NHTSA ID Number: 10153960
Manufacturer Communication Number: TP-H633 RevH
TSB/Document Date: 2019-03-04
Summary
Operation Name: Hendrickson
Auxiliary Axle Systems Document Name: Technical Procedure - COMPOSOLITE SC Steerable Auxiliary Axle Suspension Systems; Installation & Preventive Maintenance Procedure Summary: This document provides installation, service and preventive maintenance procedures for Hendrickson COMPOSILITE SC steerable auxiliary axle suspension systems.
COMPOSILITE® SC Steerable Auxiliary
Axle Suspension Systems
SUBJECT: Installation & Preventive Maintenance Procedure
LIT NO: TP–H633
DATE: January 2019
REVISION: H
TABLE OF CONTENTS
Section 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
Section 2
Product Description . . . . . . . . . . . . . . . . . 2
Section 3
Important Safety Notice. . . . . . . . . . . . . . 5
Section 4
Special Tools . . . . . . . . . . . . . . . . . . . . . . 10
Section 5
Pre-Installation/Installation Check List
Adjustable Ride Height (if required) . . . . . . 12
Ride Height Spacer (if equipped). . . . . . . . . 12
Adjustable Frame Width . . . . . . . . . . . . . . . 13
Suspension Mounting Installation. . . . . . . . 13
Suspension Frame Rail . . . . . . . . . . . . . . . . 14
Upper Air Spring Plate Assembly and Air Spring .
16
Install and Inspection Checklist After
Suspension Assembly. . . . . . . . . . . . . . . 17
Section 6
Section 8
18
18
18
18
18
19
Preventive Maintenance
Hendrickson Recommended
Inspection Intervals . . . . . . . . . . . . . . . .
Component Inspection . . . . . . . . . . . . . . . .
Lubrication Intervals . . . . . . . . . . . . . . . . . .
Kingpin Lubrication. . . . . . . . . . . . . . . . . . .
Tie Rod End Lubrication. . . . . . . . . . . . . . . .
Lift Axle (LA) and Compliant Tie Rod (CTR)
Structural Inspection . . . . . . . . . . . . . . .
20
20
21
21
21
22
Component Replacement
Steering Knuckle Disassembly. . . . . . . . . . . 30
Kingpin Preparation and Measurement. . . . 30
Fabricated Knuckle Kingpin Bushing . . . . . . 32
Cast Knuckle Kingpin Bushing Removal. . . . 33
Cast Knuckle Bore Measurement. . . . . . . . . 33
Cast Knuckle Kingpin Bushing Reaming. . . . 34
Kingpin Bushing Reaming. . . . . . . . . . . . . . 34
Kingpin Seal Installation. . . . . . . . . . . . . . . 36
Steering Knuckle Assembly. . . . . . . . . . . . . 36
Auxiliary Axle Brake Replacement . . . . . . . . 38
Lift Beam Urethane Bushings & Inner Sleeve .39
Initial Axle Adjustments/Final Inspection
Toe Setting . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Angle - Mechanical Stop . . . . . . . . . . .
Axle Controls. . . . . . . . . . . . . . . . . . . . . . . .
Lock Straight. . . . . . . . . . . . . . . . . . . . . . . .
Manual and Automatic Lift. . . . . . . . . . . . . .
Final Inspection. . . . . . . . . . . . . . . . . . . . . .
Section 7
Tie Rod Adjustment/Toe Setting Adjustment. 22
Tie Rod End Inspection . . . . . . . . . . . . . . . . 22
Kingpin Bushing Inspection. . . . . . . . . . . . . 25
Steering Knuckle Inspection & Adjustment. . 25
Stabilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Tire Inspection. . . . . . . . . . . . . . . . . . . . . . . 27
Section 9
Air Control Systems . . . . . . . . . . . . . . . . 41
Section 10 Torque Specifications. . . . . . . . . . . . . . . 42
Section 11 Troubleshooting Guide. . . . . . . . . . . . . . 43
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
SECTION 1
Introduction
This publication is intended to acquaint and assist maintenance personnel with the installation and preventive maintenance of Hendrickson COMPOSILITE® SC Steerable Auxiliary Axle
Suspension Systems.
NOTE
Use only Hendrickson Genuine Parts for servicing this suspension system. Reference
Hendrickson COMPOSILITE SC Part List, Literature No. H732.
It is important to read and understand this entire publication prior to performing any installation, service or maintenance of the product. The information in this publication contains product
images, safety information, product specifications, features and proper installation, service and
maintenance instructions for Hendrickson SC steerable auxiliary axle suspension systems.
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 1-800-660-2829 (toll–free U.S. and Canada), 1–740–929–5600 (Outside U.S. and
Canada), or e-mail: liftaxle@hendrickson‑intl.com.
The latest revision of this publication and the COMPOSILITE SC Parts List Lit. No. H732
are also available online at www.hendrickson-intl.com.
SECTION 2
Product Description
FIGURE 2–1
COMPOSILITE SCO13 • SCO20
COMPOSILITE SCR13
COMPOSILITE SCT 10 • SCT 13 • SCT 20
Introduction
2
TP–H633
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
Hendrickson’s COMPOSILITE SC family of lift axles for steerable truck and trailer applications
delivers reliability, cost–effectiveness and innovation. The COMPOSILITE SC family offers a full
range of capacities from 10,000 to 20,000 pounds, including axles for roll–off and twin steer
applications.
COMPOSILITE STEERABLE LIFT AXLE SPECIFICATIONS
MODEL
MAXIMUM CAPACITY
(lbs.)
SC 08
APPLICATION WEIGHT (lbs.)
TRUCK
RIDE HEIGHTS
(Inches +/- 1")
8,000
735
778
12.5 - 20.5
SC 10
10,000
735
778
12.5 - 20.5
SC 13
13,500
848
865
8.5 - 18.5
SC 20
20,000
1,357
1,402
9.5 - 13.5
SCO 13
13,500
851
N/A
8.5 - 18.5
SCO 20
20,000
1,393
N/A
9.5 - 13.5
SCH 10
10,000
1,133
N/A
10.5 - 20.5
SCR 13
13,500
1,029
N/A
9.0 - 15.0
IDENTIFYING YOUR LIFT AXLE SUSPENSION(S)
NOTE
All Hendrickson Auxiliary Lift Axles are manufactured with a serial number plate to help in identification, see Figure 2–2.
When identifying your Hendrickson Auxiliary Lift Axle visually, see Figure 2–2 to compare with
your suspension.
AXLE TAG IDENTIFICATION
The Serial Number Label shown in Figure 2–2, is stainless steel label and attached to the body
of the suspension system. The label contains the serial number and the part number unique to
that particular suspension system. These two numbers are important to use when contacting
Hendrickson for customer service, replacement parts, and warranty issues.
FIGURE 2–2 Serial Number Label
TP–H633
3
Product Description
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
AUXILIARY AXLE SUSPENSION LOCATION
TABLE 2–1
1. Locate your vehicle wheel base
as shown in Table 2–1.
2. Follow the row to the right
column that most closely represents your vehicle’s front inside
turn angle.
3. The number in the front Axle
I n s i d e Tu r n A n g l e column
(shaded area in Table 2–1) is
the recommended maximum
distance that the self-steer auxiliary axle can be placed in front
of the vehicle’s rear tandem, see
Figure 2–3.
COMPOSILITE SC SUSPENSION LOCATION CHART
Front Axle Inside Turn Angle
Vehicle
Wheel Base
35°
40°
45°
140"
120"
100"
84"
160"
137"
115"
96"
180"
154"
129"
108"
200"
171"
143"
120"
220"
189"
157"
132"
240"
206"
172"
144"
260"
223"
186"
156"
280"
240"
201"
168"
FIGURE 2–3
Product Description
4
TP–H633
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
SECTION 3
Important Safety Notice
Proper installation, maintenance, service, and repair is important for 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.
All safety related information should be read carefully to help prevent personal injury and to
assure that proper methods are used. Improper installation, maintenance, service or repair may
damage the vehicle, cause personal injury, render it unsafe in operation, or void 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 installation, 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.
NOTE
An operating procedure, practice condition, etc. which is essential to emphasize.
SERVICE HINT
A helpful suggestion that will make the servicing being performed a little easier and/or faster.
The torque symbol alerts you to tighten fasteners to a specified torque value. Refer to Torque
Specifications Section of this publication.
TP–H633
5
Important Safety Notice
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
■■
SAFETY PRECAUTIONS
LIFT AXLE RAPID MOVEMENT
LIFT AXLE RAPID MOVEMENT CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
IF LIFT AXLE IS OPERATED BY AN AUTOMATIC OR SEMI‑AUTOMATIC LIFT AXLE CONTROL SYSTEM,
SUCH SYSTEM MAY CAUSE LIFT AXLE TO AUTOMATICALLY RAISE OR LOWER UNDER DIFFERENT
CONDITIONS.
LIFT AXLE ACTIVATION AND MOVEMENT MAY VARY DEPENDING ON THE BRAND, CONFIGURATION,
AND OPERATING CONDITION OF THE LIFT AXLE CONTROL SYSTEM AND/OR OTHER FACTORS.
READ, UNDERSTAND, AND COMPLY WITH ALL APPLICABLE OPERATING INSTRUCTIONS AND SAFETY
INFORMATION PROVIDED BY THE LIFT AXLE CONTROL SYSTEM MANUFACTURER AND VEHICLE
MANUFACTURER.
ENSURE ALL PERSONNEL ARE CLEAR OF LIFT AXLE BEFORE AND DURING VEHICLE LOADING AND LIFT
AXLE ACTIVATION UP OR DOWN.
LIFT AXLE ACTIVATION
DO NOT LOWER LIFT AXLE WHILE VEHICLE IS IN MOTION (FORWARD OR REVERSE) ABOVE 10 MPH.
FAILURE TO DO SO CAN CAUSE COMPONENT DAMAGE AND PREMATURE COMPONENT WEAR.
REVERSE LOCKOUT OPERATION
DO NOT ACTUATE STEERABLE LIFT AXLE REVERSE LOCKOUT FEATURE (IF EQUIPPED) WHILE VEHICLE
IS TURNING. FAILURE TO DO SO CAN CAUSE COMPONENT DAMAGE.
BEFORE TRAVELING IN REVERSE:
• E NSURE STEERABLE LIFT AXLE REVERSE LOCKOUT FEATURE (IF EQUIPPED) IS PROPERLY
ACTUATED.
• RAISE ALL STEERABLE LIFT AXLES NOT EQUIPPED WITH REVERSE LOCKOUT FEATURE.
FAILURE TO DO SO CAN CAUSE COMPONENT DAMAGE.
REVERSE CASTER OPERATION
DO NOT LOWER STEERABLE LIFT AXLE EQUIPPED WITH REVERSE CASTER FEATURE WHILE VEHICLE IS
MOVING IN REVERSE. FAILURE TO DO SO CAN CAUSE COMPONENT DAMAGE.
LOAD CAPACITY
ADHERE TO THE PUBLISHED CAPACITY RATINGS FOR THE AUXILIARY AXLES. ADD-ON AXLE
ATTACHMENTS (I.E. SLIDING FIFTH WHEELS) AND OTHER LOAD TRANSFERRING DEVICES CAN
INCREASE THE AUXILIARY AXLES LOAD ABOVE THE RATED AND APPROVED CAPACITIES WHICH CAN
RESULT IN FAILURE AND ADVERSE VEHICLE HANDLING, POSSIBLY CAUSING PERSONAL INJURY OR
PROPERTY DAMAGE.
DAILY/PRE-TRIP OPERATOR INSPECTION
DAILY OR BEFORE EACH TRIP, INSPECT LIFT AXLE AND ALL ADJACENT COMPONENTS FOR PROPER
OPERATING CONDITION. IDENTIFY AND REPAIR ANY LOOSE OR DAMAGED COMPONENTS. REFER TO
THE PREVENTIVE MAINTENANCE SECTION IN THIS PUBLICATION.
REPAIR AND RECONDITIONING
THE REPAIR OR RECONDITIONING OF AUXILIARY AXLE COMPONENTS THAT ARE BENT, DAMAGED OR
OUT OF SPECIFICATIONS IS NOT ALLOWED. ANY AXLE COMPONENTS FOUND TO BE DAMAGED OR
OUT OF SPECIFICATIONS MUST BE REPLACED. AXLE COMPONENTS CANNOT BE BENT, WELDED,
HEATED, OR REPAIRED WITHOUT REDUCING THE STRENGTH OR LIFE OF THE COMPONENT. FAILURE
TO FOLLOW THESE GUIDELINES CAN CAUSE ADVERSE VEHICLE HANDLING, POSSIBLE PERSONAL
INJURY, DEATH, OR PROPERTY DAMAGE AND WILL VOID APPLICABLE WARRANTIES.
Important Safety Notice
6
TP–H633
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
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, ADVERSE VEHICLE
HANDLING, PERSONAL INJURY, OR PROPERTY DAMAGE.
LOOSE OR OVER TORQUED FASTENERS CAN CAUSE COMPONENT DAMAGE, ADVERSE VEHICLE
HANDLING, 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.
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, ADVERSE
VEHICLE HANDLING, POSSIBLE PERSONAL INJURY OR PROPERTY DAMAGE, AND WILL VOID
APPLICABLE WARRANTIES. USE ONLY HENDRICKSON AUTHORIZED REPLACEMENT PARTS.
THE VEHICLE MANUFACTURER SHOULD BE CONSULTED BEFORE MAKING ANY CHANGES TO THE
VEHICLE’S FRAME. TYPICALLY, CUTTING OR ALTERING THE VEHICLE’S FRAME OR SIDE RAIL IS NOT
PERMITTED AND MAY AFFECT THE MANUFACTURER’S WARRANTY COVERAGE.
ANY INSTALLATION DEVIATIONS MUST BE APPROVED IN WRITING BY HENDRICKSON’S PRODUCT
ENGINEERING DEPARTMENT. FAILURE TO COMPLY WITH ANY OF THE ABOVE WILL VOID APPLICABLE
WARRANTIES.
LIFT AXLE CAMBER
UNAUTHORIZED WELDING OR MODIFICATIONS CAN CAUSE CRACKS OR OTHER LIFT AXLE
STRUCTURAL DAMAGE AND RESULT IN ADVERSE VEHICLE HANDLING, 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. BENDING THE AXLE BEAM TO CHANGE THE CAMBER ANGLE CAN DAMAGE THE AXLE AND
REDUCE AXLE STRENGTH, CAN CAUSE ADVERSE VEHICLE HANDLING, POSSIBLY CAUSING PERSONAL
INJURY OR PROPERTY DAMAGE AND WILL VOID APPLICABLE WARRANTIES.
IMPROPER JACKING METHOD
IMPROPER JACKING METHOD CAN CAUSE STRUCTURAL DAMAGE AND RESULT IN ADVERSE VEHICLE
HANDLING, SEVERE PERSONAL INJURY OR DEATH. DO NOT USE AXLE BEAM OUTBOARD OF AXLE
SPRING SEATS. REFER TO VEHICLE MANUFACTURER FOR PROPER JACKING INSTRUCTIONS.
DAMAGED AXLE COMPONENTS
IF A VEHICLE EQUIPPED WITH A HENDRICKSON AUXILIARY AXLE IS INVOLVED IN A CRASH, 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
SUCH ADJACENT PARTS AND THE COMPLETE AXLE ASSEMBLY.
CONTACT HENDRICKSON TECHNICAL SERVICES DEPARTMENT WITH ANY QUESTIONS. FAILURE
TO REPLACE ANY DAMAGED COMPONENTS CAN CAUSE ADVERSE VEHICLE HANDLING, POSSIBLE
PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE AND WILL VOID ANY APPLICABLE WARRANTIES.
TP–H633
7
Important Safety Notice
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
SUPPORT THE VEHICLE PRIOR TO SERVICING
PLACE THE VEHICLE ON A LEVEL FLOOR AND CHOCK THE WHEELS TO HELP PREVENT THE VEHICLE
FROM MOVING. PRIOR TO SERVICING A VEHICLE IN THE RAISED POSITION, PROPERLY SUPPORT THE
VEHICLE WITH SAFETY STANDS. DO NOT WORK AROUND OR UNDER A RAISED VEHICLE SUPPORTED
ONLY WITH FLOOR JACKS OR OTHER LIFTING DEVICES, FAILURE TO DO SO CAN CAUSE DEATH,
PERSONAL INJURY OR DAMAGE TO COMPONENTS.
SUPPORT THE LIFT AXLE PRIOR TO SERVICING
PLACE THE VEHICLE ON A LEVEL FLOOR AND CHOCK THE WHEELS TO HELP PREVENT THE VEHICLE
FROM MOVING. PRIOR TO SERVICING A LIFT AXLE IN THE RAISED POSITION, (1) PROPERLY SUPPORT
THE LIFT AXLE WITH SAFETY STANDS, AND (2) RELEASE ALL AIR PRESSURE IN THE LIFT AXLE AIR
SPRINGS AND RIDE SPRINGS. DO NOT WORK AROUND OR UNDER A RAISED LIFT AXLE SUPPORTED
ONLY WITH FLOOR JACKS OR OTHER LIFTING DEVICES, FAILURE TO DO SO CAN CAUSE DEATH,
PERSONAL INJURY OR DAMAGE TO COMPONENTS.
AIR SPRINGS
AIR SPRING ASSEMBLIES MUST BE DEFLATED PRIOR TO LOOSENING ANY ADJACENT HARDWARE.
UNRESTRICTED AIR SPRING ASSEMBLIES CAN VIOLENTLY SHIFT. DO NOT INFLATE AIR SPRING
ASSEMBLIES WHEN THEY ARE UNRESTRICTED. AIR SPRING ASSEMBLIES MUST BE RESTRICTED
BY SUSPENSION OR OTHER ADEQUATE STRUCTURE. DO NOT INFLATE BEYOND PRESSURES
RECOMMENDED BY AIR SPRING MANUFACTURER, CONTACT HENDRICKSON TECHNICAL SERVICES
FOR DETAILS. IMPROPER USE OR OVER INFLATION MAY CAUSE AIR SPRING ASSEMBLIES TO BURST,
CAUSING PROPERTY DAMAGE AND/OR SEVERE PERSONAL INJURY.
AIR SPRINGS
EXHAUST ALL PRESSURE IN LIFT AXLE AIR SPRINGS AND VEHICLE AIR SYSTEM BEFORE WORKING ON
OR AROUND LIFT AXLE. FAILURE TO DO SO CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
AIR SPRINGS
PRIOR TO AND DURING DEFLATION AND INFLATION OF THE AIR SUSPENSION SYSTEM, ENSURE
THAT ALL PERSONNEL AND EQUIPMENT ARE CLEAR FROM UNDER THE VEHICLE AND AROUND THE
SERVICE AREA, FAILURE TO DO SO CAN CAUSE SEVERE PERSONAL INJURY, DEATH, OR PROPERTY
DAMAGE.
AIR SPRINGS
INFLATE THE SUSPENSION SLOWLY AND MAKE SURE THE RUBBER BLADDER OF THE AIR SPRING
INFLATES UNIFORMLY AND IS NOT BINDING. FAILURE TO DO SO CAN CAUSE DAMAGE TO THE AIR
SPRING AND/OR MOUNTING BRACKETS AND WILL VOID APPLICABLE WARRANTIES.
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 POTENTIAL PERSONAL INJURY
OR DAMAGE TO EQUIPMENT INVOLVED.
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.
OFF ROADWAY TOWING
HENDRICKSON DOES NOT RECOMMEND TOWING A VEHICLE BY THE AUXILIARY AXLE. DOING SO
WILL DAMAGE THE AXLE AND WILL VOID APPLICABLE WARRANTIES.
Important Safety Notice
8
TP–H633
COMPOSILITE® SC Steerable Auxiliary Axle Suspension Systems
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 PROCEDURES:
4. WEAR PROPER EYE PROTECTION.
5. WEAR CLOTHING THAT PROTECTS YOUR SKIN.
6. WORK IN A WELL VENTILATED AREA.
7. DO NOT USE GASOLINE OR SOLVENTS THAT CONTAIN GASOLINE. GASOLINE CAN EXPLODE.
8. 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 APPLICABLE
WARRANTIES.
TP–H633
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TSB/Document ID: TP-H633 RevH
Replacement Service Bulletin Number:
MFR Communication Date: 2019-01-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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- 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 c0ding, 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 Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming 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
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding 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
Last update on 2026-06-30 / Affiliate links / Images from Amazon Product Advertising API
- 【✅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.
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
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