Remove the hub bearings on the front and rear wheel
Wash the bearings with a high flash-point solvent, dry
them (do not spin them while they are dry), and oil them.
Spin each bearings by hand to check its condition.
If it is noisy, does not spin smoothly, or has any rough
spots, it must be replaced.
If the same bearing is to be used again, re-wash it with a
high flash-point solvent, and dry it.
Pack each bearings with good quality bearing grease [A]
before installation. Turn each bearing around by hand
a few times to make sure the grease is distributed uni-
formly inside the bearing, and wipe the old grease out of
the bearing housings on the wheel hub before bearing in-
Install the bearings.