With the right slack adjuster, you can protect your brakes and provide a safer drive and easier maintenance. Figures show typical brackets for automatic brake adjuster applications on steer axle brake assemblies. Maintenance manual 4 cam brakes and automatic slack adjusters. Automatic slack adjuster guide pawl kit for all meritor asas.
Built to be robust and reliable, the industrys lightestweight automatic slack adjuster optimizes brake performance by increasing payload capacity and enhancing camshaft bracket life. Meritor heavy vehicle systems, llc, reserves the right to revise the information presented or to. Brake attaching hardware is broken, loose or missing. Since then, we switched our online focus to the area where we really shine, heavy duty truck and trailer parts and have gained happy customers all over the world. Weve been in the heavy duty truck and trailer parts business for decades, and started selling light truck accessories online in 2000. Mar 23, 2010 this feature is not available right now. About us founded in 1978, fleet brake serves canadas industrial, heavyduty, logging, mining, agricultural, and oilfield industries. Meritor stroke sensing asas must be set at a 101 degree angle. Meritor brakes that use automatic slack adjusters o cam brakes, including q plus tm lx500 and mx500.
Meritor automatic slack adjusters asas should not need to be manually adjusted in. Upon brake application, the brake adjuster rotates and moves the shoes into contact with the drum. The meritor bullpen is a convenient web portal designed for dealers, fleets, service garages and alike to access meritors product information and training in one central location. Meritor automatic brake slack adjuster position bsap. Full product catalog view our full catalog online or download a pdf. Gawr 165 al approved for rsd drive axle brakes on daimler, navistar and paccar vehicles using 16. The clearance notch corresponds to the normal liningtodrum clearance. Haldex clearance cone clutch belleville spring yes on apply drilled buttress yes no no no no no no yes yes yes yes buttress buttress. Always replace original components with genuine meritor replacement parts. Premiumquality slack adjusters developed to replace popular industry oe models from meritor, gunite, haldex, bendix and crewson. Maintenance manual 1 preventive maintenance and lubrication. Different brake chamber sizes are used on the same axle. As a seller of the most recognized and trusted brand in student transportation vehicles, your nearest blue bird authorized dealer is your best source for original equipment and aftermarket parts to keep your.
We carry a full line of commercial truck replacement brake parts including camshafts, brake drums, and. Spec the right meritor clevis for the application asa air brake chamber 1 the asa templates are not interchangeable. Adjustment on automatic slack adjusters trucker forum. Cl of brake to cl of slack adjuster item description part number 1 camshaft lhrh see table below 2 cam head bearing assembly 15224821 3 screw, bearing 99546002 4 inner boot, cam end 21224729 4a outer boot, cam end 21224730 5 tie wrap 21221065 6 camshaft bracket 21220982 6a camshaft bracket axles built after sept 99 21020300. This reduces brake maintenance costs and vehicle safety. Automatic slack adjusters have a direct effect on the life and performance of foundation drum brakes, as well as compliance and safety. Meritor heavy vehicle systems 50 calarco drive derrimut vic 3030 australia phone. Avoid costly fines and downtime make sure your brakes are always operating at their best. The unhanded design purpose is to eliminate having to stock pairs of slacks.
The adjusting bolt is the 916 hex head shown just below the small grease fitting. Meritor drive axles using t30 brake chambers and 5. Consult the gunite automatic slack adjuster parts catalog for clevis kit descriptions and interchange information. Installation and adjustment procedures for meritor. Different length slack adjusters are used on the same axle. Thank you for choosing blue birdand blue bird parts. View and download bendix asa5 automatic slack adjuster manual online. Most meritor automatic slack adjusters manufactured after january 1990 have lubrication holes in the gear splines.
Premiumquality slack adjusters developed to replace popular industry oe models from. Automatic slack adjuster before the specified time or mileage intervals inspection procedure 94 cam brakes, all models. Steering or suspension hardware or components are loose. Use the correct meritor asa template to measure the length of the slack adjuster 1. Lubricant can pump through the holes and onto the splines. Each tomplato is to up clevis, push and at a so that the most efficient adnstment ig obtained. Meritor heavy vehicle systems, llc, reserves the right to revise the information presented or to discontinue the production of parts described at any time. Read and understand all instructions and procedures before. When installing or replacing a gunite automatic slack adjuster, it is recommended that a new clevis assembly be installed in accordance with the gunite automatic slack adjuster service manual. Meritor automatic slack adjusters asas should not need to be manually adjusted in service. Meritor r803106 automatic slack adjuster type 3, 1. Automatic slack adjuster international truck, lease. Apr 09, 2015 this feature is not available right now. The meritor asa, designed for a variety of commercial vehicle applications, is proven in hundreds.
Meritor automatic slack adjusters are colorcoded to brake type and air chamber size. New generation automatic slack adjuster video t9443v o drivetrain plus tm by arvinmeritor technical electronic library on cd. Meritor automatic slack adjuster meritor s unique design keeps brakes in constant adjustment while eliminating the need for frequent underthetruck brake adjustments. Slack adjusters often have a range of holes to suit different mounting situation. Features product and service information on most meritor, zf meritor and meritor wabco products.
Trust meritor the next time you need a sack adjuster. Meritor eav ehicle sstems c est maple oad tro michian usa call or visit meritorcom meritor nc itho in usa evised sp meritor automatic slack adjuster meritors unique design keeps brakes in constant adjustment while eliminating the need for frequent underthetruck brake adjustments. Pry the pull pawl out at least 2 to disengage the teeth. Meritors automatic slack adjusters and clevises are designed to be used as a system. Asa5 automatic slack adjuster automobile parts pdf manual download. Gawr 180 al r301 is the standard meritor 23,000 lb. If the automatic slack adjuster gear has a 10tooth spline. Measure chamber stroke by checking the distance from the chamber to the pin with the brakes released vs. Maintenance manual 4 cam brakes and automatic slack. Automatic slack adjuster asa and air brake chamber. Automatic slack adjusters for commercial brakes meritor. Slack adjusters slack adjusters alliance parts slack adjusters are designed to ensure longlasting performance in heavyduty applications.
Do not operate the actuator rod before you install the slack adjuster. If this continues, the automatic slack adjuster is no longer compensating for the normal wear of the brakes recommended. Installation and adjustment procedures for meritor automatic. In the photo above, the slack adjuster is for the tag axle, and the clevis and rod is from the brake chamber. R801103 by meritor air brake automatic slack adjuster. While in service, it is possible that the boots tie wrap might have been replaced with a tie wrap of a different color than originally installed at manufacture. Maintenance manual 4 cam brakes and automatic slack adjusters supersedes maintenance manual 4b, automatic slack adjusters. Arvinmeritor maintenance manual 4 revised 0409 about this manual this manual provides maintenance and service information for meritor cam brakes and automatic slack adjuster. If the slack adjuster is not a meritor automatic slack adjuster, refer to the manufacturers literature for the correct service procedures. On a regular basis, make a few fullpressure brake applications to cause the adjuster to turn over.
Bendix asa5 automatic slack adjuster manual pdf download. Gunite automatic slack adjuster identification with the launch of gunites new stateoftheart automatic slack adjuster assembly line there has been a change to the identification information formatting. When adjusting a meritor asa you must use the template that correctly matches the clevis. When you install an automatic slack adjuster, you set the brake chamber. Central wheelson drum gauge in background brake application results in the geometry between the cam shaft, slack adjuster. The unhanded design slack is simply one in which the pawl assembly has been moved to the edge of the slack. Alliance automatic slack adjusters include clevis unless otherwise noted. The haldex automatic brake adjuster is a clearance sensing brake adjuster that maintains a nominal distance or clearance between lining and drum. On the meritor slacks that our trucks have, you can stick a screwdriver under the little round button on the side of the slack and pry it outward to disengage the pawl and back off the adjustment without harming the slack adjuster. Check out the deal on meritor r803106 automatic slack adjuster type 3, 1.
Operation isnt dependent on the air chamber return spring and brake shoe return spring condition. Gunites automatic slack adjuster adjusts on the applied stroke, and doesnt react to drum growth encountered during any single brake application. Installation and adjustment procedures for meritor automatic slack adjusters tp9173revised 101 technical bulletin important information meritor automatic slack adjusters asas should not need to be manually adjusted in service. Asas should not have to be adjusted to correct excessive push rod stroke. These may zig zag along the arm of the adjuster and as a result, the selected mounting hole may not align with the centre line of the slack adjuster arm. Cam brakes and automatic slack adjusters the graphic village. This manual provides maintenance and service information for.
If the template and clevis are not matched, the slack adjuster will not adjust the brake properly. This reduces brake maintenance costs and vehicle safety inspection citations while also optimizing brake performance. The identification information now includes the part number, date code and serial number type ii. Unhanded design purpose is to eliminate having to stock pairs of slacks. Above referenced automatic slack adjusters kits are furnished with a clevis that has a 1 pin center distance. The hex head bolt which requires a 916 box or open end wrench is surrounded by a spring loaded sleeve. Adjusters and related components when installed and maintained in accordance. As the leading supplier of automatic slack adjusters asa in north america, meritor understands the delicate relationship between asas and foundation brakes. With brandname parts, expert heavyduty advice, quality service, stateoftheart facilities, and professional staff fleet brake offers secondtonone service and sales of heavyduty parts at competitive prices. The marks by the holes in the small end of the template indicate the length of the slack adjuster. Gunite corporation warrants to the original purchaser that its automatic slack. Automatic slack adjusters asa for onhighway, linehaul and vocational applications deliver shorter stopping distances and offer longer lining life. Asas should not have to be adjusted to correct excessive push rod.
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