Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont'd).
ITEM TO BE
NOT FULLY MISSION
If vehicle has been operating, use
300000 and extreme care to avoid being burned
when removing geared fan drive fill
plug. Use rags or heavy gloves to protect
a. Ensure fluid is even with bottom of
fill plug hole.
· The coupler shaft has a CV joint at the
geared fan drive end and one at the
engine crankshaft end.
· Each CV joint has two grease fittings.
Only one fitting needs to be lubricated.
Second fitting is used to give an
optional location depending on the
position of the shaft when engine is
b. Lubricate coupler shaft CV joints.