MasterCraft Trailer User Manual download pdf (Page 18)

Lubrication

Currently, trailers feature oil-bath bearings. Earlier models were

equipped with easy lubricating hubs. However, water invades and seeps

through the smallest opening. When a warm hub is submerged in

cold water, any air inside the hub will contact and draw water through

the best of seals.

Trailers equipped with the Bearing Buddy II with Auto Check

simplify the process of keeping watch for proper lubrication. If the

blue ring is fully extended (about 1/4-inch extruded), you have adequate

lubrication. As the grease dissipates, the ring will move back into the

shell. When the blue ring is flush with the Bearing Buddy shell, it is

time to re-lubricate.

Your best protection against wheel bearing damage from the wa-

ter is to always keep your wheel assembly properly lubricated. Periodi-

cally, view the site window located on the axle hub and determine whether

the lubricant appears milky. This would indicate water intrusion and the

lubricant should be replaced. Also check the seals for damage. When on

a trip, make it a habit to check the wheel hubs every time you stop for

gas or refreshments. If the hub feels abnormally hot, the bearings and

brakes should be inspected before continuing your trip.

Wheel Bearings

and Braking System

Wheel bearings and the braking sys-

tem on the trailer should be inspected

annually. If the bearings or race show

signs of scoring, they should be replaced,

as well as any worn brake parts. Your

MasterCraft dealer should perform this

inspection and repair.

MasterCraft Trailers • Page 17

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MasterCraft Trailer User Manual Page 18