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Lubrication & Maintenance
Hub
Check and pack wheel hub bearings seasonally with an EP2 Grease.
The inside of hub is filled about 75% with grease, leaving an air space to allow for expansion from heat.
On all assemblies we tighten the nut with a wrench until the hub doesn't rotate freely by one hand (while
tightening turn the hub the opposite direction of the nut), back the nut off 1/2 round and retighten the nut
to the next closest slot. NOTE - The washer must be lubricated prior to assembly. If the nut is loose at
this next slot, remove the nut and try using another nut. The hub should rotate with one hand, the radial
momentum will keep the hub rotating for a partial round (1/8-1/4 turn) after letting go with the hand
depending on speed of rotation. This should give the desired preload. Ensure that the wrench does not
drag against the hub while tightening.
Check preload after 5-10 hours use.
Remove and check all bearings annually (assembly and preload instructions above).
This applies to all assemblies prior to having wheels mounted on them.
Hitch
The grease fittings are located on each side of the Bull Pull hitch. These should be greased every day
under normal conditions.
Grease Fitting
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