BENDIX AIR DISC BRAKE-ADB22X-225-SN6-7-SK7 Instruções de Operação

1Bendix® ADB 22X™, ADB 225™, SN6™, SN7™, SK7™ Air Disc Brakes SD-23-7541DESCRIPTIONBendix® Air Disc Brakes use a floating caliper design to provide fo

10The electronic monitoring system uses sensors installed in a pre-formed slot in the brake pad to allow the status of the pad wear to be monitored.

11FIGURE 18 - TROUBLESHOOTING BENDIX AIR DISC BRAKES GENERAL TROUBLESHOOTING PROCEDURE FLOWCHART

12FIGURE 21 - MAJOR PAD DAMAGE IS NOT ACCEPTABLESection Damaged or MissingFIGURE 20 - MINOR PAD DAMAGE IS ACCEPTABLESmall Amount of Brake Material Chi

13INSPECT ROTORSIdentify if the rotor is a conventional or a splined assembly (see Page 6).Examine the rotor and measure the thickness at thinnest poi

142. CALIPER RUNNING CLEARANCECAUTION: Follow all standard safety procedures including, but not limited to, those on page 2 of this service ma

153. INSPECT ADJUSTER MECHANISMCAUTION: Follow all standard safety procedures including, but not limited to, those on page 2 of this service m

166a39a4a4b6b39bCaliperMovement1Caliper5Guide Pin13Tappet and Boot Assembly 23Adjuster Unit7Brass Bushing10Cover61Shear Adapter68aCap 37Adjuster Cap6c

17GUIDE PIN SEAL INSPECTIONCaliper Guide Pin SealsThe long bearing side guide pin (5) is sealed with the cover (10) and with the inner boot (9). See F

18PAD REPLACEMENTCAUTION: Follow all standard safety procedures including, but not limited to, those on page 2 of this service manual. See

19Inboard PadOutboardInboardBackplate of Pad Check that the tappet and boot assemblies have been fully retracted, as outlined above. Clean the brake

2SAFE MAINTENANCE PRACTICESWARNING! PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH:When working on or around a vehi

20ELECTRONIC WEAR INDICATOR REPLACEMENT(Normally-Closed or Normally-Open Type) See page 10.New wear indicators are normally installed whenever brake p

217. Install the indicator cable (101) in the middle of the pad retainer (11). Insert the cable guide (105a) at one side of the pad retaine

22TAPPET AND BOOT ASSEMBLIES REPLACEMENTCAUTION: Follow all standard safety procedures including, but not limited to, those on page 2 of this s

23INSPECT THE THREADED TUBES (16)For the inspection of the threads, the tubes must be extended, but by less than 1.18 in. (30mm), by turning

24Technicians working with the caliper installed on vehicle: • Install the boots using the press-in tool (B) with the short press-in extension

25CALIPER/CARRIER ASSEMBLY REPLACEMENTCAUTION: Follow all standard safety procedures including, but not limited to, those on page 2 of this ser

26BRAKE ACTUATOR AND SPRING BRAKE REPLACEMENTCAUTION: Replace actuator and spring brakes only with the same as originally installed on the vehi

270.12 in.(3 mm)PushrodareaSealFIGURE 54 - CAP INSTALLATIONSpring Brake RemovalCAUTION: Follow all standard safety procedures - see note above. Be fa

28BW7308 ©2005 Bendix Spicer Foundation Brake LLC All rights reserved. 10/05 Printed in U.S.A.

3Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Safe Maintenance Practices. . . . . . . . . . . . . . . . . . . . 2Air

4FIGURE 4 - SECTIONAL VIEW1Caliper2Carrier5Guide Pin13Tappet and Boot Assembly17Bridge23Adjuster Unit24Turning26Spring Clip27 Spring7Brass Bushing9In

5Uses White Assembly GreaseUses White Assembly GreasePre-AppliedThread Adhesive12/218/2Brake Chamber12/1FIGURE 5 - EXPLODED VIEW - FOR REFERENCE ONLY

6AIR DISC BRAKE IDENTIFICATIONTo determine which version of the Bendix air disc brake is installed, locate the identification label near the guide pin

7PREVENTIVE MAINTENANCERegular inspection and maintenance of air disc brake components is an important part of vehicle maintenance.The maintena

8MECHANICAL BRAKE PAD AND ROTOR WEAR INDICATORSStyle A and B - Inspect position of wear indicator pinStyle C and D - Where the indicator pin is covere

9Backing PlateLines UpStyle C: Where Both the Carrier and Caliper Have an Indicator NotchCompare the relative position of two notches cast into the C