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NEWS | Dec. 10, 2019

M113A3 FOV: Gear Spur Replacement

Mechanics,

When doing annual services on the M113A3 FOV, including the MBT and OSV, be sure to replace the variable speed fan drive’s gear spur.
        
The gear spur, NSN 3020-01-241-9141, can wear out sooner than it should, possibly leading to engine fires.
        
This applies to both engine models, NSN 2815-01-412-2715 and NSN 2815-01-248-7644. It also applies whether the engine is equipped with the hydraulic speed fan drive, NSN 2930-01-320-0530, or the electronic variable speed fan drive, NSN 2930-01-644-5574.
 
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