INTERNAL DRIVE LUBRICATION
The Surface Drive unit has 4 internal grease fittings located within the frame housing.
One fitting is located on each of the two universal joints and also on both the upper
bearing housing supporting the prop shaft and on the sprocket shaft bearing housing
shown in the photo below.
After every 75-100 hours of use, lubricate the upper bearing housing and the
universal joint fittings shown below with 2-3 pumps from a grease gun.
The Sprocket Shaft Bearing
Housing shown contains a set of
Tapered Roller Bearings. This
Housing is sealed and grease
lubricated.
After every 75-100 hours of use,
remove the vent tube connected to
the barb fitting shown below and
pump grease into the grease fitting
until grease starts to exit the top of
the housing through the barb fitting.
Collect excess grease with a paper
towel and continue pumping grease
into the housing until clean grease
starts to expel through the barb
fitting. Replace the vent tube when
finished.