2016 OWNERS MANUAL / 0389
• When the grease appears to be the new clean grease, remove the
grease gun.
• Replace the Vortex grease cap. With the threaded cap, turn in a
clockwise rotation until the o-ring on the cap is in contact with
the hub surface. Turn an additional one-quarter (1/4) turn to seal
the Vortex cap to the hub. (Similar to installing an oil filter in an
automobile.) On the press-in style cap, tap it on until fully seated.
Be careful to avoid damaging the cap while re-installing.
If the bearings need to be adjusted or replaced, the work should be
done only by an authorized MasterCraft dealer. Failure to contact
MasterCraft for preapproval 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
one side of the trailer. (Be certain to use jack stands and use chocks
on each of 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 a small
amount, the bearings may need to be readjusted.
A slight amount of oil seepage at the rear seal is normal and nec-
essary to lubricate the wiper lip of the seal for long life and sealing
contaminants out. If excessive leakage is occurring, however, con-
tact an authorized MasterCraft Dealer for assistance.
Wheels
Because they are often exposed to water, trailer wheels and tires re-
quire more attention than the wheels on a family vehicle. The three
major items to check are lug nuts, lubrication and tire pressure.
Maintain the proper torque on the lug nuts attached to the wheel
bolts. Failure to do so may result in serious injury or death and/or
property damage. An authorized MasterCraft dealer can provide
the proper torque specifications (measured in foot-pounds).
Keep the wheel bearings lubricated. Inspect the wheel bearings
for proper lubrication before each use. Failure to do so may cause
wheel failure and possible wheel loss, which may result in serious
injury or death and/ or property damage.
Aluminum wheels also require attention to routine maintenance,
particularly in keeping them clean. Failure to do so may result in
damage that is not covered by warranty.
The trailer and wheels should be washed weekly during boating
season, and after every use if the trailer has been submerged in
salt or brackish water. Use a soft brush, mild detergent and/or mild
degreaser. A quality spray-on wheel cleaner may also be used.
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