# Service bulletin TS1033768

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10177689
- Published by NHTSA: 2020\-07\-31
- Manufacturer's number: TS1033768
- Manufacturer's date: 2018\-08\-13
- NHTSA component: SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Training Solution for Western Star Front Brake Squeal \- Burnishing Procedure. The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10177689-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10177689-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2010 to 2021 WESTERN STAR 4700
- 2010 to 2021 WESTERN STAR 4800
- 2010 to 2021 WESTERN STAR 4900
- 2010 to 2021 WESTERN STAR 5700
- 2010 to 2021 WESTERN STAR 6900

## Recalls for the same vehicles and component

- [2021013](/recalls/tc/2021013.md), 2021-01-20: Brakes
- [21V018000](/recalls/nhtsa/21V018000.md), 2021-01-20: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
- [2020086](/recalls/tc/2020086.md), 2020-03-03: Brakes
- [20V127000](/recalls/nhtsa/20V127000.md), 2020-03-03: SERVICE BRAKES, AIR:DISC:CALIPER
- [2019237](/recalls/tc/2019237.md), 2019-05-17: Brakes
- [2019227](/recalls/tc/2019227.md), 2019-05-15: Brakes
- [19V370000](/recalls/nhtsa/19V370000.md), 2019-05-14: SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
- [19V367000](/recalls/nhtsa/19V367000.md), 2019-05-14: SERVICE BRAKES, AIR:DISC
- [2018550](/recalls/tc/2018550.md), 2018-10-09: Brakes
- [18V703000](/recalls/nhtsa/18V703000.md), 2018-10-05: SERVICE BRAKES, AIR:DISC:CALIPER

## Other bulletins for the same vehicles and component

- [SF613](/bulletins/10202733.md), 2021-11-03, Service bulletin: SERVICE BRAKES, HYDRAULIC. ConMet Front Hub to Rotor Fasteners. On certain vehicles, the front rotor nuts may not be torqued to manufacturer specification. Loose components could cause damage to the ABS tone rings, the ABS sensors, and the anchor plate mounting fasteners.
- [TechTalk566647](/bulletins/10194818.md), 2021-06-02, Service bulletin: SERVICE BRAKES, AIR. Tech Talk Discussion 121\-8861\-005 3 Compartment air tank with one way internal check valve
- [WSTCAE165\-2018](/bulletins/10193753.md), 2021-05-18, Service bulletin: SERVICE BRAKES, AIR:SPIDER; SERVICE BRAKES, HYDRAULIC. Certain Stamped Spider Drum Brakes Replaced by Cast Spider Drum Brakes on Steer Axles
- [WSTCAE121\-2014](/bulletins/10193657.md), 2021-05-18, Service bulletin: SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR. AIR BRAKE RESERVOIRS \- NEW TRIPLE CHAMBER AIR TANK
- [sbw54065](/bulletins/10189108.md), 2021-03-15, Service bulletin: SERVICE BRAKES, HYDRAULIC. sbw54065 GHG17 Heavy Duty Engine Platform Vehicle Dash Oil Pressure Guage
- [SBW42\-014](/bulletins/10184656.md), 2020-12-22, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES; EQUIPMENT. Western Star Service Bulletin for Access to Front Brake Zerk Fittings. Certain vehicles with Detroit front axles and Meritor EX\-L front air disc brakes do not have access to the front brake zerk fittings for lubrication.
- [TechTalk7698](/bulletins/10180452.md), 2020-10-01, Service bulletin: EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC. Tech Talk discussion on dim brake lights.
- [TechTalk6001](/bulletins/10180167.md), 2020-09-30, Service bulletin: SERVICE BRAKES; POWER TRAIN:CLUTCH ASSEMBLY. Tech Talk discussion for 1 DT12 COUNTERSHAFT BRAKE
- [SBW42\-013](/bulletins/10177607.md), 2020-07-31, Service bulletin: SERVICE BRAKES, AIR:DRUM:SHOES/LININGS; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:SHOES/LININGS. Western Star Service Bulletin for Meritor Steer Axle Drum Brake Squeal. Some Western Star 5700 vehicles equipped with Meritor steer axle drum brakes with a front axle rating less than 13,300 lb \(6038 kg\) have experienced brake squealing noise when the service brakes are applied at lower speeds. NOTE: This is a nuisance noise issue and not a failure. The solution given in this service bulletin may fix this issue.
- [CAL\_WS\_42001](/bulletins/10166808.md), 2019-10-30, Service bulletin: SERVICE BRAKES, AIR; EQUIPMENT. Customer Advisory Letter for WABCO HP air dryer turbo cut\-off valve replacement.

JSON: [/v1/bulletins/10177689](/v1/bulletins/10177689)

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