freightliner M2 Plus Maintenance Manual page 44

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10/05/2016
Fig. 1, Checking for Air Leaks (Horton DriveMaster)
11.1 Turn the fan in both directions and feel
for worn hub bearings.
11.2 If possible, remove the drive belt and
check for worn sheave bearings by
turning the sheave in both directions.
11.3 If either the hub or sheave bearings are
worn, replace them, using a Horton
DriveMaster Super Kit.
For instructions and kit part number, see
Group 20 of the Business Class M2 Plus
Workshop Manual.
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Engine Cooling/Radiator
Business Class M2 Plus Maintenance Manual, 02/10/2023