2020-2021 Peterbilt 520 21PBK Quick Release Valve Missing

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September 16, 2021 NHTSA CAMPAIGN NUMBER: 21V720000

Quick Release Valve Missing/FMVSS 121

A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.

 

NHTSA Campaign Number: 21V720

Manufacturer PACCAR Incorporated

Components SERVICE BRAKES, AIR

Potential Number of Units Affected 15

 

Summary

PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The quick release valve on the rear brake signal hose may be missing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, “Air Brake Systems.”

 

Remedy

Dealers will inspect the vehicles for a missing quick release valve, and install one if necessary, free of charge. Owner notification letters were mailed on October 7, 2021. Owners may contact PACCAR’s customer service at 1-940-591-4220 (Peterbilt). PACCAR’s number for this recall is 21PBK.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 


21PBK – Model 520 Dual Steer Quick Release – NHTSA ID: 21V720

 

Number

21PBK

 

Supplier

Peterbilt

 

Description

Model 520 Dual Steer Quick Release – NHTSA ID: 21V720

 

Date

9/23/2021

 

What’s New

Safety Recall – Certain Model 520 trucks may have been built without a quick release (QR) valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Vehicles will be inspected and, if necessary, a QR valve will be installed.

 

Introduction

Peterbilt has decided that certain Model 520 trucks built from 11/04/2019 through 3/30/2021 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations.

 

Resolution

Safety Recall

 

Service all affected chassis that enter your dealership, even if the customer has no issue with the chassis.

 

1. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on the

2. If you are not using Service Management to start repair orders, review SIR for “Complete” or “In Process” next to the “21PBK” campaign code prior to performing this

3. Follow the procedures below to inspect the brake plumbing and, if necessary, install the quick release

 

Federal Law

It is a violation of Federal law for a dealer to sell or lease new vehicles covered by this recall until the defect or noncompliance has been corrected.

 

Warranty

There is no time or mileage limit for this recall. Peterbilt will pay for parts at dealer net plus applicable mark up and labor:

  • 3 hours to inspect the brake plumbing to see if the quick release valve is installed. File Quick Claim 21PBKA.
    • This labor is for inspection only. It is not applicable for trucks that require the quick release valve installation.
  • 4 hours to install the quick release valve and complete the necessary plumbing for Dual Seated Drive configuration. File Quick Claim 21PBKB. This includes the inspection of the brake plumbing for the presence of the quick release valve.
  • 4 hours to install the quick release valve and complete the necessary plumbing for Right Hand Stand-Up configuration. File Quick Claim 21PBKC. This includes the inspection of the brake plumbing for the presence of the quick release valve.
  • File an additional claim for extraordinary circumstances, referencing A quick claim for standard labor must be filed first.

 

 

Procedure

1. Inspect the truck to see if the Quick Release (QR) valve is installed. If not installed as shown below, tilt the cab forward for access and bolt the QR valve to the washer bottle housing.

2. Using the images below, determine the correct plumbing for the QR valve and locate the primary delivery hose from the foot valve that will be routed to the QR

3. Wrap the threads of the fittings with Teflon tape and install into the QR valve as shown for the appropriate steering configuration

4. Remove the primary delivery hose from the foot valve, trim the excess if necessary and install in the outlet port of the QR

5. Cut a new section of hose to install from the QR valve inlet back to the foot

6. Avoid kinking the hoses and secure the hose bundle with cable ties.

 

Parts

Parts are available through PACCAR Parts.

 

DUAL SEATED DRIVE CONFIGURATION 

Quantity Part Number Description
288251BXW Quick Release Valve
2 HWC01097 Hex Bolt
2 HWC03128 Flat Washer
G38-1021-0608 90 Degree Male Fitting
G38-1023-0608 Straight Male Fitting
AP2335 3/8 IN Plug
1 foot Source Locally #8 Orange or Black Nylon Brake Hose – 1 foot
As Needed Source Locally Teflon Tape
As Needed Source Locally Cable Ties

 

RH STAND-UP CONFIGURATION 

Quantity Part Number Description
288251BXW Quick Release Valve
2 HWC01097 Hex Bolt
2 HWC03128 Flat Washer
2 G38-1023-0608 Straight Male Fitting
AP2335 3/8 IN Plug
1 foot Source Locally #8 Orange or Black Nylon Brake Hose – 1 foot
As Needed Source Locally Teflon Tape
As Needed Source Locally Cable Ties

 


2 Affected Products

Vehicle

MAKE MODEL YEAR
PETERBILT 520 2020-2021

 


8 Associated Documents

Recall Acknowledgement

RCAK-21V720-8932.pdf 646.17KB

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Noncompliance Notice 573 Report

RCLRPT-21V720-4896.PDF 214.273KB

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Recall Quarterly Report #1, 2021-4

RCLQRT-21V720-0829.PDF 211.135KB

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Recall 573 Report: November 23, 2021

RCLRPT-21V720-5673.PDF 214.406KB

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Recall 573 Report: November 23, 2021

RCLRPT-21V720-3194.PDF 214.406KB

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Safety Bulletin

RCSB-21V720-5081.pdf 1069.359KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-21V720-4839.pdf 206.414KB

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Recall Quarterly Report #2, 2022-1

RCLQRT-21V720-3696.PDF 211.237KB

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Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V720&docType=RCL

 


 

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