# Service bulletin DOC\-1033768

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: 10151530
- Published by NHTSA: 2018\-12\-10
- Manufacturer's number: DOC\-1033768
- Manufacturer's date: 2018\-08\-13
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

TS 1033768: Western Star Front Brake Squeal \- Burnishing Procedure

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151530-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151530-0001.pdf)

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

## Components

Brakes

## Vehicles listed

- 2010 to 2019 WESTERN STAR 4700
- 2010 to 2019 WESTERN STAR 4800
- 2010 to 2019 WESTERN STAR 4900
- 2010 to 2019 WESTERN STAR 5700

## Recalls for the same vehicles and component

- [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
- [2018285](/recalls/tc/2018285.md), 2018-05-30: Brakes
- [2018283](/recalls/tc/2018283.md), 2018-05-29: Brakes

## Other bulletins for the same vehicles and component

- [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.
- [TechTalk6001](/bulletins/10180167.md), 2020-09-30, Service bulletin: SERVICE BRAKES; POWER TRAIN:CLUTCH ASSEMBLY. Tech Talk discussion for 1 DT12 COUNTERSHAFT BRAKE
- [TS1033768](/bulletins/10177689.md), 2020-07-31, Service bulletin: SERVICE BRAKES, HYDRAULIC. 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.
- [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.
- [SS1034531](/bulletins/10166807.md), 2019-10-30, Service bulletin: SERVICE BRAKES, AIR; EQUIPMENT. Service Solution for WABCO HP air dryer turbo cut\-off valve replacement.

JSON: [/v1/bulletins/10151530](/v1/bulletins/10151530)

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