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As part of the regular maintenance, keep the axle assembly properly
lubricated. This procedure is best performed by your MasterCraft dealer.
The fill plug in the hub nose must be removed so that 80- to 90-weight
motor oil can be added. “Never-seize compound” is applied to the fill
plug, which is re-installed and torqued to 7-ft-lbs. If at any time the oil in
the hub appears milky, the system must be serviced immediately.
Lug Nuts or Wheel Bolts
Loose lug nuts can
cause more than just an
annoying wheel wobble–
you could lose a wheel.
Before each trip check for
loose or missing lug nuts/
wheel bolts.
When tightening the
lug nuts, use the correct
sized-wrench. The wrong size
can round-off the lug nuts
and render them useless. If
you lose a lug nut, replace it
promptly. The correct size
varies with different models,
so you should verify the in-
formation with your
MasterCraft dealer.
Take special care to en-
sure that the replacement
lug nut is the correct type.
While the threads of the lug
nut may match, it may be a
size that does not hold the wheel securely against the hub, even when
fully tightened. Be certain a replacement lug nut is an exact match
for the original.
Use the following pattern to tighten lug nuts. On first torquing
pass: Bring up to 45-ft-lbs. On second pass: Bring up to 70-ft-
lbs. On third pass: Bring up to 90-ft-lbs.
MasterCraft Trailers • Page 16