Service Parts Drum Brake Axle. Service Parts Air Disc Brake (ADB) Axle. Maintenance Preventive Maintenance...35 Torque Specifications...

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1 Terms and coverage in this warranty apply only to the United States and Canada. Warranty Ridewell Suspensions warrants the suspension systems manufactured by it to be free of defects in material and workmanship. Warranty coverage applies only to suspensions that have been properly installed, maintained and operated within the rated capacity and recommended application of the suspension. The responsibility for warranty coverage is limited to the repair/replacement of suspension parts. The liability for coverage of purchased components is limited to the original warranty coverage extended by the manufacturer of the purchased part. All work under warranty must have prior written approval from the Ridewell warranty department. Ridewell has the sole discretion and authority to approve or deny a claim and authorize the repair or replacement of suspension parts. All parts must be held until the warranty claim is closed. Parts that need to be returned for warranty evaluation will be issued a Returned Materials Authorization (RMA). Parts must be returned to Ridewell with the transportation charges pre paid. The transportation charges will be reimbursed if the warranty claim is approved. This non-transferable warranty is in lieu of all other expressed or implied warranties or representations, including any implied warranties of merchantability or fitness or any obligations on the part of Ridewell. Ridewell will not be liable for any business interruptions, loss of profits, personal injury, any costs of travel delays or for any other special, indirect, incidental or consequential losses, costs or damages. Contact the Ridewell Warranty Dept. at Ext. 135, for complete warranty information. Trailer Axle Applications and Parts Guide Contents General Information Suspension/Axle Identification... 2 Base Axle (165xxxx) Reference Axle s - Disc Brake/Drum Brake Glossary Wheel-End Component Descriptions... 6 Axle Beam Rating... 7 Service Parts Drum Brake Axle 16.5 x 7.0 Brake Size 5 Standard Axle Standard or 5 3/4 LDA with Cam Enclosure /4 LDA - Short Cam with Enclosure Common Service Parts x 7.5 BrakeSize 5 Standard Axle Drum Brake/Wheel End - Common Service Parts...1 Brake shoes; Dust Shields/Cam Rotation Info....1 Common Axle Components...20 Wheel Bearing Adjustment...21 Service Parts Air Disc Brake (ADB) Axle (D) - ADB Pattern 1 Axle (W, B, L) - ADB Pattern 2 Axles (P) - ADB Pattern 3 & 4 Axle (5 Axle and 5 3/4 LDA) (S) - ADB Pattern 5 Axle Bendix Caliper - Service Parts...32 Wabco Caliper - Service Parts...33 (ADB) Brake Chamber /Port Orientation...34 Maintenance Preventive Maintenance...35 Torque Specifications...36 Automatic Tire Inflation System (ATIS) Information...37 Technology & Maintenance Council (TMC) Information...3 Notes...3 Warranty Information...40 ENG Page 40 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page TrailerAxle-PartsGuide-RevC ENG

2 Suspension Information MODEL: PART NO: SERIAL NO: PART NO. SERIAL NO. CAPACITY TON Figure 1. Ridewell axles have an identification tag listing the Base Axle (165xxxx) and the serial number assigned to the axle tube. Gross Axle WeiGht rating CertifiCAtion is per the final stage manufacturer or Alterer. this product may be Covered under one or more patents. AdditionAl patents may be pending. for more information on patent or suspension/axle CApACity rating ContACt ridewell CorporAtion. (00) Figure 2. The Suspension Identification Tag is located on the left-hand (driver s side) suspension hanger. The (Suspension Model Number) is used to identify the 11-digit Dressed-Axle Configuration (164xxxxxxxx) that has been integrated with the suspension system. Serial Identification Tag Ridewell suspension systems and Ridewell-branded axles can be identified by the and Serial Number listed on the serial identification tags. Axle Body - Serial Tag Ridewell-branded axles have an identification tag attached to the axle tube listing the Base Axle (165xxxx) and the Serial Number (Xxxxxxxxx) of the axle tube (Figure 1). The round axle tube (body) is produced as a 5-inch Standard Axle or a 5 3/4-inch Large Diameter Axle (LDA) in various wall thicknesses and track widths to provide a Base Axle Configuration (Page 3). The axle spindle type, disc or drum brake components and other wheel-end equipment are attached to the base axle to provide a Dressed-Axle Configuration (Page 4). Dressed-axle configurations (164xxxxxxxx) can be purchased separately or integrated at the factory with Ridewell primary and auxiliary axle suspension systems. Suspension Identification Serial Tag The Suspension Serial Tag provides information on the suspension model (Figure 2). The (2XXxxxx or 6XXxxxx) refers to the individual suspension system. The nine-digit Serial Number (1xxxxxxxx) refers to the date and order of manufacture of the suspension. Please refer to both the part number and serial number when contacting Ridewell for customer service, replacement parts and warranty information. Notes and Cautions All work should be performed by a properly trained technician using the proper/special tools and safe work procedures. This guidebook uses two types of service notes to provide safety guidelines, prevent equipment damage and make sure that the axles/components operate correctly. The service notes are defined as: NOTE : Provides additional instructions or procedures to complete tasks and make sure that the axle functions properly. Indicates a hazardous situation or unsafe practice that, if not avoided, could result in equipment damage and serious injury. Page Base Axle Components to Page Reference Base Axle Ridewell-branded axles have a serial identification tag attached to the axle tube (body) listing the Base Axle (165xxxx). The part numbers of the brake and wheel end equipment components connected to the base axle can be found by locating the Base Axle in the chart, then searching for the component on the page number(s) referenced. Contact Ridewell Customer Service if you have a base axle part number that is not listed in the chart. Page ( ) Custom cam length needed - Contact Ridewell Customer Service Page Page D D D D D D D D D D ENG Page 2 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 3 ENG

3 Dressed-Axle Configuration s (164xxxx) Dressed-Axle Part (164xxxx) Item Descriptions Air Disc Brake (p. 22; 24; 2; 30) Tapered Spindle Axle Body Parallel Spindle Axle Body } (p 22) (p 24) (p 2) (p 30) Outer Bearing Inner Bearing 16.5 x 7.0 Drum Brake (pp. -15) Track (Axle Track) The distance between the centerline of two wheels mounted on each axle end. The theoretical centerline of a dual steelwheel configuration is used for the axle track specification. Camber (Optional) Axle camber is defined as the inward or outward angle of tires mounted on the axle. Positive camber means the top of the tires are farther apart than the bottom. Axles are cambered so that there is a bow in the axle. Weight is put on the axle to bring the wheel camber to zero. All cambered axles should be mounted with the center bow up. ABS Prep How wheel end components are prepared to accept an Anti- Lock Braking System. 1. Wheel hub is prepared without an installed tone ring. 2. Hub prep with installed tone ring 3. Both the tone ring and ABS sensor are installed. Spindle Type - Wall The spindle is the part of the axle end that supports the wheel end components. The spindle is either parallel to the axle body or tapered towards the axle end.wall (thickness) affects axle load capacity - a thicker wall has a higher capacity. Brake Rating The maximum stopping power of the brake. Brake rating is dependent on the drum or disc brake type and size, the type of brake pad/shoe lining, the brake input power, the brake s structural rating and the tire static load radius. Brake input power for cam/disc brakes includes air chamber size and slack adjuster length. Brake Rating must not be over- or under-sized for the suspension application. Confirm application with Ridewell x 7.5 Drum Brake (p.16) Figure 3. The 11-digit Dressed-Axle Configuration (164xxxxxxxx) provides a reference for either a standard (5-inch) or a 5 3/4-inch Large Diameter Axle (LDA) configured with a drum or disc brake. ENG Page 4 Trailer Axle-Parts-Guide-RevC Standard Trailer Dimensions Trailer suspensions are designed to fit up onto standard I-beam trailer frames at the beam centers that correspond to standard axle track widths (Figure 4). Installation at wider beam centers will reduce suspension clearances. Installation at narrower beam centers will de-rate the axle beam capacity. NOTE: For other, non-standard beam centers, frames, frame centers, axle track widths and wheel-end equipment, the suspension installer is responsible for verifying clearances, axle capacity, proper fit-up, and any additional required suspension support structure. Trailer Width Axle Track Frame Center Beam Center Air Spring Center Figure 4. Beam Centers - The centerline-to-centerline distance from one trailing arm beam to the other. Trailer Axle-Parts-Guide-RevC Page 5 ENG

4 Wheel-End Equipment The rotating components on the end of an axle including the wheel hub, wheel bearing cups and cones, the hub seal, the hubcap and related equipment such as tire pressure control systems are considered wheel-end equipment. Brake drums/rotors are fastened to the wheel hub. Tire/wheel assemblies are fastened to the hub with studs and nuts. Hub Seal A seal installed into the inboard side of the wheel hub to retain grease or oil and prevent external contamination from entering the interior hub cavity. Hubcap Gasket/Seal A thin, flat seal or O-ring installed between the hubcap and the outboard face of the hub that prevents lubricant from leaking out of the hub and contaminants from entering the hub. Dust Shield A thin sheet of metal bolted in place behind the rotor to protect from rocks, grit, and other debris found on the road. There are two types - rotor shields and brake-pad shields. ABS (Anti-Lock Braking System) ABS system components include a toothed wheel (tone ring) mounted on the hub of each monitored wheel; an electronic sensor that has one end against the tooth wheel to monitor and transmit wheel speed and a sensor clip that holds the sensor in place. ABS Tone Ring (Exciter ring) A notched ring (0-100 equally spaced slots) attached to a wheel hub or behind a brake rotor that is read by an ABS speed sensor to determine the speed of an individual wheel. Hub Piloted Mounting A wheel mounting system in which a boss on the hub is used to locate the center hole of a hub-piloted wheel. Flanged nuts are used to attach the wheel to the flat face of the wheel disc. Stud Piloted Mounting A wheel mounting system in which location and fastening of the wheel are both accomplished by nuts which fit corresponding studs at each wheel bolt hole. 5-inch Axle (Standard) Track Width (Inches) Beam Centers (Inches) Moment Arm (Inches) 5.75-inch Axle Large Diameter Axle (LDA) Track Width (Inches) Tube Wall Axle Beam Axle Beam Capacity Capacity GAWR (lbs) GAWR (lbs) ,000 25, ,000 25, ,000 25, ,000 25, ,37 24, ,05 23, ,253 23, ,72 22, ,22 21, ,753 21, ,000 25, ,000 25, ,000 25, ,000 25, ,37 24, ,05 23, ,253 23, ,72 22, ,22 21, ,753 21,471 Beam Centers (Inches) Moment Arm (Inches) Tube Wall (On-Hwy Use Only) Axle Beam Capacity 0.34 Axle Beam Capacity GAWR (lbs) GAWR (lbs) ,000 25, ,000 25, ,000 25, ,000 25, ,37 24, ,05 23, ,253 23, ,72 22, ,22 21, ,753 21, ,000 25, ,000 25, ,000 25, ,000 25, ,37 24, ,05 23, ,253 23, ,72 22, ,22 21, ,753 21,471 Axle Beam Rating Gross Axle Weight Rating (GAWR) is a term used to specify the maximum load-carrying capacity of a single axle assembly. The GAWR is determined by the component - the axle body, the suspension, brakes, hubs, bearings, and wheels and tires - with the lowest rated capacity. Vehicle manufacturers should follow the instructions supplied by other component manufacturers to determine the ratings for components not produced by Ridewell to determine the correct Gross Axle Weight Rating (GAWR). This will ensure the vehicle manufacturer is in compliance with the appropriate Federal regulations. ENG Page 6 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 7 ENG

5 5 Standard Axle 16.5 x7.0 Brake Size 5 Axle x7.0 Brake Size Service Parts 5 - Standard Axle Tapered Spindle (N) Shown Cam Bearing 1 2 Flat Washer/Locknut/Bolt (Slack Adj. End) Flat Washer S-Cam Service Kit Brake Cam (S-Cam) S-Cam Bearing (Slack Adj. End) 4 12 Thrust Washer Brake Chamber Assembly (See 16.5 Brake Chamber Section) 11 7 Cam Seal (Lip Seal) Snap Ring (Spider End) Slack Adjuster Assembly Push-Rod/Clevis Assembly Large (See Diameter 16.5 Brake Section) Axle (LDA) Long Cam Flat Washer 10 Snap Ring (Slack Adj.) Flat Washer QT Y (Per Axle) 5 Standard Axle Item Description B104 S-Cam, left-hand (613 mm) B204 S-Cam, right-hand (613 mm) See page three for part number of base axle that needs custom cam length 1 165xxxx- Left-hand S-Cam - Contact Ridewell for cam length 1 165xxxx- Right-hand S-Cam - Contact Ridewell for cam length B054 Cam Service Kit B043 S-Cam thrust washer (Spider End) B03 S-Cam Lip Seal (Spider End) Included in Service Kit B03 S-Cam bearing (Spider End) B014 S-Cam washer (Spider End) B015 S-Cam snap ring (Spider End) B044 S-Cam spacer washer (Slack Adjuster End) B016 S-Cam washer (Slack Adjuster) B017 S-Cam snap ring (Slack Adjuster) B045 S-cam support bearing (Slack Adj. End)-Not in Service Kit 12 4 Lock Nut - M (Cam-Slack Adj. End) 4 Flat Washer (Cam-Slack Adj. End) 4 Bolt (HHCS) M x 30mm (Cam-Slack Adj. End) ENG Page Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page ENG

6 5-5 3/4 Axle w/ Cam Enclosure 16.5 x7.0 Brake Size 5-5 3/4 Axle w/ Cam Enclosure 16.5 x7.0 Brake - Service Parts 5 (Standard) and 5 3/4 (Large Diameter Axle) Tapered Spindle (N) Shown Cam Bearing Thrust Washer 2 5 Locknut/Flat Washer/Bolt (Slack Adj. End) Axle Wrap (LDA Only) 4 Brake Chamber Assembly (See 16.5 Brake Chamber Section) 13 Cam Seal 3 Cam Cover Service Kit 7 6 Cam Cover Slack Adjuster Assembly Push-Rod/Clevis Assembly (See 16.5 Brake Section) Flat Washer Cam Seal (O-Ring) Cam Cover Support Bracket Snap Ring (Slack Adj.) Flat Washer Snap Ring QT Y (Per Axle) 5 Standard Axle 5 3/4 LDA Item Description B106 S-Cam, left-hand (613 mm) B206 S-Cam, right-hand (613 mm) B043 S-Cam thrust washer (Spider End) Cam Cover Service Kit B03 S-Cam seal (Spider End) Included in Service Kit B03 S-Cam bearing (Spider End) B036 Cam cover assembly inc. bushings (536 mm) B037 Support bracket plate (2 Universal) - Slack Adjuster End B040 S-Cam O-Ring seal (slack adjuster) B044 S-Cam spacer washer (Slack Adj. End) B00 S-Cam snap ring B016 S-Cam spacer washer (slack adjuster) B017 S-Cam snap ring (slack adjuster) 13 4 Lock Nut - M (Cam Enclosure-Slack End) 4 Bolt (HHCS) M x 30mm (Cam Enclosure-Slack End) 4 Flat Washer (Cam Enclosure-Slack End) 1 Brake Cam (S-Cam) ENG Page 10 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 11 ENG

7 5 3/4 AX Short Cam Enclosure 16.5 x7.0 Brake Size 5 3/4 AX Short Cam Enclosure Service Parts-16.5 x7.0 Brake 5 3/4 Large Diameter Axle (LDA) Short Cam/Tapered Spindle (N) Shown Cam Bearing 5 Locknut/Flat Washer/Bolt (Slack Adj. End) Brake Chamber Assembly (See 16.5 Brake Chamber Section) Cam Cover Slack Adjuster Assembly Push-Rod/Clevis Assembly (See 16.5 Brake Section) 12 Cam Seal (O-Ring) Cam Cover Support Bracket Snap Ring (Slack Adj.) Flat Washer Flat Washer Snap Ring QT Y (Per Axle) 5 3/4 LDA Item Description B10 LDA-S-Cam, left hand (23 mm) B20 LDA-S-Cam, right hand (23 mm) B043 S-Cam thrust washer (Spider End) LDA - S-Cam Cover Service Kit (23 mm) B03 S-Cam Seal (Spider End) Included in Service Kit B03 S-Cam Bearing (Spider End) B04 LDA Cam Cover Assembly (16.5 mm)-includes Bushings B037 Support bracket plate (2 Universal)-Slack Adjuster End B040 S-Cam O-Ring seal (slack adjuster) B044 S-Cam spacer washer (Slack Adj. End) B00 S-Cam snap ring B016 S-Cam spacer washer (slack adjuster) B017 S-Cam snap ring (slack adjuster) 13 4 Lock Nut - M (Cam Enclosure-Slack End) 4 Bolt (HHCS) M x 30mm (Cam Enclosure-Slack End) 4 Flat Washer (Cam Enclosure-Slack End) Thrust Washer 2 4 Cam Seal 3 Cam Cover Service Kit 1 Brake Cam (S-Cam) ENG Page 12 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 13 ENG

8 Components x7.0 Brake Size Components x7.0 Brake Size Brake Chamber (16.5 x 7.0 Brake Size) Brake Chamber Type 5 Standard Axle (Straight) Stroke Length Push-Rod Length (in) Manufacturer Notes Type DiPro Type Haldex Type DiPro Type FUWA B303 30/ MGM / DiPro / FUWA / TSE OMNI / Wabco TRISTOP IBV / Haldex Gold Seal (GS) / TSE OMNI / TSE / MGM / MGM 5 3/4 Large Diameter Axle Overslung (RAR-266 Suspension) B047 30/ FUWA Type Haldex B053 30/ Haldex Gold Seal (GS) B055 30/ Haldex Life Seal (LS) / Wabco TRISTOP IBV / TSE OMNI 5 3/4 Large Diameter Axle Underslung (RAR-266 Suspension) B057 30/ FUWA Long Cam Long Push-Rod Cut push-rod to required length / DiPro Slack Adjuster (Brake Size x 7.0 ) Slack Size Spline Manufacturer Clevis/Anchor Pin Gunite Requires Clevis B Haldex Requires Clevis B001; Anchor Pin B Bendix Includes Clevis Bendix Includes Clevis Gunite Requires Clevis B Haldex Requires Clevis B001; Anchor Pin B B FUWA Includes Clevis ENG Page 14 Trailer Axle-Parts-Guide-RevC Hub and Drum (Hub-Pilot) - 10-Stud x Bolt Circle Spindle P N Hub Mtrl Cast Iron- Easy Roll Drum Mtrl Stud Length Tone Ring Side Fill Port Hub Drum Trailer Axle-Parts-Guide-RevC Page 15 ENG Hub MFG Hub & Drum Wheel Stud C'Fuz* Long Yes No B027 WEMC Cast Iron C'Fuz Long No Yes B027 Gunite W1402 Cast Iron C'Fuz Long Yes Yes B027 Gunite W1402 Cast Iron C'Fuz Long Yes Yes B027 KIC PRT-0011 Cast Iron Cast Iron Long No No KIC PRT-0011 Cast Iron Cast Iron Short Yes No KIC PRT Cast Iron Cast Iron Short No No KIC PRT Cast Iron Cast Iron Long Yes No KIC PRT-0011 ALUM C'Fuz Long Yes Yes B027 ConMet ALUM Cast Iron Long Yes Yes B031 ConMet ALUM Cast Iron Long Yes Yes B034 ConMet ALUM C'Fuz Long No Yes B027 ConMet ALUM C'Fuz Long Yes Yes B027 ConMet ALUM Cast Iron Long Yes Yes B031 ConMet ADI C'Fuz Short No No B027 WEMC ADI C'Fuz Long Yes Yes B027 WEMC ADI Cast Iron Long Yes Yes B031 WEMC ADI C'Fuz Long No Yes B027 WEMC ADI C'Fuz Short Yes No B027 WEMC Cast Iron- Fat Boy Long Yes No B034 WEMC Cast Iron C'Fuz Long Yes Yes B B027 KIC PRT-0011 Cast Iron Cast Iron Long No No KIC B000 PRT-0011 Cast Iron Cast Iron Short No No KIC B004 PRT Cast Iron Cast Iron Short Yes No KIC B015 PRT Cast Iron Cast Iron Long Yes No KIC B016 PRT-0011 ALUM C'Fuz Long Yes Yes B027 ConMet ALUM X30 Long Yes Yes B B013 ConMet 1021 ALUM C'Fuz Long Yes Yes B B027 ConMet 1021 ADI Cast Iron Long Yes Yes B026 WEMC ADI C'Fuz Long Yes Yes B B027 WEMC Flanged Wheel Nut-M22x1.5x33 (1.30 x 1.22 ) - See Drum Brake/Wheel End Parts *Centrifuse

9 5 Standard Axle x7.5 BrakeSize 5 Axle x7.5 Brake Size Service Parts x 7.5 Brake Size - 5 -Standard Axle Tapered Spindle (N) Shown Cam Bearing S-Cam Service Kit Brake Cam (S-Cam) Flat Washer/Locknut/Bolt (Slack Adj. End) S-Cam Bearing (Slack Adj. End) Cam Seal Washer Brake Chamber Assembly (See Brake Chamber Section) 13 7 Snap Ring (Spider End) Slack Adjuster Assembly Push-Rod/Clevis Assembly (See Brake Section) 10 Snap Ring 11 (Slack Adj.) Washer Slack Adjuster Mounting Bracket Bolt Washer Slack Adjuster Mounting Bracket QT Y (Per Axle) / MFG Item Description (5 Axle x7.5 Brake Size) 1 1 Meritor - R S-Cam, left-hand (55 mm) 1 Meritor - R S-Cam, right-hand (55 mm) 2 2 Meritor - R Cam service kit 3 2 Meritor - E-71 S-Cam washer (Spider End) 4 2 Meritor - R62701 S-Cam seal (Spider End) 5 1 Meritor - R S-Cam Bushing (Spider End) 6 1 Meritor Z-111 S-Cam snap ring (Spider End) B056 Slack Adjuster Mounting Bracket B016 S-Cam washer (Slack Adjuster End) B006 Slack Adjuster Mounting Bracket Bolt (Flat) B044 S-Cam spacer washer (Slack Adjuster End) B017 S-Cam snap ring (Slack Adjuster End) B045 S-Cam support bearing (Slack Adjuster End) 13 4 Lock Nut - M (Cam-Slack Adjuster End) 4 Flat Washer (Cam-Slack Adjuster End) 4 Bolt (HHCS) M x 30mm (Cam-Slack Adjuster End) Brake Chamber (Brake Size x 7.5 ) Part Number Brake Chamber Type Stroke Length Push-Rod Length Manufacturer Notes B004 Type DiPro B003 30/ DiPro Slack Adjuster (Brake Size x 7.5 ) Slack Size Spline Manufacturer Clevis Included/Added Kit B FUWA Requires Clevis B001 (Includes Anchor Pin) Hub and Drum (Hub-Pilot) Brake Size x 7.5 (10-Stud x.75 Bolt Circle) Spindle Hub Material Drum Mtrl Stud Length Tone Ring Side Fill Port Hub Drum Manuf. Hub & Drum Wheel Stud N Cast Iron Cast Iron Short Yes Yes Hub-0013FT KIC B001 PRT Cast Iron Cast Iron Short No Yes Hub-0013F KIC B002 PRT Cast Iron Cast Iron Long No Yes Hub-0013FL KIC B004 PRT-0011 Cast Iron Cast Iron Long Yes Yes B KIC B005 PRT Flanged Wheel Nut-M22x1.5x33 (1.30 x 1.22 ) - See Drum Brake/Wheel End Parts ENG Page 16 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 17 ENG

10 Common Service Parts Drum Brake/Wheel End Brake shoes/dust Shields Parts Brake Cam Rotation Info QT Y (Per Axle) Item Description Parallel Spindle (P) Spindle Nut Kit Washer Castle nut Cotter pin Tapered Spindle (N) Drum Brake/Wheel End Components Tapered Spindle (N) Shown 1 Gasket (Hub Cap) 2 Bearing Assembly (Outer) Spindle Nut Wheel Nut Bearing Cup (Outer) Bolt/Lockwasher (Hub Cap) Hub Assembly (Wheel Studs) Drum Assembly Hub Cap (with Gasket) B014 Spindle Nut Kit B035 Inner spindle nut B034 Lock washer B037 Tab lock washer B036 Outer nut Brake Shoe Assembly Spring/ Spring Kit Flanged Wheel Nut-M22x1.5x33 (1.30 x 1.22 ) ENG Page 1 Trailer Axle-Parts-Guide-RevC Bearing Assembly Wheel Seal Anchor Pin 5 Hub Seal Hub & Drum Component Anchor Pin Bushing Cam Roller 6 Drum Brake Assembly Service Parts QTY (Per Axle) Item Description 3 4 Brake shoe and lining assy - Q+ (includes cam roller and clip) 16.5 x K Brake Rating - PL B x K Brake Rating - PL B x K Brake Rating -PL244 Brake shoe and lining assy - Q (includes cam roller and clip) B B B Anchor pin B B B Anchor pin bushing 6 4 Retainer spring B B B012 Dust Shields 2 Return spring B B B011 Item Description Required Fasteners MFG Manufacturer B005 Dust Shield 16.5x7.0 (1.11 OD 2.3 DP) B005 (6) Fuwa H B00 Dust Shield 12.25x7.5 (13.7 OD 2.3 DP) B005 (4) Fuwa H Cam Rotation Wheel Rotation Push-Rod Above Axle- Cam in Front Front of Vehicle Wheel Rotation Cam Rotation Push-Rod Below Axle- Cam in Rear Brake Cam Rotation The axle assembly should be installed so that, when the brakes are activated, the camshaft rotates in the same direction as the wheels when the vehicle is moving forward. Opposite rotation of the camshafts can cause vibrations that can damage components such as the air chambers and chamber brackets attached to the axle. There are two recommended configurations for axle installations: Cams front and air chamber push-rod above the axle. Cams rear and air chamber push-rod below the axle. The decision on which configuration to use is based on obtaining adequate clearance between the axle and other vehicle components, maximizing ground clearance or locating components for maintenance access. Trailer Axle-Parts-Guide-RevC Page 1 ENG

11 Common Axle Components Wheel Bearing Adjustment Hub Cap Wheel Bearing Spindle Cup or Cone Location MFR Industry Number N B00 Cone Inner VNC HM2124 (3.543 ID) B00 Outer VNC HM21204 (2.625 ID) B041 Inner Hyatt HM B042 Outer Hyatt HM B02 Inner Stemco KHM2124 (3.543 ID) B027 Outer Stemco KHM21204 (2.625 ID) B032 Cup Inner VNC HM B033 Outer VNC HM P Cone Inner/Outer VNC HM Inner/Outer Stemco KHM Inner/Outer Hyatt HM Inner/Outer Timken HM Cup Inner/Outer VNC HM51410 Wheel Seal Spindle Side-Fill Port MFR Part MFR Lubrication Type Vent N No Stemco Hard/Semi-Fluid Grease Duckbill Yes Oil Sentinel B006 Yes Oil Standard B01 No Oil Standard B02 No Hard/Semi-Fluid Grease Sentinel B040 Yes Oil ESP Plug P Yes Stemco Oil Standard Anti-Lock Brake System (ABS) No Hard/Semi-Fluid Grease Sentinel Yes Oil Sentinel No Hard/Semi-Fluid Grease Duckbill Type MFR Part MFR Description B001 0-Degree Wabco ABS Sensor (Lead Length meter) B003 Straight ABS Sensor (Lead Length - 1 meter) B010 Straight Bendix ABS Sensor (Lead Length meter) B002 Bushing Retainer Wheel Bearing Adjustment Procedure Refer to TMC s Recommended Practice 61 - Wheel Bearing Adjustment Procedure. The procedures should obtain a verifiable wheel bearing end play of to (0.025 mm to 0.13 mm). The RP-61 procedures are for manually adjusted wheel ends and are not applicable to pre-set or unitized wheel ends. For wheel bearing adjustments on manually adjusted wheel ends, the optimum condition for measuring the end play is with the tires/wheels and brake drum removed from the hub. Always support the vehicle with stands; do not work under a unit supported by only a jack. Block the wheels and make sure vehicle cannot roll before releasing the brakes. NOTE: Do not use an impact wrench when tightening or loosening spindle nuts during the wheel bearing adjustment procedure. Double Adjusting Nut System (Figure 5) 1. Lubricate the bearing with the same type of lubricant used in the hub assembly. 2. While rotating the wheel, torque the adjusting nut (A) to 200 ft-lb (271 N m). 3. Back off the adjusting nut (A) one full turn from the bearing. 4. While rotating the wheel, tighten the adjusting nut to a final torque of 50 ft-lb (6 N m). 5. Back off the adjusting nut l/4-to-1/3 turn. Install lock washer (B) using nearest hole. 6. Install the outer jam nut (C). Torque to ft-lb ( N m). 7. Check end play (0.001 to [0.025 mm to 0.13 mm]). Verify that the wheel rotates freely when adjustment is completed. Single Adjusting Nut System (Figure 6) 1. Lubricate the bearing with the same type of lubricant used in the hub assembly. 2. Install lock washer (B). 3. While rotating the wheel, torque adjusting nut (A) to 200 ft-lb (271 N m). 4. Back off the adjusting nut (A) one full turn from the bearing. 5. While rotating the wheel, tighten the adjusting nut to a final torque of 50 ft-lb (6 N m). 6. Back off the adjusting nut l/6-to-1/4 turn to the nearest locking hole. 7. Install cotter pin.. Check end play (0.001 to [0.025 mm to 0.13 mm]). Verify that the wheel rotates freely when adjustment is completed. Spindle Manufacturer Type MFR Part N B004 Stemco Guardian HP National Gold PTFE M30025 P Stemco Guardian HP National Gold PTFE M3650T C B A Figure 5. Double Adjusting Nut System A B Figure 6. Single Adjusting Nut System ENG Page 20 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 21 ENG

12 (D) - ADB Pattern 1 Axle ADB Pattern 1 - Wabco PAN 22 1 Brake Chamber Assembly QT Y (Per Axle) Part Item Description 2 Caliper Assembly SPG BRK CHMBR ASY (20/24), 45 Deg. (20K brake rating) SPG BRK CHMBR ASY (20/24), 135 Deg. (20K brake rating) SPG BRK CHMBR ASY (24/24), 45 Deg. (23K brake rating) 3 Bolt (Caliper flange) SPG BRK CHMBR ASY (24/24), 135 Deg. (23K brake rating) Brake actuator, Service Only, Type 20, 45 Deg. (20K brake rating) 5 Axle or 5 3/4 Large Diameter Axle Parallel Spindle (P) Brake actuator, Service Only, Type 20, 135 Deg. (20K brake rating) Brake actuator, Service Only, Type 24, 45 Deg. (23K brake rating) Bearing Assembly Hub Seal 4 Dust Shield Brake actuator, Service Only, Type 24, 135 Deg. (23K brake rating) Caliper Assembly (Left-Hand) 5 ABS Sensor Caliper Assembly (Right-Hand) Hub And Rotor Component Cotter Pin (Spindle Nut) ABS Bushing Pad Kit, PAN 22 (Not Shown) Hex Head Cap Screw (HHCS) M x 55mm; GR 10. Bearing Assembly (Outer) Gasket (Hub Cap) Spindle Nut 17 Wheel Nut Bolt (Hub) Hub Assembly 11 Wheel Stud (Rotor) Rotor Assembly Hex Head Shoulder Cap Screw (HHSCS) M x 55mm; GR Dust Shield Pattern 1 - PAN B003 ABS - Sensor B002 ABS - Bushing Cotter Pin (Spindle Nut) Hub Seal Bearing Cone ID (Inner/Outer) 1 1 Hub Cap (with Gasket) Bolt/Lockwasher (Hub Cap) 164xxxDxxxx See 164- Descriptions on page 3 for axle identification Hub and Rotor Component (P) Spindle - PAN Rotor, PAN Wheel Stud - M22 x 1.5; 4.7 length Hub Assembly - (P); 10-Stud (with cups and wheel nuts) Rotor to Hub Fastener M16-2 x 35mm; GR Wheel Nut Spindle Nut (Castle Nut) - Requires Cotter Pin Gasket (All Hub Caps) Hub Cap with Gasket (Oil Lubrication) Sentinel Vent Hub Cap with Gasket (Oil Lubrication) Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) Sentinel Vent Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) Duckbill Vent B105 HHCS 5/16-1NC 3/4 length B100 Lock Washer 5/16 ENG Page 22 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 23 ENG

13 (W, B, L) - ADB Pattern 2 Axles ADB Pattern 2 - Wabco PAN 22; Bendix ADB22X ; 22X-LT Brake Chamber Assembly Caliper Assembly Bolt (Caliper flange) QT Y (Per Axle) Part Item Description SPG BRK CHMBR ASY - Bendix (1/24) 45 Deg. (20K/23K brake rating) SPG BRK CHMBR ASY - Bendix (1/24) 135 Deg. (20K/23K brake rating) SPG BRK CHMBR ASY - Wabco (20/24) 45 Deg. (20K brake rating) 5 Axle 5 3/4 Large Diameter Axle (LDA) Parallel Spindle (P) 4 Pad Shield Dust Shield SPG BRK CHMBR ASY - Wabco (20/24) 135 Deg. (20K brake rating) SPG BRK CHMBR ASY - Wabco (24/24) 45 Deg. (23K brake rating) SPG BRK CHMBR ASY - Wabco (24/24) 135 Deg. (23K brake rating) Hub And Rotor Component Toner Ring 10 Bearing Assembly 7 Hub Seal 6 5 ABS Sensor ABS Bushing Brake actuator, Service Only, Bendix (Type 1) 40 Deg. (20K/23K brake rating) Brake actuator, Service Only, Bendix (Type 1) 140 Deg. (20K/23K brake rating) Brake actuator, Service Only, Wabco (Type 20) 45 Deg. (20K brake rating) Brake actuator, Service Only, Wabco (Type 20) 135 Deg. (20K brake rating) Brake actuator, Service Only, Wabco (Type 24) 45 Deg. (20K brake rating) Brake actuator, Service Only, Wabco (Type 24) 135 Deg. (20K brake rating) Bendix, Caliper Assembly (Left-Hand) Bearing Assembly (Outer) Gasket (Hub Cap) Spindle Nut 17 Wheel Nut Bolt (Hub) Hub Assembly 11 Wheel Stud (Rotor) Rotor Assembly Bendix, Caliper Assembly (Right-Hand) Bendix LT, Caliper Assembly (Left-Hand) Bendix LT, Caliper Assembly (Right-Hand) Wabco, Caliper Assembly (Left-Hand) Wabco, Caliper Assembly (Right-Hand) Pad Kit, Bendix ADB22X (Not Shown) 1 1 Hub Cap (with Gasket) Bolt/Lockwasher (Hub Cap) 164xxxWxxxx See 164- Descriptions on page 3 for axle identification 164xxxBxxxx 164xxxLxxxx Pad Kit, Bendix ADB22X-LT (Not Shown) Pad Kit, Wabco PAN 22 (Not Shown) Hex Head Cap Screw (HHCS) M20-2.5x60mm; GR Flat Washer (M20) Dust Shield Pattern 2 - PAN Pad Shield Pattern 2 - Bendix (Caliper Only) B003 ABS-Sensor (Wabco) B010 ABS-Sensor (Bendix) B002 ABS-Bushing (Wabco or Bendix) Pattern 2 Axle components continued on next page ENG Page 24 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 25 ENG

14 (W, B, L) - ADB Pattern 2 Axles Pattern 2 Axle components - continued ADB Pattern 2 - Wabco PAN 22; Bendix ADB22X ; 22X-LT Brake Chamber Assembly 1 QT Y (Per Axle) Part Item Description Bearing Assembly (Outer) Gasket (Hub Cap) Spindle Nut 17 Wheel Nut Hub And Rotor Component 15 Hub Cap (with Gasket) Bolt/Lockwasher (Hub Cap) 5 Axle 5 3/4 Large Diameter Axle (LDA) Parallel Spindle (P) Toner Ring Bolt (Hub) Bearing Assembly Hub Assembly Caliper Assembly 11 7 Wheel Stud (Rotor) 4 2 Hub Seal Rotor Assembly Pad Shield Dust Shield 164xxxWxxxx See 164- Descriptions on page 3 for axle identification 164xxxBxxxx 164xxxLxxxx 6 3 Bolt (Caliper flange) 5 ABS Sensor ABS Bushing Hub Seal -National Gold PTFE Hub Seal )-STEMCO Guardian HP Bearing Cone ID (Inner/Outer) Tone Ring - ABS ring kit (ConMet Hub / before April 1, 201) Tone Ring - ABS ring kit (ConMet Hub / after April 1, 201) Gunite Hub, Rotor, and Tone Ring Assembly, Cast/Cast KIC - Hub and Rotor FP (Integral Tone Ring) ConMet Hub, Rotor, and Tone Ring Assembly, AL/Cast ConMet PreSet Hub, Rotor, and Tone Ring Assembly, AL/Cast Walther EMC-Hub, Rotor, and Tone Ring Assembly, ADI/Cast Gunite-Rotor Only (Integral Tone Ring) ConMet (Standard/PreSet) Rotor Assembly (Integral Tone Ring) KIC-Rotor Only (Integral Tone Ring) Walther EMC-Rotor Kit (Integral Tone Ring) Wheel studs - Gunite 20 Wheel studs - ConMet (Standard and PreSet) Wheel studs - KIC Wheel studs - Walther EMC 13 Not Available Conmet; Gunite; KIC - Hub Only Walther EMC - Hub only Flanged Nut (5/ - 1) - Rotor to Hub; Conmet (Standard and PreSet) Bolts - Rotor to Hub; Gunite (5/ - 11) Washers - Rotor to Hub; Gunite (5/ ) 20 Bolt - Rotor to Hub; KIC (M16 x 2 x 45 HHCS) 20 Washer - Rotor to Hub; KIC (M16; Hardened) 20 Bolts/Washers - Rotor to Hub; Walther EMC Wheel Nut Spindle Nut (Castle Nut) - Requires Cotter Pin Spindle Nut - Stemco Pro-Torq Spindle Nut - Meritor (4 pcs) Spindle Nut - ConMet PreSet Gasket (Hub Cap) Hub Cap with Gasket (Oil Lubrication) - Sentinel Vent Hub Cap with Gasket (Oil Lubrication) Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) - Sentinel Vent Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication)- Duckbill Vent B105 HHCS 5/16-1NC 3/4 length B100 Lock Washer 5/16 ENG Page 26 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 27 ENG

15 (P) - ADB Pattern 3 & 4 Axle 5 Axle and 5 3/4 LDA (P) - ADB Pattern 3 & 4 Axle Wabco PAN 1 Bearing Assembly (Outer) Gasket (Hub Cap) Spindle Nut 17 1 Wheel Nut Hub And Rotor Component Hub Cap (with Gasket) Bolt/Lockwasher (Hub Cap) Bearing Assembly 10 Hub Assembly Caliper Assembly 5 Axle or 5 3/4 Large Diameter Axle Parallel Spindle (P) Bolt (Hub) 2 1 Hub Seal Wheel Stud (Rotor) Brake Chamber Assembly 3 Rotor Assembly Bolt (Caliper flange) 164xxxPxxxx See 164- Descriptions on page 3 for axle identification Cotter Pin (Spindle Nut) 5 4 Dust Shield ABS Sensor ABS Bushing QT Y (Per Axle) Part Item Description SPG BRK CHMBR ASY (1/24), 45 Deg. (20K/23K brake rating) SPG BRK CHMBR ASY (1/24), 135 Deg. (20K/23K brake rating) SPG BRK CHMBR ASY, (20/24), 45 Deg. (20K brake rating) SPG BRK CHMBR ASY, (20/24), 135 Deg. (20K brake rating) SPG BRK CHMBR ASY, (24/24), 45 Deg. (23K brake rating) SPG BRK CHMBR ASY, (24/24), 135 Deg. (23K brake rating) Brake actuator, Service Only, Type 1, 40 Deg Brake actuator, Service Only, Type 1, 140 Deg Brake Actuator, Service Only, Type 20, 45 Deg Brake Actuator, Service Only, Type 20, 135 Deg Brake Actuator, Service Only, Type 24, 45 Deg Brake Actuator, Service Only, Type 24, 135 Deg Caliper Assembly (Left-Hand) Caliper Assembly (Right-Hand) Pad Kit, PAN 1 (Not Shown) (5 Axle) Hex Head Cap Screw (HHCS) M16x1.5 x 50mm; GR (LDA) Hex Head Cap Screw (HHCS) M x 5mm; GR (LDA) Hex Head Shoulder Cap Screw (HHSCS) M x 5mm; GR Dust Shield - PAN B003 ABS - Sensor B002 ABS - Bushing Cotter Pin (Spindle Nut) Hub Seal - National Gold PTFE Hub Seal - STEMCO Guardian HP Bearing Cone-3.5 ID (Inner/Outer) Hub and Rotor Component (FP) - PAN Rotor Assembly, PAN Wheel Stud - M22 x 1.5; 4.7 length 13 Not Avail. PAN 1 Hub Only, Cast Socket Head Cap Screw (SHCS) M12 x mm; GR Wheel Nut Spindle Nut (Castle Nut) - Requires Cotter Pin Gasket (Hub Cap) Hub Cap with Gasket (Oil Lubrication) - Sentinel Vent Hub Cap with Gasket (Oil Lubrication) Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) - Sentinel Vent Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) - Duckbill Vent B105 HHCS 5/16-1NC 3/4 length B100 Lock Washer 5/16 ENG Page 2 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 2 ENG

16 (S) - ADB Pattern 5 Axle Wabco PAN 17 ADB Pattern 5 - Wabco PAN 17 Gasket (Hub Cap) Wheel Bearing (Outer) Spindle Nut Wheel Nut (Flanged) 13 Hub Cap (with Gasket) Bolt/Lockwasher (Hub Cap) 12 Bolt (Hub) Wheel Bearing Hub Assembly 5 Axle Tapered Spindle (N) 7 10 Hub Seal Wheel Stud (Rotor) Rotor Assembly 164xxxSxxxx See 164- Descriptions on page 3 for axle identification Brake Chamber Assembly ABS Bushing Caliper Assembly 4 Bolt/Washer (Caliper flange) ABS Sensor Dust Shield Q ty (Per Axle) Part Item Description SPG BRK CHMBR ASY, (20/24), 45 Deg. (20K brake rating) SPG BRK CHMBR ASY, (20/24), 135 Deg. (20K brake rating) Brake actuator, Service Only, Type 20, 45 Deg Brake actuator, Service Only, Type 20, 135 Deg Caliper Assembly (Left-Hand) Caliper Assembly (Right-Hand) Pad Kit, PAN 17 (Not Shown) Hex Head Cap Screw (HHCS) M X 45mm; GR Flat Washer, M Dust Shield B010 ABS-Sensor B002 ABS-Bushing Hub Seal - National Gold PTFE B00 Wheel Bearing Cone (3.543 ID) Rotor 325mm X 34mm, PAN Wheel Stud M22x1.5; 4.7 length Hub Assembly - FN, PAN Socket Head Cap Screw (SHCS) M X 40mm Flanged Wheel Nut M22 x 1.5 (Torque to ft-lb) B00 (Outer) Wheel Bearing (2.625 ID) 15 2 (Spindle) Nut Assembly (Pre-assembled B014) B035 Inner Nut B034 Lock washer B037 Tab Lock washer B036 Outer Nut Spindle Nut (N) - Stemco Pro-Torq B007 Gasket (Hub Cap) B006 Hub Cap with Gasket (Oil Lubrication) - Sentinel Vent Hub Cap with Gasket (Hard/Semi-Fluid Grease Lubrication) - Duckbill Vent B105 HHCS 5/16-1NC 3/4 length B100 Lock Washer 5/16 ENG Page 30 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 31 ENG

17 Bendix Caliper - Service Parts Wabco Caliper - Service Parts Components fit both right- and left-hand caliper assemblies Actuator Nut Components fit both right- and left-hand caliper assemblies (A) Pressure Plate (A) Guide Pin Boot Kit (E) Tappets Kit (B) Seal and Guide Bolt Kit (D) Seal & Guide Bolt Kit (C) Clamping Unit Seal (B) Shear Adapter (D) Rubber Plug (C) Rubber Plug/Cap Dwg Qty per Axle Description A Guide Pin Boot Kit B Shear Adapter C Rubber plug D Seal & Guide Bolt Kit E Tappets Kit (includes tappet and boot) ENG Page 32 Trailer Axle-Parts-Guide-RevC Dwg Qty per Axle Description A Pressure Plate PAN Pressure Plate PAN Pressure Plate PAN 22 B Seal and Guide Bolt Kit PAN Seal and Guide Bolt Kit PAN 22 C Seals for Clamping Unit PAN 17; PAN 1; PAN 22 D Rubber (Gaiter) Plug PAN 17; PAN 1; PAN 22 E Caliper Bushing Bore Cap Kit PAN 1; PAN 22 1 Not Avail. PAN 17 Tool kit (Wabco ) PAN 1; PAN 22 Tool kit (Basic) PAN 1; PAN 22 Tool kit (E) Caliper Bushing Bore Cap Kit Trailer Axle-Parts-Guide-RevC Page 33 ENG

18 Air Disc Brakes (ADB) Brake Chamber Port Location Preventive Maintenance Brake Chamber for Ridewell Suspensions Listed by Ports Location After Standard Installation* (RAR-251 and RT-201 Suspensions not included. Not all chamber combinations are available for each suspension type ) Chamber Port Away from Axle - Long Pin Side RCA-215/215T Truck and Trailer ADB Chamber Size Chmbr Part #- Driver s Side Chmbr Part #- Curb Side **T T T T / / / / / Chamber Port Towards Axle - Long Pin Side RAR-240 Overslung, Underslung, Yoke RAR-260/200 Overslung RAR-266 Overslung RSS-233/233T Truck and Trailer Chamber Size Chmbr Part #- Driver s Side Chmbr Part #- Curb Side **T T T T / / / / / Long Pin Wheel Rotation Driver s Side Chamber - Viewed from Inside Port Away From Axle - Short Pin Side Yoke RUL T Truck and Trailer ADB Chamber Size Chmbr Part #- Driver s Side Chmbr Part #- Curb Side **T T T T / / / / / Short Pin RAR-266 Low Mount (Underslung) Refer to Engineering Drawing for brake chamber port orientation *Orientation of brake chamber on top of axle is shown for illustration purposes only. **T-16 Brake chambers have a zero-degree port towards and away from axle locations do not apply. Replacement of a disc brake chamber and its integration into the vehicle s air system depends upon which side of the axle that the brake assembly is to be installed, and the location of the brake chamber ports either towards or away from the axle. In some cases, the correct brake assembly for the left-hand (driver s side) or the right-hand (curb side) side of the axle will be indicated by an arrow on the caliper. The brake disc s direction of rotation during forward driving can be found by looking for the Long ( Fixed Position ) Pin on the caliper. The wheel rotates forward (towards) past the long pin to the Short ( Floating Position ) Pin. In addition to showing wheel rotation, the location of the ADB chamber ports in relation to the axle (towards or away) will be indicated by the short or long pin (side) of the brake caliper. Refer to the Technology & Maintenance Council (TMC) Recommended Practices RP-604 Brake Chambers for Air-Braked Vehicles and RP-652 Service and Inspection of Air Disc Brakes for maintenance/replacement information. ENG Page 34 Trailer Axle-Parts-Guide-RevC Ridewell suggests the following Technology & Maintenance Council (TMC) publications for additional maintenance information. TMC RP 222 TMC RP 604 TMC RP 607 TMC RP 60 TMC RP 60 TMC RP 61 TMC RP 61 TMC RP 622 TMC RP 631 TMC RP 651 TMC RP 652 TMC RP 656 TMC RP 70 TMC RP 72 TMC RP 1503 TMC RP 1506 TMC RP 150 Ridewell Suspensions recommends the following minimum service intervals for standard duty, on-highway usage suspension applications. More frequent intervals are recommended for heavier duty applications. Daily/Pre-Trip Inspections User s Guide to Wheels and Rims Brake Chambers for Air-Braked Vehicles Preventive Maintenance and Inspection of S-Cam Foundation Brakes Brake Drums and Rotors Self-Adjusting and Manual Brake Adjuster Removal, Installation and Maintenance Wheel Bearing Adjustment Procedure Air System Inspection Procedure Wheel Seal and Bearing Removal, Installation and Maintenance Recommendations for Wheel End Lubrication Steer Axle Maintenance Guidelines Service and Inspection of Air Disc Brakes Hub and Spoke Wheel Fastener Maintenance Trailer Axle Alignment Trailer Axle Maintenance Brake Maintenance Guidelines for Severe Vocational Applications Torque Rod Maintenance Guidelines for Vocational Vehicles Drive Axle Suspension Maintenance and Inspection Guidelines for Vocational Vehicles Check tires for proper inflation, damage or excessive wear. Check oil-level in wheel hub and inspect wheel-ends for obvious signs of lubricant leakage. Check for missing components. Visually inspect suspension structure for signs of damage or excessive wear. Check for loose/missing bolts/nuts. Check suspension components for irregular movement. Make sure air controls are operating properly. Drain all moisture from air reservoirs. First 6,000 miles of use Torque all component bolts/nuts to specifications (Refer to Manufacturer s Spec.). Every 12,000 miles of use Inspect air springs for any damage or excessive wear. Torque air spring bolts/nuts to specifications (Refer to Manufacturer s Spec.). Check air lines and connections for leaks. Every 50,000 miles of use Torque all component bolts/nuts to specifications (Refer to Manufacturer s Spec.). Lube camshaft bushings and brake adjusters. Annually/100,000 miles of use Inspect pivot connection for worn pivot bushing and wear washers. Replace as necessary. Torque suspension component bolts/nuts to specifications (Refer to Manufacturer s Spec.). Check arm beam-to-axle connection welds. Check lubrication level in wheel ends: 1) Oil-Filled Wheel Ends: Refill/Replace lubricant as needed (Refer to TMC RP K/Annual Inspection ). 2) Semi-Fluid Grease: Pull outer bearing and visually inspect lubrication level. Refill/Replace as needed (TMC RP 631 Level 3 Lubrication Level Inspection and TMC RP 61 Wheel Bearing Adjustment Procedure ). Check air lines and connections for leaks. Check brake air chambers and slack adjusters. Inspect brake rollers, roller shafts, anchor pins and bushings. Replace, if necessary. Check shoes for bent shoe ribs, cracks in shoe table welds or ribs, and elongated rivet holes. Replace shoes, if necessary. Failure to torque the bolts/nuts of suspension components to specifications can result in failure of the suspension and voiding of the warranty. Trailer Axle-Parts-Guide-RevC Page 35 ENG

19 Axle/Wheel End Components- Torque Specifications Axle/Wheel End Components Torque Specifications* Component Type Spindle Nut Brake Chamber Mounting Fastener ADB Hub-to-Rotor Fastener (Locknut required) ADB Caliper Mounting Fasteners Automatic Slack Adjuster -to-push Rod Wheel Nut Hub-Piloted - Flanged Stud-Piloted-Ball-Seat Component Description See Wheel Bearing Adjustment Procedure foot-pound Torque Values Newton-meter 5/ Mounting Hardware ft-lb N-m Ridewell Pattern One Cast Iron Hub Gunite Pattern Two Cast Iron Hub ConMet Pattern Two Aluminum Hub Wabco PAN 1 Pattern Three/Four Wabco PAN 17 Pattern Five Wabco PAN 22 Pattern One Wabco PAN 22 Pattern Two Wabco PAN 1 Pattern Three/Four Wabco PAN 17 Pattern Five Bendix ADB22X /22X-LT Pattern Two ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m 1-22 ft-lb N-m ft-lb N-m 1-22 ft-lb N-m ft-lb N-m Step 1 Pre-Torque: ft-lb Step 2 Final: ft-lb 27-1 N-m N-m Jam nut pushrod-to-clevis (5/-1) 400 in-lb 45.1 N-m M22 x 1.5 x 33 (1.30 x 1.22 ) 3/4 x 16 Do not use motor-driven screw or torque tools on hub cap fasteners ft-lb N-m ft-lb N-m Hub Cap Bolt HHCS 5/16 1NC 3/4 long / Lock Washer ft-lb ( in-lb) N-m *Refer to original equipment manufacturer for complete torque specifications. Failure to install and maintain fasteners at torque specifications could result in suspension failure and void the warranty. ATIS Installations offered by Ridewell Pressure Systems International (P.S.I. ) Sales Literature MTIS by P.S.I. Brochure Service Literature Maintenance and Install Manual Parts Book How to maintain MTIS by P.S.I. How to adjust the Control Box Driver s Literature Driver s Checklist ( Aeris Tire Inflation System STEMCO Sales Literature Aeris Tire Inflation System (Brochure ) Aeris with SmartSense (Brochure ) ThermAlert Standard or SmartSense Service Literature Installation/Service Guide Aeris Replacement Parts Guide ( Automatic Tire Inflation System (ATIS) An automatic tire inflation system (ATIS) is designed to monitor and maintain the correct air pressure inside the tires on a vehicle. Advantages of an ATIS Extended Tire Life: Under-inflated tires are the main cause of tire failure and contribute to tire disintegration, heat buildup, ply separation and sidewall/casing breakdowns. In addition, tires that are properly inflated improve fuel economy while adding greater stability, handling and braking efficiencies for increased vehicle safety on the road. ATIS Operation The automatic tire inflation system redirects air from the vehicle s air system to maintain the proper air pressure in the tires. A monitor system reports real-time tire-pressure information to the driver with a low-pressure warning light. Axle and Wheel End Preparation Tire inflation systems require a certain amount of preparation to the axle and wheel end components before installation. Contact Ridewell Customer Service for the preparation needed for a single/dual wheel system. ENG Page 36 Trailer Axle-Parts-Guide-RevC Trailer Axle-Parts-Guide-RevC Page 37 ENG

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