RECALL NO: M0360 – Conventional Air Compressor Charge Pipe Torque – 2022 Hino NJ7A

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March 4, 2022 NHTSA CAMPAIGN NUMBER: 22V128000

Low Air Pressure May Apply Parking Brake

Low air pressure may cause the parking brake to apply automatically, increasing the risk of a crash.

 

NHTSA Campaign Number: 22V128

Manufacturer Hino Motors Sales U.S.A., Inc.

Components SERVICE BRAKES, AIR

Potential Number of Units Affected 141

 

Summary

Hino Motors Sales U.S.A., Inc. (Hino) is recalling certain 2022 NJ7A vehicles. The charge pipe flare nut attached to the air compressor may not have been tightened properly, resulting in low air pressure in the system.

 

Remedy

Dealers will tighten the charge pipe flare nut, free of charge. Owner notification letters were mailed on March 28, 2022. Owners may contact Hino’s customer service at 1-248-699-9390. Hino’s number for this recall is M0360.

 

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.

 


SAFETY RECALL

CONVENTIONAL AIR COMPRESSOR CHARGE PIPE TORQUE

RECALL NO: M0360
DATE: 3-4-2022
REFERENCE NO: QA-220304-N1

 

SUBJECT VEHICLES: Certain 22MY Conventional L-Series trucks equipped with a Cummins B6.7 engine.

Note: Refer to the appropriate Vehicle Identification Number in the warranty system to determine vehicle eligibility.

 

OVERVIEW:

The charge pipe flare nut at the air compressor may not have been torqued to manufacturer specification. This procedure will document proper torque value application to the air compressor charge pipe flare nut, and leak check confirmation.

 

NEW VEHICLES IN DEALERSHIP INVENTORY As required by Federal law (49 Code of Federal Regulations §577.13), dealerships are not to deliver any new vehicles in their inventory that are involved in a Safety Recall unless the vehicle has been remedied. Refer to the appropriate Vehicle Identification Number (VIN) list to determine vehicle eligibility.

 

BEFORE YOU BEGIN:

  • Read and understand all instructions and procedures before you begin the work.
  • Read and follow all NOTICES and WARNINGS set forth in this publication. These alerts help to avoid damage to components, serious personal injury, or both.
  • Park the vehicle on a flat, level and solid surface.
  • Apply the parking brake firmly and confirm parking brake activation.
  • Turn off the engine and remove the key from the ignition switch.
  • Always wear safety glasses or goggles to protect your eyes.
  • Place wheel chocks in front of and behind all the wheels to prevent the vehicle from moving.

 

VEHICLE PREPARATION:

  1. Park the vehicle on a level and solid surface. Confirm the engine is stopped, the starter switch is in the off (LOCK) position, and the key is removed.
  2. Apply the parking brake. Chock all of the wheels.

 

Repair Procedure:

  1. Release the hood latches on the left and right side of the vehicle.
  2. Fully raise the hood.
  3. Locate the flare nut fitting on the left side of the engine that attaches the air compressor charge pipe to the air compressor.
  4. Using a 30mm crows foot wrench, tighten the flare nut to the specified torque.

Specified Torque: 65 lb-ft (88Nm)

  1. Start the vehicle and allow the engine to run until both air tanks reach greater than 120psi and air compressor governor cut-off is achieved. Turn the ignition switch to the off (LOCK) position and remove the key.

WARNING: Failure to turn the engine off could result in serious personal injury.

  1. Spray a soapy water mixture on the air compressor charge pipe flare nut to confirm no leakage is present.

WARNING: If leakage is detected, reconfirm proper fitting torque was applied in step 4. Do not release the vehicle to the customer if leakage is present.

  1. Lower the hood fully.
  2. Close the left and right hood latches.

Proceed to “Final Inspection”.

 

FINAL INSPECTION:

  1. To complete this procedure review and confirm the following:
  • The air compressor charge pipe has been tightened to the specified torque
  • The air compressor charge pipe has been checked for leakage
  • The hood has been lowered and both left and right hood latches are closed

 


Chronology :

November, 2021
During a shipping quality audit a loose charge pipe flare nut was discovered on a truck that had been produced on October 14, 2021. This finding initiated an investigation of the assembly process and inspection method.

During the investigation by a cross-functional team, it was discovered that this issue had been previously identified during the normal QC inspection process on one truck. Accordingly, a countermeasure was implemented on October 20, 2021 to prevent outflow. Based on these data, a shipping suspension was issued to contain trucks manufactured between September 3, 2021 and October 20, 2021 for audit. The audit of the suspect inventory revealed one additional occurrence. Three total occurrences were identified.

December, 2021~ February 2022
Field quality team identified 141 trucks that were built within the identified population range which were previously shipped to dealers and customers. Hino completed additional investigation thereafter and determined that if a low pressure condition results, the parking brake may automatically apply if the driver ignores the air indicator gauges, the illuminated warning light and audible alarm.

February 25 2022
Based on the investigation above, Hino determined to perform a safety recall to confirm that the proper torque was applied to the charge pipe flare nut of all subject vehicles.

As of February 24, 2022, Hino is not aware of any reports of accidents or similar cases relevant to this failure in warranty data or from the field.

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
HINO NJ7A 2022

 


9 Associated Documents

Recall Acknowledgement

RCAK-22V128-2469.pdf 645.985KB

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Defect Notice 573 Report

RCLRPT-22V128-2403.PDF 214.719KB

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Recall 573 Report- 3/11/2022

RCLRPT-22V128-7477.PDF 214.767KB

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Remedy Instructions and TSB

RCRIT-22V128-4515.pdf 770.534KB

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Owner Notification Letter(Part 577)

RCONL-22V128-8026.pdf 162.819KB

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Recall Quarterly Report #1, 2022-1

RCLQRT-22V128-9118.PDF 211.144KB

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Recall Quarterly Report #2, 2022-2

RCLQRT-22V128-0292.PDF 211.237KB

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Recall Quarterly Report #3, 2022-3

RCLQRT-22V128-1365.PDF 211.318KB

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Recall Quarterly Report #4, 2022-4

RCLQRT-22V128-0877.PDF 211.432KB

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Latest Recalls Documents

For the Latest and Most Recent Recalls Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V128&docType=RCL

 


 

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