NHTSA ID Number: 10162712
Manufacturer Communication Number: 17730-312 Rev A
TSB/Document Date: 2019-07-15
Summary
Operation Name: Hendrickson Truck Commercial Vehicle Systems Document Name: Technical Procedure - SOFTEK Front Suspension System for Lion Bus Summary: This document provides preventive maintenance, service, repair and rebuild instructions for Hendrickson SOFTEK front axle and suspension systems equipped on Lion Bus vehicles.
SOFTEK® Front Suspension
System for Lion Bus
SUBJECT: Service Instructions
LIT NO: 17730-312
DATE: March 2019
REVISION: A
TABLE OF CONTENTS
Section 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
Section 2
Product Description . . . . . . . . . . . . . . . . . 2
Section 3
Important Safety Notice. . . . . . . . . . . . . . 4
Section 4
Parts Lists. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Section 5
Special Tools . . . . . . . . . . . . . . . . . . . . . . 12
Rubber Axle Stop . . . . . . . . . . . . . . . . . . . . 37
Section 6
Towing Procedure
Leaf Spring Assembly . . . . . . . . . . . . . . . . . 38
On-Highway and On-Roadway. . . . . . . . . . . 13
Front Leaf Spring Eye Bushing. . . . . . . . . . . 39
Off Roadway Towing . . . . . . . . . . . . . . . . . . 14
Bottom Axle Wrap . . . . . . . . . . . . . . . . . . . . 40
Preventive Maintenance
Top Axle Wrap (In Chassis) . . . . . . . . . . . . . 40
Section 7
Component Inspection . . . . . . . . . . . . . . . . 15
Lubrication Intervals . . . . . . . . . . . . . . . . . . 16
Steering Knuckle. . . . . . . . . . . . . . . . . . . . . 16
Kingpin Bushing Wear. . . . . . . . . . . . . . . . . 17
Kingpin Lubrication. . . . . . . . . . . . . . . . . . . 18
Tie Rod Ends. . . . . . . . . . . . . . . . . . . . . . . . 18
Tie Rod End Lubrication . . . . . . . . . . . . . . . 21
Component Replacement
Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Shock Absorber. . . . . . . . . . . . . . . . . . . . . . 35
Front Leaf Spring Frame Hanger . . . . . . . . . 36
Rear Shackle Bracket . . . . . . . . . . . . . . . . . 36
Front Axle Assembly. . . . . . . . . . . . . . . . . . . 42
STEERTEK Axle Removal. . . . . . . . . . . . . . . . 42
STEERTEK Axle (Removed From Chassis). . . 44
Steering Knuckle. . . . . . . . . . . . . . . . . . . . . 46
Kingpin Bushing . . . . . . . . . . . . . . . . . . . . . 48
Tie Rod End And Cross Tube. . . . . . . . . . . . . 53
Air Disc Brake • Drum Brake Assembly. . . . . 55
Clamp Group Re-Torque Interval . . . . . . . . . 21
Section 10 Torque Specifications. . . . . . . . . . . . . . . 56
Tire Inspection. . . . . . . . . . . . . . . . . . . . . . . 22
Section 11 Troubleshooting Guide. . . . . . . . . . . . . . 60
Wheel Bearing End Play . . . . . . . . . . . . . . . 24
Section 12 Front Alignment Specifications. . . . . . . 62
Shock Absorbers. . . . . . . . . . . . . . . . . . . . . 24
Axle Wrap Liner. . . . . . . . . . . . . . . . . . . . . . 26
Section 8
Section 9
Alignment & Adjustments
Alignment Definitions . . . . . . . . . . . . . . . . . 27
Inspection Prior to Alignment. . . . . . . . . . . . 29
Front Wheel Alignment . . . . . . . . . . . . . . . . 30
Steering Stop . . . . . . . . . . . . . . . . . . . . . . . 32
Toe Setting. . . . . . . . . . . . . . . . . . . . . . . . . 32
Spring Eye Re-Torque . . . . . . . . . . . . . . . . . 34
Section 13 Reference Material. . . . . . . . . . . . . . . . . 63
SOFTEK® for Lion Bus
SECTION 1
Introduction
This technical publication is intended to acquaint and assist maintenance personnel in the
preventive maintenance, service, repair and rebuild of the following Hendrickson equipment as
installed on applicable Lion Bus:
■■
SOFTEK® — An integrated steel spring mechanical suspension with the STEERTEK axle
■■
STEERTEK — A durable, lightweight, fabricated steer axle assembly
See Parts List Section of this publication to determine the components that are manufactured by
Hendrickson. For components not manufactured or supplied by Hendrickson contact the vehicle
manufacturer for proper preventive maintenance and rebuild instructions.
NOTE
Use only Hendrickson
Genuine parts for servicing this suspension system.
It is important to read and understand the entire Technical Procedure publication prior to performing any maintenance, service, repair, or rebuild of the product. The information in this publication
contains parts lists, safety information, product specifications, features, proper maintenance, service,
repair and rebuild instructions for the SOFTEK Suspensions and the STEERTEK axle.
Hendrickson reserves the right to make changes and improvements to its products and
publications at any time. Contact Hendrickson Tech Services for information on the latest version
of this manual at 1-866-755-5968 (toll-free U.S. and Canada), 630-910-2800 (outside U.S. and
Canada) or e-mail: [email protected].
The latest revision of this publication is also available online at
www.hendrickson-intl.com.
SECTION 2
Product Description
Introduction
2
17730-312
SOFTEK® for Lion Bus
SOFTEK — is an integrated front mechanical suspension and robotically welded steer axle that
work together to form an integrated torsion system. Utilizing a system approach, Hendrickson has
engineered and optimized components to form a system delivering ride, stability and handling
characteristics with reduced weight and maintenance.
■■
Front and Rear Frame Brackets — SOFTEK brackets with optimized designs deliver weight
reduction and proven durability.
■■
Leaf spring assembly — SOFTEK leaf spring, with its innovative design, provides superior
stability, performance and a soft ride. Durable rubber front and patented rear bushings are
greaseless and only require periodic inspections.
■■
Shock absorbers — SOFTEK utilizes premium shock absorbers that have been tested and
tuned specifically for the suspension system.
STEERTEK — Integrated into the SOFTEK system, the box-shaped design provides a stiffer axle
and resists torsional, longitudinal and vertical loads more effectively than traditional I-Beam axles.
Together with the front limbs of the leaf springs, the fabricated axle beam forms a torsion system,
enhancing roll stability characteristics and improving handling.
■■
Axle Clamp Group — The axle-friendly clamp group provides four-sided clamping pressure.
The Clamp Group consists of the following:
■■
Top Axle Wrap
■
Bottom Axle Wrap
■■
Top Axle Wrap Liner
■
■■
Top pad
■
¾" U-bolts / Hex Bolts, Washers and Nylon Locknuts
■■
Adjustable Tie Rod — To help maximize tire life, the tie rod easily adjusts toe-in / out.
■■
Steering Knuckles — The steering and tie rod arms are integrated for increased strength and
reduced weight. The unique steering knuckle packaging delivers a maximum of 50° wheel cut.
The two piece knuckle design makes replacing the kingpin bushings easier by eliminating the
need to remove the kingpins.
TECHNICAL NOTES
1. SOFTEK is approved for 100% on-highway use with up to 10% off-highway uses; other applications
that exceed 10% off-highway use must be pre-approved by Hendrickson and the vehicle manufacturer.
The SOFTEK systems for Lion bus is 10,500 pound capacity.
2. The STEERTEK axle is available with 70.87" Kingpin Intersections (KPI).
3. The STEERTEK axle offers 4.25" axle beam drop height. Axle beam drop is measured from the kingpin
intersection to the top of the axle.
4. SOFTEK is integral to and available exclusively with the STEERTEK axle. This system is anti-lock braking
system (ABS) ready. STEERTEK is compatible with industry standard wheel ends and brakes.
5. The STEERTEK axle Product Identification is etched on the center front of the axle beam providing the
following information:
■■
Axle part number: Identifies the features of the axle beam
■■
Axle assembly number: Identifies the complete assembly. The steering knuckles and clamp group
are part of the axle assembly
FIGURE 2-3 Front view of STEERTEK axle showing approximate location of product identification.
17730-312
3
Product Description
SOFTEK® for Lion Bus
SECTION 3
Important Safety Notice
Proper maintenance, service and repair is important to the reliable operation of the suspension.
The procedures recommended by Hendrickson and described in this technical publication are
methods of performing such maintenance, service and repair.
This technical publication should be read carefully to help prevent personal injury and to assure that
proper methods are used. Improper maintenance, service or repair may damage the vehicle, cause
personal injury, render the vehicle unsafe in operation, or void the manufacturer’s warranty.
Failure to follow the safety precautions in this manual can result in personal injury and / or property damage. Carefully read and understand all safety related information within this publication,
on all decals and in all such materials provided by the vehicle manufacturer before conducting
any maintenance, service or repair.
■■ EXPLANATION OF SIGNAL WORDS
Hazard “Signal Words” (Danger-Warning-Caution) appear in various locations throughout this
publication. Information accented by one of these signal words must be observed to help minimize the risk of personal injury to service personnel, or possibility of improper service methods
which may damage the vehicle or render it unsafe.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
Additional ‘Notes’ or ‘Service Hints’ are utilized to emphasize areas of procedural
importance and provide suggestions for ease of repair. The following definitions indicate the use
of these signal words as they appear throughout the publication.
INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN SERIOUS
INJURY OR DEATH.
INDICATES A POTENTIAL HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, CAN RESULT IN SERIOUS
INJURY OR DEATH.
INDICATES A POTENTIAL HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR
MODERATE INJURY, OR PROPERTY DAMAGE.
NOTE
An operating procedure, practice condition, etc. which is essential to emphasize.
SERVICE HINT
A helpful suggestion, which will make the servicing being performed a little easier and / or faster.
Also note that particular service operations may require the use of special tools designed for
specific purposes. These special tools can be found in the Special Tools Section of this publication.
The torque symbol alerts you to tighten fasteners to a specified torque value. Refer to Torque
Specifications Section of this publication.
Important Safety Notice
4
17730-312
SOFTEK® for Lion Bus
■■ SAFETY PRECAUTIONS
FASTENERS
DISCARD USED FASTENERS. ALWAYS USE NEW FASTENERS TO COMPLETE A REPAIR. FAILURE TO DO
SO COULD RESULT IN FAILURE OF THE PART, OR MATING COMPONENTS, LOSS OF VEHICLE CONTROL,
PERSONAL INJURY, OR PROPERTY DAMAGE.
LOOSE OR OVER TORQUED FASTENERS CAN CAUSE COMPONENT DAMAGE, LOSS OF VEHICLE
CONTROL, PROPERTY DAMAGE, OR SEVERE PERSONAL INJURY. MAINTAIN CORRECT TORQUE VALUE
AT ALL TIMES. CHECK TORQUE VALUES ON A REGULAR BASIS AS SPECIFIED, USING A REGULARLY
CALIBRATED TORQUE WRENCH. TORQUE VALUES SPECIFIED IN THIS TECHNICAL PUBLICATION ARE FOR
HENDRICKSON SUPPLIED FASTENERS ONLY. IF NON HENDRICKSON FASTENERS ARE USED, FOLLOW
TORQUE SPECIFICATION LISTED IN THE VEHICLE MANUFACTURER’S SERVICE MANUAL.
LOAD CAPACITY
ADHERE TO THE PUBLISHED CAPACITY RATINGS FOR THE SUSPENSIONS. ADD-ON AXLE ATTACHMENTS
AND OTHER LOAD TRANSFERRING DEVICES CAN INCREASE THE SUSPENSION LOAD ABOVE THE RATED
AND APPROVED CAPACITIES WHICH COULD RESULT IN FAILURE AND LOSS OF VEHICLE CONTROL,
POSSIBLY CAUSING PERSONAL INJURY OR PROPERTY DAMAGE.
PERSONNEL PROTECTIVE EQUIPMENT
ALWAYS WEAR PROPER EYE PROTECTION AND OTHER REQUIRED PERSONAL PROTECTIVE
EQUIPMENT TO HELP PREVENT PERSONAL INJURY WHEN YOU PERFORM VEHICLE MAINTENANCE,
REPAIR OR SERVICE.
PROCEDURES AND TOOLS
A MECHANIC USING A SERVICE PROCEDURE OR TOOL WHICH HAS NOT BEEN RECOMMENDED BY
HENDRICKSON MUST FIRST SATISFY HIMSELF THAT NEITHER HIS SAFETY NOR THE VEHICLE’S SAFETY
WILL BE JEOPARDIZED BY THE METHOD OR TOOL SELECTED. INDIVIDUALS DEVIATING IN ANY MANNER
FROM THE INSTRUCTIONS PROVIDED ASSUME ALL RISKS OF CONSEQUENTIAL PERSONAL INJURY OR
DAMAGE TO EQUIPMENT INVOLVED.
SUPPORT THE VEHICLE PRIOR TO SERVICING
PLACE THE VEHICLE ON A LEVEL FLOOR AND CHOCK THE WHEELS TO PREVENT THE VEHICLE FROM
MOVING OR ROLLING. DO NOT WORK AROUND OR UNDER A RAISED VEHICLE SUPPORTED BY ONLY
A FLOOR JACK OR OTHER LIFTING DEVICE. ALWAYS SUPPORT A RAISED VEHICLE WITH RIGID SAFETY
STANDS. FAILURE TO DO SO CAN CAUSE SERIOUS PERSONAL INJURY OR DAMAGE TO EQUIPMENT.
SHOCK ABSORBERS
THE SHOCK ABSORBERS ARE THE REBOUND TRAVEL STOPS FOR THE SPRINGS. ANYTIME THE FRONT
AXLE ON AN SOFTEK SUSPENSION IS SUSPENDED IT IS MANDATORY THAT THE SHOCK ABSORBERS
REMAIN CONNECTED. FAILURE TO DO SO COULD CAUSE A REVERSE ARCH IN THE STEEL LEAF SPRINGS,
POSSIBLY RESULTING IN PREMATURE STEEL LEAF SPRING FAILURE.
KINGPINS
STEERTEK IS A UNIQUE AXLE, IN THAT THE KINGPIN IS CRYOGENICALLY INSTALLED IN THE AXLE. THE
KINGPIN IS A NON-REPLACEABLE COMPONENT OF THE AXLE ASSEMBLY. DO NOT TRY TO REMOVE THE
KINGPIN. IF THE KINGPIN SHOWS SIGNS OF MOVEMENT, CONTACT THE HENDRICKSON TECHNICAL
SERVICES DEPARTMENT.
MODIFYING COMPONENTS
DO NOT MODIFY OR REWORK PARTS WITHOUT AUTHORIZATION FROM HENDRICKSON. DO NOT
SUBSTITUTE REPLACEMENT COMPONENTS NOT AUTHORIZED BY HENDRICKSON. USE OF MODIFIED,
REWORKED, SUBSTITUTE OR REPLACEMENT PARTS NOT AUTHORIZED BY HENDRICKSON MAY NOT
MEET HENDRICKSON’S SPECIFICATIONS, AND CAN RESULT IN FAILURE OF THE PART, LOSS OF VEHICLE
CONTROL, POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE, AND WILL VOID ANY APPLICABLE
WARRANTIES. USE ONLY HENDRICKSON AUTHORIZED REPLACEMENT PARTS.
17730-312
5
Important Safety Notice
SOFTEK® for Lion Bus
TORCH / WELDING
DO NOT USE A CUTTING TORCH TO REMOVE ANY ATTACHING FASTENERS. THE USE OF HEAT ON
SUSPENSION AND AXLE COMPONENTS WILL ADVERSELY AFFECT THE STRENGTH OF THESE PARTS.
A COMPONENT DAMAGED IN THIS MANNER CAN RESULT IN THE LOSS OF VEHICLE CONTROL AND
POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE.
EXERCISE EXTREME CARE WHEN HANDLING OR PERFORMING MAINTENANCE IN THE AREA OF THE
LEAF SPRING ASSEMBLY AND AXLE. DO NOT CONNECT ARC WELDING GROUND LINE TO THE LEAF
SPRING ASSEMBLY OR AXLE. DO NOT STRIKE AN ARC WITH THE ELECTRODE ON THE LEAF SPRING
ASSEMBLY OR AXLE. DO NOT USE HEAT NEAR THE LEAF SPRING ASSEMBLY OR AXLE. DO NOT NICK OR
GOUGE THE LEAF SPRING ASSEMBLY OR AXLE. SUCH IMPROPER ACTIONS CAN CAUSE DAMAGE TO THE
LEAF SPRING ASSEMBLY OR THE AXLE COULD FAIL, AND CAN CAUSE LOSS OF VEHICLE CONTROL AND
POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE.
AXLE CAMBER
UNAUTHORIZED WELDING OR MODIFICATIONS CAN CAUSE CRACKS OR OTHER AXLE STRUCTURAL
DAMAGE AND RESULT IN LOSS OF VEHICLE CONTROL, SEVERE PERSONAL INJURY OR DEATH. DO NOT
BEND, WELD OR MODIFY AXLE WITHOUT AUTHORIZATION FROM HENDRICKSON.
AXLE CAMBER IS NOT ADJUSTABLE. DO NOT CHANGE THE AXLE CAMBER ANGLE OR BEND THE AXLE
BEAM, SEE FIGURE 3-2. BENDING THE AXLE BEAM TO CHANGE THE CAMBER ANGLE CAN DAMAGE THE
AXLE AND REDUCE AXLE STRENGTH, WILL VOID HENDRICKSON’S WARRANTY AND CAN CAUSE LOSS
OF VEHICLE CONTROL, POSSIBLY CAUSING PERSONAL INJURY OR PROPERTY DAMAGE.
DAMAGED COMPONENTS
IF A VEHICLE EQUIPPED WITH A STEERTEK AXLE IS INVOLVED IN A CRASH, THE AXLE STEER KNUCKLES
MUST BE DISASSEMBLED AND A THOROUGH INSPECTION OF THE AXLE MUST BE PERFORMED NOTING
THE CONDITION OF THE AXLE BEAM, KINGPINS, AND KNUCKLE ASSEMBLIES, INCLUDING THE AREAS
OF AXLE TO KINGPIN INTERFACE FOR ANY DAMAGE, GAPS, KINGPIN MOVEMENT OR PLAY. IF ANY
COMPONENT APPEARS DAMAGED, OR THE KINGPINS APPEAR TO CONTAIN ANY DAMAGE, GAPS,
MOVEMENT OR PLAY, THE COMPLETE AXLE ASSEMBLY MUST BE REPLACED.
IN ADDITION, IN THE EVENT A CRASH RESULTS IN EXCESSIVE SIDE LOAD DAMAGE TO ADJACENT
PARTS, SUCH AS A BENT WHEEL, HUB, OR SPINDLE, IT IS STRONGLY RECOMMENDED TO REPLACE THE
COMPLETE AXLE ASSEMBLY.
CONTACT HENDRICKSON TECHNICAL SERVICES WITH ANY QUESTIONS. FAILURE TO REPLACE ANY
DAMAGED COMPONENTS CAN CAUSE LOSS OF VEHICLE CONTROL, POSSIBLE PERSONAL INJURY,
DEATH, OR PROPERTY DAMAGE AND WILL VOID ANY APPLICABLE WARRANTIES.
PARTS CLEANING
SOLVENT CLEANERS CAN BE FLAMMABLE, POISONOUS AND CAUSE BURNS. TO HELP AVOID SERIOUS
PERSONAL INJURY, CAREFULLY FOLLOW THE MANUFACTURER’S PRODUCT INSTRUCTIONS AND
GUIDELINES AND THE FOLLOWING PROCEDURE:
1. WEAR PROPER EYE PROTECTION
2. WEAR CLOTHING THAT PROTECTS YOUR SKIN
3. WORK IN A WELL VENTILATED AREA
4. DO NOT USE GASOLINE, OR SOLVENTS THAT CONTAIN GASOLINE. GASOLINE CAN EXPLODE
5. HOT SOLUTION TANKS OR ALKALINE SOLUTIONS MUST BE USED CORRECTLY. FOLLOW THE
MANUFACTURER’S RECOMMENDED INSTRUCTIONS AND GUIDELINES CAREFULLY TO HELP
PREVENT PERSONAL ACCIDENT OR INJURY
DO NOT USE HOT SOLUTION TANKS OR WATER AND ALKALINE SOLUTIONS TO CLEAN GROUND OR
POLISHED PARTS. DOING SO WILL CAUSE DAMAGE TO THE PARTS AND VOID WARRANTY.
Important Safety Notice
6
17730-312
SOFTEK® for Lion Bus
OFF ROADWAY TOWING
WHEN A VEHICLE IS DISABLED AND EQUIPPED WITH A STEERTEK AXLE, CARE MUST BE TAKEN TO ENSURE
THERE IS NO DAMAGE TO THE SUSPENSION OR AXLE WHEN TOWING THE VEHICLE. THE USE OF TOW
STRAPS ARE NECESSARY TO TOW A DISABLED VEHICLE FROM A REPAIR FACILITY PARKING LOT INTO THE
SHOP BAY. THE TOW STRAPS SHOULD BE CONNECTED TO THE TOW HOOKS PROVIDED BY THE VEHICLE
MANUFACTURER AT THE FRONT OF THE BUMPER. IF THE USE OF TOW HOOKS IS NOT AN OPTION,THEN TOW
STRAPS MAY BE WRAPPED AROUND THE FRONT STEERTEK AXLE, SEE FIGURE 3-1, IN A MANNER THAT IS
ACCEPTABLE FOR TOWING THE VEHICLE FROM A REPAIR FACILITY PARKING LOT INTO THE SHOP BAY. DO NOT
USE A TOW CHAIN AROUND THE FRONT STEERTEK AXLE TO TOW THE VEHICLE, DOING SO WILL DAMAGE
THE AXLE AND VOID ANY APPLICABLE WARRANTY, SEE FIGURE 3-1. FOR DETAILED INSTRUCTIONS FOR
ON-HIGHWAY TOWING, SEE TOWING PROCEDURE SECTION OF THIS PUBLICATION.
FIGURE 3-1
REPAIR AND RECONDITIONING
THE REPAIR OR RECONDITIONING OF SUSPENSION OR AXLE COMPONENTS IS NOT ALLOWED, SEE
LABEL IN FIGURE 3-2. ANY AXLE COMPONENTS FOUND TO BE DAMAGED OR OUT OF SPECIFICATIONS
MUST BE REPLACED. ALL MAJOR HENDRICKSON COMPONENTS ARE HEAT TREATED AND TEMPERED.
SOFTEK COMPONENTS CANNOT BE BENT, WELDED, HEATED, OR REPAIRED WITHOUT REDUCING THE
STRENGTH OR LIFE OF THE COMPONENT. FAILURE TO FOLLOW THESE GUIDELINES CAN CAUSE LOSS
OF VEHICLE CONTROL, POSSIBLE PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE AND WILL VOID
APPLICABLE WARRANTIES.
FIGURE 3-2 REPLACE ANY SAFETY DECALS THAT ARE FADED, TORN, MISSING, ILLEGIBLE, OR OTHERWISE
DAMAGED. CONTACT HENDRICKSON TO ORDER REPLACEMENT LABELS.
17730-312
7
Important Safety Notice
SOFTEK® for Lion Bus equipped with Drum Brakes
SECTION 4
Parts Lists
Parts Lists
8
17730-312
SOFTEK® for Lion Bus equipped with Drum Brakes
KEY NO. PART NO.
DESCRIPTION
1
2
3
4
5
6
7
VEHICLE
QTY.
KEY NO. PART NO.
DESCRIPTION
58913-009L
58917-001
58917-016
22962-001
49842-000
59946-001
59423-002
60961-162
Shock Absorber
2
¾"-10 UNC x 4¼" Upper Shock Bolt
2
¾"-10 UNC x 8½" Lower Shock Bolt
2
¾" Hardened Washer
8
¾"-10 UNC Hex Locknut
4
Shock Spacer
2
Shock Bracket
2
Leaf Spring Assembly Service Kit,
Includes Key Nos. 8, 13-14
8
53624-000
Leaf Spring Assembly
2
9
64488-002
Front Hanger
2
10
58258-008
M20 x 160 mm Hex Bolt
2
11
58246-004
M20 Hardened Washer
4
12
58259-000
M20 Locknut
2
13
66510-001
Rear Shackle Bracket Assembly
2
14
64314-000
Rear Shackle Plate
4
15
58258-008
M20 x 160 mm Hex Bolt
4
16
58246-004
M20 Hardened Washer
8
17
58259-000
M20 Locknut
4
64502-048
STEERTEK Axle Assembly with Brake Assembly,
Includes Key Nos. 18-43, 50-71
18
64905-001
Axle & Kingpin Assembly
1
Lower Steering Knuckle Assembly, Includes
Key Nos. 25, 29, 31
19
58900-027 Left Hand
1
20
58900-028 Right Hand
1
Upper Steering Knuckle Assembly, Includes
Key Nos. 25, 29
21
60903-034 Left Hand, Replaces 60903-004
1
22
60904-002 Right Hand
1
Kingpin Bushing and Bearing Service Kits
60961-040
Axle Set, Includes Kit Nos. 60961-009 & -039
60961-009
Left Hand with Composite Thrust Bearing,
Includes Key Nos. 23-26, 28-30 and Loctite
60961-039
Right Hand with Roller Thrust Bearing,
Includes Key Nos. 23-25, 27-30 and Loctite
23
59156-000
Grease Cap Assembly
4
24
58937-000
Retaining Ring
4
25
58909-000
Kingpin Bushing
4
Thrust Bearing Service Kits
60961-043 Axle Set, Includes Kit Nos. 60961-041 & -042
60961-041
Left Hand Composite Thrust Bearing, Includes
Key Nos. 26, 28-30 and Loctite
60961-042
Right Hand Roller Thrust Bearing, Includes
Key Nos. 27-30 and Loctite
26
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 📌【We are Here for You】Dear valued customer, please be...
- 🚀【5X Faster Next-Level Hardware, Same as MK900/ MX...
- 🔥【3000+ Active Tests = MK900/MK900BT but...
- 📢【2026 U.S. Version, All-in-One as MK808S/ MK808Z...
- 🔥【28+ Hot Services for 150+ Brands】Same as MaxiCOM...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 17730-312 Rev A
Replacement Service Bulletin Number:
MFR Communication Date: 2019-03-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU coding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Programming): Allows for Ford, for Lincoln, and for Mazda ECU programming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- Cost-effective ECU Coding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 3 Years Software Update, Value for Money: With 3 years of software updates and 22+ languages(no IP restrictions), XTOOL D7S auto scanner code scanner ensures ongoing compatibility for the latest car models and improved diagnostic functions. This all system vehicle diagnostic scanner comes with a 30-day return policy and a 24-month repair for dependable performance. XTOOL are dedicated to your satisfaction, so enjoy seamless support and lifetime expert assistance. Should you encounter any issues or concerns, don’t hesitate to reach out XTOOL. D7S with newest update with 22 languages freely transfer without authorization, check details from setting-language or from XTOOL
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.