KC-351

1/31/22, 1:13 PM
Article
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Mack Chassis - Granite Models (GU, GR)
- Revised Fan Ring Design; Engine Cooling Fan Ring
Cracked At Welds - Model Years 2016 To 2020
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Internal Content
Affected date ranges: 2 June 2014 (W1423) - 24 June 2019 (W1921)
A new fan ring design has been released to address the vibration. The
revised fan rings have been designed with a larger rubber seal that
contacts the fan shroud and is able to effectively dampen vibration of the
ring.
Part numbers for the new fan ring design can be found below:
Old Part Number New Part Number Description
22516648
23496866
Fan Ring for 710 Millimeter fan
22516651
23496867
Fan Ring for 750 Millimeter fan
Please refer to the illustrations below to verify the fan ring seal has been
installed correctly.
Correct Setting of the Fan Ring Seal
The seal should be outside of the shroud
; Live UI
https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD5?pyActivity=%40basec…
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1/31/22, 1:13 PM
Article
Correct - Fan Ring Seal sits on the outside of the shroud
; Live UI
https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD5?pyActivity=%40basec…
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1/31/22, 1:13 PM
Article
Incorrect - Fan Ring Seal is tucked INSIDE of the shroud causing it to look
short in length. Be sure to check all the way around the shroud for misset seal
; Live UI
https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD5?pyActivity=%40basec…
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1/31/22, 1:13 PM
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mack
fan shroud
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; Live UI
https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD5?pyActivity=%40basec…
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