Road Avon, Ohio 44011 . 1.5 inch 28 spline, 5.5 inch arm length, 1/2 inch arm hole diameter. When an ASA is found to be out of adjustment it signifies the existence of a larger problem with the braking system that needs to be corrected immediately. "Properly installed and maintained automatic slack adjusters should never need adjusting after the initial setup," Kromer said. It maintains proper brake adjustment on the wheel end. 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. Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. . Upon completing these inspections, verify the slack adjusters performance by following the manufacturers instructions on conducting a functional check. NFPA [2006]. Technical advice on the topics that matter most. Inspect the clevis pins connecting the chamber to the automatic slack adjuster to ensure they turn freely, and coat with an anti-seize lubricant. That means the brake is trying to adjust itself back up under application.Adjusting an automatic slack adjuster is fairly simple. /Prev 367465 Additionally, fire departments should adhere to manufacturer guidelines and recommendations and applicable federal, state or provincial, and local laws regarding apparatus inspection and maintenance [NFPA1911]. Now, I own my garage in Miami, Florida. Turn the adjustment screw head on the back of the suspension adjuster counterclockwise to loosen it. We offer premium products and popular brands. Discussion in 'Trucks [ Eighteen Wheelers ]' started by Dusty Boots, Sep 7, 2013. 0000021340 00000 n I graduated from Michigan with Bachelor in Automotive Engineering and Management. However, if you are driving a vehicle that predates this regulation, manual adjusters require fine-tuning. Move to the trucks front and depress the air brake lever. An easy way to determine the number of teeth is to simply count them. Establish procedures to ensure maintenance on fire apparatus is conducted as recommended in NFPA 1911, Ensure maintenance is only performed by qualified technicians who meet NFPA 1071. Using a rubber mallet, tap the side of the trailer tensioner toward the end of the cam rod S until the tensioner is released. Automatic slack adjusters remove the slack in the brake linkage without the need for manual adjustment. Plus, if there are perishable goods in transit they could spoil and go to waste, which puts the driver at risk for receiving payment for the trip. Each company we work with has specific experience requirements for their drivers. Therefore, it does not require periodic manual adjustment and is highly recommendednotto adjust unless absolutely necessary or in an emergency situation. For more information on service or repairs please contact one of our locations or visit our website www.badger-utility.comHi, I am Aaron with Badger Utility, and I am going to show you how to adjust automatic slack adjusters and check their functionality. Again, pointing out one of the key differentiators of WABCO automatic slack adjusters which is long-term lubrication EasyFit Automatic Slack Adjusters are engineered with a self-energized sealing design. Check the CVSA guidelines to determine the maximum allowable stroke, which is based on the chamber size and type. They automatically adjust for the gradual brake lining wear. NFPA 1911 Standard for the inspection, maintenance, testing, and retirement of in-service automotive fire apparatus. For example, a slack adjuster with an arm span of 5.0 and 6.0 inch can be used in applications where a 5 inch or 6 inch arm span is needed. Maintain the open position of the lever. 0000040076 00000 n CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. Automatic Slack Adjuster as a component of the foundation brakes. Turn the slack adjuster with an appropriate wrench. Should you require any additional information, contactWheelco customer serviceto assist you. Details, Meritor type automatic slack adjuster R803054. >> Adjust the manual clearance screw. When you back it off it takes some effort to overcome the spring force and skip over the teeth. Automatic slack adjusters are designed to require little maintenance. Because properly installed, operating, and lubricated automatic slack adjusters should never need adjusting after the initial setup, aside from brake relining, Bendix also emphasizes that an out-of-adjustment ASA should never simply be manually adjusted to correct an out-of adjustment brake stroke. Manual adjustment of ASAs should only be done by qualified technicians during installation or when absolutely necessary to move the apparatus to a repair facility (NTSB 2006, 2007; IAFC 2006). 0000317634 00000 n In this scenario, the downtime incurred includes the time it takes to obtain a vehicle inspection, as well as a mobile service technician to arrive and repair the part. Terms | Details, Meritor Type ABA Automatic Slack Adjuster R801041. Once the automatic slack adjuster itself has been inspected, use the following checklist to examine other wheel-end components and fix any situations that can lead to overstroke. Those gears don't turn too much. 0000035324 00000 n What fleets would lose in downtime pays for itself, hundreds of times over.. Ultimately, the truck needs servicing and the replacement of a part. They're called automatic slack adjusters for a reason, and the manufacturers that make them want to keep it that way. What You Need to Know About WABCO Aftermarket Programming, 14% of commercial motor vehicles inspected, Designed for lifetime greasing (eliminating the need for regreasing), Superior durability and corrosion protection against impact, abrasion, and harsh conditions, Unique adjuster mechanism that aims to consistently prevent over-adjustment and reduces pulling. Quincy, MA: National Fire Protection Association. Once the lining meets the drum the adjusting mechanism disengages. Customer driven is more than just offering you advice, giving time-honored service or contributing the latest tech-support. Clear all. Further, the NTSB has recommended, and NIOSH agrees, that all drivers of fire apparatus equipped with air brakes must undergo training and testing to demonstrate proficiency in the inspection and operation of air-braked vehicles. But how many drivers or shop techs actually did that daily? The identification should be no less than two inches away from the compressed air brake chambers back. Also, I hold degrees in Electrical and Automation Engineering (BEng), Automatic and Industrial Electronic Engineering, and Automotive Technology. Shop O'Reilly Auto Parts online. Includes 135.H0563 bracket kit. WABCO brings over 150 years of innovation and commercial vehicle transportation expertise and is a global leader in braking and stability systems including Electronic braking, Air Disc Brakes, iABS and automatic emergency braking. Our team helps customers like you get answers to their unique problems. You should not have more than a tenth of an inch between the brake lining and the drum, and the pushrod travel should be no more than 2 inches.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'automotiveex_com-medrectangle-4','ezslot_6',168,'0','0'])};__ez_fad_position('div-gpt-ad-automotiveex_com-medrectangle-4-0'); Adjust the air brakes and park the truck in a safe location. 4.5 out of 5 stars 96. Find many great new & used options and get the best deals for Self-Setting Automatic Brake Adjuster For Haldex 400-26231, 409-26019; 40026231 at the best online prices at eBay! 0000002218 00000 n Get help the way you want - Phone, text chat or email. Making sure that all four wheel ends are adjusted properly will keep your trailer stopping as it should. The purpose of the program is to investigate fire fighter line-of-duty deaths and formulate recommendations for preventing future deaths and injuries. Check the brake drums for maximum diameter and surface finish, and replace if necessary. Automatic Slack Adjuster. Evaluate the brakes friction blocks for wear level and cracks, replacing the friction if necessary. Thus, fleet managers are constantly seeking new ways to enhance their operations to become more efficient, cut unnecessary costs, and enhance uptime to deliver goods faster. I love cars and love to share everything about them with my readers. NIOSH would like to renew efforts to bring this to the attention of all U.S. fire departments, fire fighters, and fleet maintenance departments who are tasked with preventive maintenance or operation of apparatus equipped with ASAs. /Linearized 1 Privacy | 2007 ed. Wheelco Truck & Trailer Parts 61 Years, Since 1961! Tighten it as far as possible; you should see the Slugs move and pull the brake shoes toward the drum. Automatic slack adjusters have an adjusting mechanism that adjusts for brake lining wear. Might need to do that once a year or whatever. (d) Linings and pads. 0000319254 00000 n If the air brake chamber push rod stroke is within limits during operation, no adjustment occurs. Details, Haldex Type Automatic Slack Adjuster. On April 27, 2022, 46 jurisdictions in the U.S. and Canada preformed an unannounced one-day inspection and enforcement initiative focusing on brake systems and components. 0 Lang Tools Automatic Slack Adjuster Release Tool and Wrench . Both manual and automatic slack adjusters have three qualifications which can be easily measured. This Haldex AA1 Clearance Sensing Automatic Slack Adjuster makes the most consistent and precise gradual adjustments for optimum lining-to-drum clearance. However, they should be checked daily to ensure they continue to perform well. 4 Years Free shipping for many products! driver training. Find many great new & used options and get the best deals for Haldex Automatic Brake Adjuster Kit - DS Slack Adjusters; ZZ40010071 at the best online prices at eBay! We stock a complete line of Automann heavy duty truck parts and have a great working relationship with Automann. Located in Saginaw, Michigan, and established in 1976, we've been selling online since 2001. Details, Greasable clevis pin CP138, 1/2 inch diameter x 1-3/8 inches long with cotter key. /ID [<28bf4e5e4e758a4164004e56fffa0108><28bf4e5e4e758a4164004e56fffa0108>] "Dimensions and the geometry have to be maintained throughout the . Bendix reminds vehicle owners of its clear, step-by-step guidelines for addressing out-of-adjustment wheel-ends equipped with automatic slack adjusters. If an Automann product failure results from a manufacturer defect, contact us at Michigan Truck Spring for support. Eliminate the wheel chocks from the rear of the wheels. Bendix Commercial Vehicle Systems LLC; Knowledge-dock.com; Brake-school.com; GET IN TOUCH. /L 368301 Instead, investigatewhythe brake is over the stroke limit. Also, remove the old adjuster on the S-cam rod and replace it with the new one.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'automotiveex_com-box-4','ezslot_7',169,'0','0'])};__ez_fad_position('div-gpt-ad-automotiveex_com-box-4-0'); Return to the truck and paint the connecting rod that connects to the air brake chambers rear. 0000000017 00000 n These cookies may also be used for advertising purposes by these third parties. Wheelco is expanding and opening another distribution center with a store front that will be open November 7th, 2022. The suspension adjustment is now free of the S-cam. Slack adjusters are available in two types: manual slack adjusters and automatic slack adjusters. Jaime Beisch, West Region Fleet Sales Leader at ZF CV Systems North America LLC, states, Some fleets measure downtime in minutes, versus days, so the economics of having a truck be put out of service due to slack adjuster issues is outrageous, when you consider the little-to-no additional cost to install quality automatic slack adjusters that require low maintenance. This brake adjuster is already backed off one half of a turn. Once your WABCO slack adjusters are fitted and installed on your vehicle, you do not have to worry about manually adjusting them. Automatic slack adjuster (ASA) for on-highway, linehaul and vocational applications delivers shorter stopping distances and offers longer lining life. You can review and change the way we collect information below. 0000306607 00000 n Typically ships in 7 to 10 business days. Often, improper adjustment is due to operator negligence. Also check the manufacturers recommendations for lubrication of the adjuster, noting the suggested mileage, frequency, and lubricant grade. The experts at Bendix Commercial Vehicle Systems LLC recognize that proper brake stroke adjustment and maintenance are critical to commercial vehicle and roadway safety. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. Copyright 2022 Michigan Truck Spring of Saginaw, Inc. All Rights Reserved. The automatic slack adjuster is designed to compensate for brake lining and drum wear to maintain a constant actuator stroke. 1.5 inch-10, 6.0 inch arm length, Unhanded. You will only need to adjust the automatic brake adjuster during a base brake repair or initial installation. I have worked at General Motors Company for over five years as the Marketing Operations Production Coordinator. The site was originally created for auto enthusiasts of all types, including enthusiasts who like supercars, drive fast, or just simply enjoy the presence of other car lovers. 0000002646 00000 n 0000319627 00000 n There are two types of slack adjusters: the stroke and clearance adjuster. Our slack adjuster knowledge is immeasurable. Find many great new & used options and get the best deals for 801073 Automatic Slack Adjuster Replaces Merit 1.5"X28 Spline 5.5" Arm Lenath at the best online prices at eBay! This clears the braking system of all air and frees the moveable adjustments. Cookie Policy | Part of the brake products portfolio, WABCO automatic slack adjusters are are designed to reduce service time and keep vehicles on the road. 1.5 inch 10 spline, 5.5 and 6. Our Michigan Based Parts Experts Can Help. 4.8 (2,503) $4538 $69.99 FREE delivery Wed, Mar 8 Titan - 2 Pc. 4.5 out of 5 stars 548. How to adjust automatic slack adjuster TRUCKING TIPS DIY 22K subscribers Subscribe 105K views 4 years ago Lang Tools 7578 7/16" Automatic Slack Adjuster Wrench https://amzn.to/3b7OSdM Show. To understand how we can be your partner in commercial vehicle solutions, visit our website. Automatic Slack Adjuster(left), Automatic Slack Adjuster as a component of the foundation brakes(right). The clearance adjuster is an arm attached to the pushrod on the brake unit. Compare. Proper adjustment of the adjusters is essential for the trailer brakes to function properly. Automatic slack adjusters that are properly maintained require no manual adjustments. K Tool International 70130 Heavy Duty Truck Air Brake Automatic Slack Adjuster Wrench Set, Fork End Release, Double Square Offset Reversible Wrench. 0000033728 00000 n Completely decelerate and re-mark the pushrod to calculate the push rods stroke length and measure between the two markers. 35 61 $147.94. If it moves more than 1 inch or 25mm where the pushrod is attached it most likely requires adjustments. 0000327073 00000 n I do mine every day, I think it keeps everything working and less likely to seize up. Release the anti-reverse mechanism without prying. You will be subject to the destination website's privacy policy when you follow the link. The tendency to manually adjust auto-slacks is longstanding, as Quimby's original report emphasized, and out-of-service brake violations continued to top the annual Commercial Vehicle Safety. When an ASA is found to be out of adjustment, it signifies the existence of a larger braking system problem that needs correction. /Type /Catalog 0000305641 00000 n 11:00 am. All Rights Reserved. They help us to know which pages are the most and least popular and see how visitors move around the site. of all U.S. fire departments, fire fighters, and fleet maintenance departments who are tasked with preventive maintenance or operation of apparatus equipped with ASAs. Vehicles found to have ASAs that are out of adjustment should be taken out-of-service immediately until corrective brake service is completed. Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. Details, A Crewson Brunner type automatic slack adjuster with 1.25 inch Camshaft Diameter, 10 Spline, 5. A grease screw on the adjusters enables lubrication during normal chassis maintenance.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'automotiveex_com-banner-1','ezslot_8',170,'0','0'])};__ez_fad_position('div-gpt-ad-automotiveex_com-banner-1-0'); On cam-type brakes, clearance adjusters are mechanical connectors between the chamber pressure rod and the camshaft. Depending on the application, the adjusters should be replaced after four to five years of usage.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'automotiveex_com-large-leaderboard-2','ezslot_9',171,'0','0'])};__ez_fad_position('div-gpt-ad-automotiveex_com-large-leaderboard-2-0'); The friction surfaces adapt and compensate for the play in the stroke as it wears. Probably overkill. In order for you to receive the best possible offers, please make sure your answers above are accurate prior to submitting. Details, Automatic slack adjuster guide pawl kit for All Meritor ASAs. So in that regard, he is correct. OEM quality manual and automatic slack adjusters for commercial trucks and trailer braking systems. Automatic Slack Adjuster. Description: SLACK ADJUSTER, Brand: Meritor [MERTR], Unit of Measure: Each, VMRS Code: 013-017-017 [Slack Adjuster - Automatic, Position Not Specified], . How To Optimize NVIDIA Control Panel For Gaming & Performance, Rent-to-Own Trailer Financing | A Blessing in Disguise, 6 Upgrades and Accessories for Every Serious UTE Driver, How to Tow a 44 Truck on a Dolly | Full Process Explained, How to Get Water Out Of Your Exhaust | 6 Methods Explained, How Close to Sidewall Can a Tire is Patched | An Expert Guide, How to Remove A GPS Tracker from the Car | In-Depth Guide, How to Tighten the Power Steering Belt | 5 Methods by Expert. /Size 96 Do not manually adjust automatic slack adjusters after initial adjustment unless you are doing a complete brake overhaul. Now, I own my garage in Miami, Florida. 1.5 inch 28 spline, 5.5 inch arm length, 1/2 inch arm hole diameter. Because trucking fleets cannot afford to have their trucks and trailers out of service, as it disrupts revenue, customer satisfaction, and brand loyalty, managers are often tasked with the large responsibility of quickly resolving problems in order to keep their operations running smoothly. all times. 3. Automatic adjusters should not be operated as manual adjusters except as may be necessary to get the vehicle off the road for service. Note that the Versajust automatic slack adjuster is compatible with Bendix ASA-5 automatic slack adjusters. (c) Slack adjusters. Get back inside the truck and depress the air brake lever to release the air brakes. Automatic Slack Adjusters Manual Slack Adjusters updown Compare You can compare up to 4 part numbers. It is important to lock the tires before the inspection so that the trailer cannot move. Haldex type automatic slack adjuster 135.S2844 for trailer axles with 12-1/4 inch brakes. With current supply chain challenges, it can take several days to service and restore a single vehicle, especially if new or replacement parts are needed to complete the repair. The adjusters have a finite lifespan; they do not outlast the vehicle. Automatic Slack Adjusters (ASA) are one key part of your braking system that is often overlooked or ignored. The program does not seek to determine fault or place blame on fire departments or individual fire fighters but to learn from the tragic events and prevent future similar events. Replaces OEM numbers 40020304, 400-20304, 409-20010 and 40920010. 0000317905 00000 n Inspect the clevis pins connecting the chamber to the automatic slack adjuster to ensure they turn freely and are coated with an anti-seize lubricant. Any and all content from such third parties is not endorsed by, and does not represent, the opinions or views of Royal. Meritor Part Numbers:R803195, R803110, R803112, R803116, Stemco Part Numbers:MK41100S, MK42100S, MK42106S, MK43106S, Gunite Part Numbers:AS1132, AS1140, AS1141, AS1144. When this happens, the slack adjuster will automatically adjust during the return stroke to maintain the correct shoe-to-drum clearance. The part is configured to transmit force from the brake actuator to the brake camshaft, so the stroke of the brake cylinders remains unchanged. The slack adjuster is the component that is used to adjust the brakes using transfer of torque by converting convert linear motion into the rotary motion of the S-cam. The slack adjuster assembly transmits the braking torque to the S-cam and facilitates the adjustment of clearance between the brake lining (brake pad) and the brake drum. Pressurize the system and brake with normal pressure. Every month 400 people find a job with the help of TruckersReport. 0000318167 00000 n The brake shoes press against the brake drum, applying the brake. Turn the clearance adjuster a quarter to a half turn so that there is a small gap between the drum and the liner. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. 4,000 to 6,000 Standard Chassis Each Preventative miles or every Grease Maintenance 3 months Service Interval Every automatic brake adjuster requires inspection at periodic . I am the founder of the. /Pages 33 0 R Brake safety is key for not only vehicles, but also drivers. 0000318506 00000 n Automann is committed to the long term success of its distributors and continues to invest in expanding its product offering and improving its services. Details, Haldex type self-securing automatic slack adjuster with 1.5 inch Camshaft Diameter, 28 Spline, 6. Out-of-adjustment brakes is one of the most common problems found in roadside inspection. Services 4 slack adjusters. It still sounds like you are stripping it out, but that is just the sound of a good spring. 1 Year Automatic adjusters should not be operated as manual adjusters except as may be necessary to get the vehicle off the road for service. To view our automatic slack adjuster installation kits, visit the WABCO Customer Care Center. Most people don't think about water when they are buying a car.

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automatic slack adjuster adjustment