NHTSA ID Number: 10055872
Manufacturer Communication Number: SMB-134
TSB/Document Date: 2014-08-01
Summary
NEW FLYER
: INFORMATION CONCERNING THE REVISED OEM INFORMATION TO ELIMINATE THE REQUIREMENT FOR DISC BRAKE CHAMBER REPLACEMENT WHEN REMOVED FROM THE BRAKE CALIPER DURING ROUTINE BRAKE SERVICE. *JS
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)
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
This product presentation was made with AAWP plugin.
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: SMB-134
Replacement Service Bulletin Number:
MFR Communication Date: 2014-08-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
SB-10055872-3821
SERVICE MANUAL BULLETIN
This Service Manual Bulletin is prepared by the Publications Department of New Flyer Industries
Canada ULC. Refer to details below.
SMB-134
ISSUE DATE: Mar 07 2014
APPLICABILITY
VEHICLE LENGTH
30ft.
35ft.
40ft.
60ft.
ALL
VEHICLE TYPE
High Floor
Low Floor
Invero®
Xcelsior®
ALL
Diesel
Electric
CNG
LNG
Diesel/Electric
Gas/Electric
Fuel Cell
FUEL TYPE
ALL
SUBJECT
Front & Rear Disc Brake Chamber Reuse, Inspection & Installation
SECTION TITLE
PM - PREVENTIVE MAINTENANCE
1 - FRONT AXLE & SUSPENSION
2 - REAR AXLE & SUSPENSION
DETAILS
This bulletin provides recently revised OEM information to eliminate the
mandatory requirement for disc brake chamber replacement when
removed from the brake caliper during routine brake service. The brake
chamber is suitable for reinstallation providing it meets the inspection
criteria defined within this bulletin.
This information supersedes any prior information on this subject
already provided in your New Flyer Service Manuals. Make this Service
Bulletin available to service personnel to inform them of changed information.
SMB-134
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2014 New Flyer Industries Canada ULC
1 of 4
SERVICE MANUAL BULLETIN
SMB-134
1.
Standard Brake Chamber
1.1.
Inspection
ble section of your New Flyer Service
Manual for torque specification.
☞NOTE:
When installing the front brake chamber,
ensure that the brake hose bracket is positioned between the lock nuts and the brake
caliper.
Disc brake chambers must be
inspected for seal condition and height
measurement before a used brake
chamber can be reinstalled.
If installing a used brake chamber, perform
the following inspection:
1. Inspect the condition of the seal. It must
not be torn, hardened, or show any other
signs of damage. Replace the brake chamber as an assembly if the seal is damaged.
2. Measure the height of the seal on the
brake chamber. The seal must protrude at
least 0.118” (3.0 mm) from the brake
chamber mounting surface. See “Fig. 1:
Brake Chamber Seal Measurement” on
page 2.
3. If the seal measures less than 0.118” (3.0
mm) then the brake chamber must be
replaced as an assembly.
1.1.1.
5. Ensure the front brake chamber rubber
vent tubes do not interfere with the brake
caliper. Rotate tubes as necessary, ensuring tubes face either downward or rearward for drainage.
6. Ensure the rear brake chamber balance
tube does not face directly toward road
surface.
7. Connect air line to brake chamber and
torque air line fitting to 25 to 30 ft-lbs. (34
to 40 Nm).
8. Start vehicle and charge air system to normal operating pressure.
9. Check for air leaks.
10.Actuate brakes several times and check for
proper operation.
.
Installation
Cover the brake chamber opening on
the brake caliper when cleaning the
mounting surfaces so as to prevent
entry of any contaminants.
386+52'
6($/
1. Clean the brake chamber and caliper
mounting surfaces. Ensure that any protective covers are removed from the brake
caliper.
´
PP
2. Apply Renolit Unitemp 2 grease to the
spherical cup located in the brake caliper
and to the end of the brake chamber push
rod. Do not apply an excessive amount of
grease.
3. Carefully install brake chamber on brake
caliper assembly.
4. Install new M16 lock nuts and torque to
specification. Refer to “Front Suspension
Torque Specifications” or “Rear Suspension Torque Specifications in the applica-
2 of 4
s134204a.svg
Fig. 1: Brake Chamber Seal Measurement
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2014 New Flyer Industries Canada ULC
SMB-134
SERVICE MANUAL BULLETIN
SMB-134
2.
Brake Chamber with EStroke
2.0.1.
Inspection
.
%5$.(&+$0%(5
25,1*
ALWAYS maintain the brake chamber
and ESP Sensor Pack spacer as an
assembly. DO NOT install a brake chamber without the ESP Sensor Pack
installed.
/2&.187
6($/
Disc brake chambers must be
inspected for seal condition and height
measurement before a used brake
chamber can be reinstalled.
(636(1625
3$&.
If installing a used brake chamber, perform
the following inspection:
1. Note the position of the ESP sensor pack
and carefully remove it from the brake
chamber. Retain the two O-rings. See “Fig.
2: Front Brake Chamber ESP Sensor
Pack” on page 3. and See “Fig. 3: Rear
Brake Chamber ESP Sensor Pack” on
page 3.
2. Inspect the condition of the seal. It must
not be torn, hardened, or show any other
signs of damage. Replace the brake chamber as an assembly if the seal is damaged
s134201a.svg
Fig. 2: Front Brake Chamber ESP Sensor Pack
.
%5$.(&+$0%(5
3. Measure the height of the seals on both
the ESP sensor pack and brake chamber.
The seal must protrude at least 0.118” (3.0
mm) from the ESP sensor pack and brake
chamber mounting surfaces. See “Fig. 4:
Brake Chamber & ESP Seal Measurement” on page 4.
25,1*
4. If either one of the seals measures less
than 0.118” (3.0 mm) then the brake chamber and ESP sensor pack must be
replaced as an assembly.
6($/
/2&.187
(636(1625
3$&.
5. Ensure the ESP sensor pack is correctly
positioned on the brake chamber and
retained with O-rings.
s134202a.svg
Fig. 3: Rear Brake Chamber ESP Sensor Pack
SMB-134
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2014 New Flyer Industries Canada ULC
3 of 4
SERVICE MANUAL BULLETIN
SMB-134
2.0.2.
9. Ensure that the electrical harness is properly routed and clamped as follows:
Installation
a. Sufficient slack should be provided
between the ESP sensor pack and first
clamping location on the air line fitting.
Cover the brake chamber opening on
the brake caliper when cleaning the
mounting surfaces so as to prevent
entry of any contaminants.
1. Clean the brake chamber and caliper
mounting surfaces. Ensure that any protective covers are removed from the brake
caliper.
2. Apply Renolit Unitemp 2 grease to the
spherical cup located in the brake caliper
and to the end of the brake chamber push
rod. Do not apply an excessive amount of
grease.
3. Carefully install brake chamber on brake
caliper assembly being careful not to
scratch or otherwise damage the painted
surface or target material of the push rod.
4. Install new M16 lock nuts and torque to
specification. Refer to “Front Suspension
Torque Specifications” or “Rear Suspension Torque Specifications in the applicable section of your New Flyer Service
Manual for torque specification.
☞NOTE:
When installing the front brake chamber,
ensure that the brake hose bracket is positioned between the lock nuts and the brake
caliper.
b. Additional cable ties should be provided
every 6 to 12” along the length of the air
line.
c. Provide slack at the electrical connector
location for ease of future servicing.
d. Run a cable tie through the electrical
connector clip and secure connector
body to the air line.
10.Start vehicle and charge air system to normal operating pressure.
11.Check for air leaks.
12.Actuate brakes several times and check for
proper operation.
.
187
6($/
25,1*
(63
6(1625
3$&.
´
PP
6($/
386+52'
5. Ensure the front brake chamber rubber
vent tubes do not interfere with the brake
caliper. Rotate tubes as necessary, ensuring tubes face either downward or rearward for drainage.
´
PP
6. Ensure the rear brake chamber balance
tube does not face directly toward road
surface.
7. Connect air line to brake chamber and
torque air line fitting to 25 to 30 ft-lbs. (34
to 40 Nm).
s134203a.svg
Fig. 4: Brake Chamber & ESP Seal Measurement
8. Connect the electrical harness to the ESP
sensor pack.
4 of 4
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2014 New Flyer Industries Canada ULC
SMB-134
- Stay Updated with Lifetime Access: This obd2 scanner includes lifetime free software updates for all app service functions. With a single payment, enjoy full access to diagnostics, reset tools, and maintenance features — zero subscription fees. A budget-friendly choice for weekend mechanics, home car owners, and DIYers, supporting vehicles from 1996 onward. Come to us with your VIN to check compatibility.
- Full Bidirectional Control/Active Tests & Stable Wireless Connectivity: This car code reader features full bidirectional control, allowing you to send commands to the vehicle's ECU for active tests on components such as fuel pumps, injectors, A/C clutches, windows, sunroofs, and more. This car scanner diagnostic tool helps DIYers quickly diagnose and test vehicle parts, cutting down troubleshooting and repair time. With BT 4.0 wireless connectivity, you can enjoy cable-free diagnostics up to 33 feet. Stand in your garage and test windows, wipers, or even engine components—all without needing to move around your car.
- Portable Car Scanner with 26 Resets: Scheduled vehicle maintenance with the A30M car diagnostic scanner can keep your vehicle in peak condition and save you big on dealership trips. The XTOOL A30M obd2 scanner diagnostic tool features essential reset and relearn functions, such as Oil Reset, EPB Reset (Electronic Parking Brake Release), SAS, ABS Brake Bleeding, Throttle Body Relearn, Injector Coding, Crank Sensor Relearn, Headlight Adjustment, and Tire Size Reset. Note: Service functions may vary by vehicle model – check compatibility beforehand!
- Wide Compatibility CAN FD & FCA
Autoauth: This obd2 scanner diagnostic tool is compatible with over 85+ car brands from the U.S., Europe, and Asia, providing extensive coverage through a BT connection with your smartphone or iPad. Now upgraded to support the latest protocols, it includes FCA AutoAuth access for Chrysler, Jeep, Dodge, and Fiat (2018+), and supports CAN FD for GM (2020+) models, giving you greater access to newer vehicles and systems. Note: The FCA AutoAuth account is not included with the device. Users must register and pay separately through the official FCA AutoAuth website to access diagnostic functions for vehicles that require it. - Up to 8 Live Data Streams Graphing – Real-Time Graphing for Deeper Insight: This car scanner supports up to 8 live data streams simultaneously with intuitive, real-time graphing. Gain comprehensive insights into your vehicle’s performance, making it easier to spot issues, detect trends, and make informed diagnostic decisions with confidence.
- Save $500+/Year with Pro-Level Diagnostics -No Subscriptions: The Portable XTOOL Anyscan A30D OBD2 scanner diagnostic tool includes free lifetime software updates for all app service functions, without extra cost. With a single payment, enjoy full access to diagnostics, relearn scan tools, and maintenance features. A cost-effective, smart choice for car owners and DIY enthusiasts, compatible with vehicles from 1996 onward. Please provide the car VIN and the special functions you need in advance so that we can confirm compatibility
- Bi-Directional Control for Faster Troubleshooting: Unlike a basic code reader, the A30D bi directional scan tool sends commands directly to your vehicle’s ECU to actively test components like fuel pump, valves, wipers, windows, doors, sunroof, and headlamps right from your smartphone. See component responses in real time without disassembly—perfect for brake jobs, electrical issues, and hard-to-find problems. This bidirectional obd2 scanner helps pinpoint faults faster, reduce guesswork, and avoid replacing good parts. An efficient, easy-to-use car scanner diagnostic tool built for DIYers, home garage users, and small-shop technicians who want real two-way scanner, not just codes
- 19 Reset Functions for Routine Maintenance: The A30D car diagnostic scanner provides 19 relearn functions without extra charges, including EPB Reset for parking brake replacement, TPMS Reset after tire changes, ABS Auto Bleeding, Oil Reset, SAS Reset, BMS Reset, Throttle Relearn, Injector C0ding, Gear Learning, Crank/Crankshaft/Cam/Ckp Sensor Relearn Tool, Transmission Match, Seat Calibration, Airbag Repair and more. This XTOOL A30D automotive scanner diagnostic tool supports preventive care, helping extend vehicle life and reduce costly shop visits. Functions vary by vehicle make and year—plz confirm compatibility before purchase
- Stable BT Connection & All-System & 8 Pids Live Data: The A30D wireless OBD2 scanner delivers a fast and stable wireless connection up to 33 feet, letting you move freely around the vehicle without tangled cables. Pair with with Android 9.0+ and iOS 10.0+ devices to turn your phone into a mobile auto scanner—perfect for home garages, driveways, or on-the-spot repairs. This full system scanner for cars provides real-time access to all major modules, including Engine, Gearbox, ABS, SRS, AC and more. with clear graphs, meters, and up to 8 PIDs displayed at once. This car code reader makes system monitoring visual, simple, easy to understand, and offering data logging for playback and deeper
- Wide Compatibility with CAN-FD & FCA Support: The A30D car computer diagnostic reader works with most 1996 and newer vehicles with a standard OBD2 port, including for Ford, for GM, for Toyota, for Honda, for Nissan,for Hyundai etc, with ongoing updates covering more car models and functions later. It also supports newer communication protocols like CAN-FD and FCA AutoAuth (Personal AutoAuth account and active subscription required, not included with the device!for Chrysler, for Dodge, for Jeep, for Fiat models). It is a future-ready automotive scanner diagnostic tool for households with multiple vehicles or part-time techs. Coverage vary by cars, plz check the compatibility first
- 2026 Latest Version – Now Upgraded from 32GB to 64GB: XTOOL D7 obd2 scanner diagnostic tool with bidirectional is designed for DIY enthusiasts, professional mechanics. It now offers 64GB storage for smoother operation. Its 5000mAh battery (with 2500mAh 7.3V fast-charging) supports all-day use. With FCA, CAN FD, and DOIP protocol support, it covers more vehicle models and newer systems. A newly added battery voltage reading shows battery status before diagnostics, helping prevent low-voltage tests that could harm the vehicle. The V2.0 Diagnostic Report allows shops to personalize results with logos, customer details, and attachments to build trust and maintain records.
- Save $500+/Year with Pro-Level Diagnostics: Whether you're a DIYer, starting a repair business, or beginning work at an auto shop, XTOOL D7 car scanner offers advanced features typically found only in expensive professional OBD2 scanners - without the high price tag. With 4,000+ Active Tests & Bidirectional Pids, 36+ Special Functions, advanced module resets like SRS Reset, OE-level All-System Scan (one-click), FCA AutoAuth, CAN FD, DoIP, data export, and 8 PIDs graphing, the D7 auto scan tool covers 100,000+ vehicles (excluding Indian models). Includes 3-Year updates and supports the XV200 endoscope to detect em!ssions and intermittent issues.
- Full Bidirectional Advantage Over Other Code Readers & Scan Tools: The XTOOL D7 automotive scanner offers true bidirectional control plus advanced bidirectional PIDs, letting you send commands to components like A/C clutches, fuel injectors, windows, fans and more, while monitoring sensor responses live to catch elusive issues (even those without warning lights). Unlike budget bidirectional obd2 scanners limited to basic active tests,the D7 car fault scanner gives you full bidirectional control to run ABS pump tests, throttle position, turn fan on/off and solenoid tests, etc. No guessing, no extra fees—just smarter diagnostics
- OE-Level Full System Car Diagnostic Scanner with 8 Live Data Graphs: The XTOOL D7 is a pro-grade diagnostic tool that gives you full access to all vehicle systems—just like Snap on scanners & the factory scan tools, it delivers deep, accurate diagnostics you can trust. Easily view live data streams, retrieve freeze frame, and run active tests to pinpoint issues fast. With the ability to graph up to 8 PIDs at once, you can spot performance trends and troubleshoot like a pro. Whether you're a mechanic or car owner, with the D7 auto scanner you can stay ahead of problems and keep your vehicle running at its best
- High-value Automotive Scanner Diagnostic Tool with 36+ Special Function, Module Resets, Relearns, Calibrations, Adaptations & Initializations: XTOOL D7 diagnostic tool packs 36+ common & advanced maintenance, skip the $150 fee for battery registration after replacement, throttle body relearn after cleaning, or TPMS resets post-rotation, Auto bleed after the pad changes, or Electronic Parking Brake. Need to reset the transmission after towing? Crank sensor relearn for GM/for Dodge? Done. D7 also covered advanced functions like Ad~blue Reset, VIN Write, and many more professional OBD2 scanner functions that we can't list here. Text us your VIN + what you need, we’ll check the compatibility
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API