Axles; Wheels And Hubs - Axis A20 Owner's Manual

The trailer is equipped with the VAULT bearing protector. The VAULT uses only Hybrid Oil™
lubricant, which combines the benefits of oil and grease. The VAULT protects the
wheel bearings in a sealed, pressurized chamber that is unaffected by outside
elements. For optimal performance, only UFP's Hybrid Oil Lubricant should be
used in this system.
The system has a number of unique features not found on conventional trailer
axles. Every possible leak point on the front and rear of the hub is sealed. The
slight pressure inside the hub is needed to keep water out of the hub chamber

axles

when the hub is submerged underwater during loading and unloading.
Inspection or replenishment of the lubricant is not required as part of the rou-
tine maintenance.
Adding or changing the lubricant in the VAULT system is neither necessary nor
recommended during the first five years of service. After that time, the mainte-
A slight amount of oil seepage at the rear seal is normal and necessary to lubricate the wiper
lip of the seal for long life and sealing contaminants out. If excessive leakage is occurring, how-
ever, contact an authorized Axis trailer dealer.
Because the wheels and hubs
will be submerged in water at
wheels
times, they require more at-
tention than those found on a
and
tow or regular vehicle. Wheels
hubs
should be regularly washed
with mild soap or detergent to
retain the finish and remove
any corrosive elements. Never
use harsh detergent or scrub
brushes that can damage the
appearance. If the boat is stored in an area that
experiences snow, Axis highly recommends
periodically checking and cleaning the wheels
during the winter. Salt and chemical treat-
ments used to remove snow and ice from roads
and parking lots can settle on the wheels and
cause damage to the finish. Such damage is not
covered under warranty.
nance requirements should be undertaken only by an
authorized Axis dealer and only the lubricant speci-
fied above should be used.
If the bearings need to be adjusted or replaced, the
work should be done only by an authorized Axis deal-
er. Failure to contact Axis for pre-approval during the
warranty period will void the warranty.
The wheel bearings have been precisely torque-set
at the factory. To assure the bearings are in good
working order, check the bearing adjustment at least
once a year by following this procedure: Jack up on
one side of the trailer. (Be certain to use jack stands
and check the trailer wheels to keep the trailer from
moving during the inspection.) Grip the edge of the
tire and see if it can be rocked or moved. If the outer
edge of the tire moves more than 1/8", the bearings
may need to be readjusted.
Axis
Owners
Manual
2019
Page 122