April 6, 2022 NHTSA CAMPAIGN NUMBER: 22V222000
Alternator Belt May Overheat Seized Bearing
An overheated alternator bearing can increase the risk of a fire.
NHTSA Campaign Number: 22V222000
Manufacturer Volvo Bus Corporation
Components ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM
Potential Number of Units Affected 47
Summary
Volvo Bus Corporation (Volvo Bus) is recalling certain 2020 Volvo 9700 DOT vehicles. In the event of the alternator front bearing seizing, the alternator belt may continue to operate, causing the bearing to overheat.
Remedy
Volvo Bus will replace the alternator belt, free of charge. Owner notification letters are expected to be mailed June 3, 2022. Owners may contact Volvo Bus customer service at 1-866-870-2046.
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.
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| VOLVO BUS | 9700 | 2020 |
3 Associated Documents
Recall Acknowledgement
RCAK-22V222-6536.pdf 645.407KB
RCAK-22V222-6536
Defect Notice 573 Report
RCLRPT-22V222-6814.PDF 213.821KB
RCLRPT-22V222-6814
Recall 573 Report-Amendment 1-04/12/2022
RCLRPT-22V222-9414.PDF 213.982KB
RCLRPT-22V222-9414
Latest Recalls Documents
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V222&docType=RCL
1 Associated Investigation
Alternator Front Bearing Failure
NHTSA ID: PE21011
Dated opened: May 13, 2021
NHTSA’s Office of Defects Investigation (ODI) is opening a Preliminary Evaluation after receiving a tip from a fleet safety manager concerning alternator front bearing failures that cause elevated temperatures within the engine compartment, resulting in the fire suppression system (FSS) activating, immediately shutting the engine down, and rendering the bus inoperable.
Review of Early Warning Reporting Data identified 9 field reports for Model Year (MY)2015 through MY2019 H3 and X3 Prevost buses, describing alternator failures in any of 3 alternators equipped on the bus. In some cases, a minor fire occurred damaging nearby electrical harnesses.
An immediate shut down of the bus can increase the risk of a crash or injury of passengers when transferring to another bus.
ODI is opening this investigation to evaluate the cause, consequence, scope and frequency of the alleged defect in the subject Prevost buses.
- Its fiber loaded rubber stock puts more flexibility along the length of the belt, yet gives the belt greater lateral stability in the pulley
- Has thermally active tensile cords that provide maintenance free performance when properly installed and tensioned
- Manufactured with form ground to ensure precise top width and sidewall dimensional control for proper fit in the pulley as well as a smoother, quieter running belt
- Its fiber loaded rubber stock puts more flexibility along the length of the belt, yet gives the belt greater lateral stability in the pulley
- Has thermally active tensile cords that provide maintenance free performance when properly installed and tensioned
- Manufactured with form ground to ensure precise top width and sidewall dimensional control for proper fit in the pulley as well as a smoother, quieter running belt
- Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound
- Proprietary rubber formulation for quiet operation
- Synthetic tension members with balanced twist cord ensures neutral tracking when running
- AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles
- Length: 43.5 inch or 1105 mm; Alternate Part Number 6PK1105
- Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound
- Proprietary rubber formulation for quiet operation
- Synthetic tension members with balanced twist cord ensures neutral tracking when running
- AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles
- Length: 38 inch or 965 mm; Alternate Part Number 6PK0965
- EPDM rubber constructions resist cracking on the rib surface
- Package Dimensions: 41.5 H x 3.7 L x 9.8 W (centimetres)
- Package Weight: 0.081 kilograms
- Country of Origin : China
- 4 ribs x 880 mm or 4 ribs x 34.6 inch
- strong tensile cords carry high horsepower loads without stretching
- award winning oem supplier with over 100 major quality awards from manufacturers such as gm, toyota, honda, vw, nissan and many others
- ground rubber ribs are compounded from high strength synthetic rubber for wear resistance and long life
- bando has one line of belts for both oem applications and the aftermarket. the same belt the manufacturer specifies and installs is the same belt sold in the aftermarket
- Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound
- Proprietary rubber formulation for quiet operation
- Synthetic tension members with balanced twist cord ensures neutral tracking when running
- AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles
- Length: 48 inch or 1219 mm; Alternate Part Number 6PK1219
- Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound
- Proprietary rubber formulation for quiet operation
- Synthetic tension members with balanced twist cord ensures neutral tracking when running
- AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles
- Length: 32 inch or 813 mm; Alternate Part Number 4PK0813
- EPDM rubber constructions resist cracking on the rib surface
- Package Dimensions: 1.524 H x 35.56 L x 8.636 W (centimetres)
- Package Weight: 0.15 pounds
- Country of Origin : China
- Meets or Exceeds OEM Specifications; Long-life EPDM Rubber Compound
- Proprietary rubber formulation for quiet operation
- Synthetic tension members with balanced twist cord ensures neutral tracking when running
- AutoCare Association recommends inspecting belts at 60,000 miles and replacing at 90,000 miles
- Length: 45 inch or 1143 mm; Alternate Part Number 6PK1143
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