Malibu Boats Wakesetter 20VTX 2018, Руководство пользователя, Страница: 141 / 200

rear of the hub is sealed. The slight pressure inside the hub is needed to keep water
out of the hub chamber when the hub is submerged underwater during loading and
unloading.
Inspection or replenishment of the lubricant is not required as part of the
routine 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
maintenance requirements should be undertaken only by an authorized Malibu
dealer and only the lubricant specified above should be used.
If the bearings need to be adjusted or replaced, the work should be done only by
an authorized Malibu dealer. Failure to contact Malibu 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 chock 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.
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, however, contact an authorized Malibu-Axis trailer dealer.
WHEELS AND HUBS
Because the wheels and hubs will be submerged in water at times, they require
more attention than those found on a tow or regular vehicle. Wheels 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.
LUG NUTS
Prior to each outing, check that the lug nuts have retained the correct torque. It
is critical to use the correctly sized wrench when tightening or loosening lug nuts.
The wrong size can cause the lug nuts to become rounded off, which can make them
impossible to use. Never tow a trailer with a missing lug nut or lug nuts. Having the
complete number of lug nuts, properly torqued, is critical for both long -term use
of the product and for road safety. Even one fewer lug nut can apply stress to the
remaining lug nuts and the hub, which could result in failure.
Do not replace lug nuts, even missing ones, with lug nuts other than those available through an authorized Malibu dealer. The
lug nut seat angle must match the wheel seat angle. The assembly uses a specified lug nut selected for the kind of use the trailer
will need. Even if the threads match, unapproved lug nuts may not hold the wheel securely enough. Lug nuts on each wheel should
always match.
The torque applied when securing the lug nuts is also extremely important. If it is under-tightened, a lug nut can work loose under
operation and come off. An over-tightened lug nut can strip the threads and also come off.
Improper torque for lug nuts can cause the lug nut to disengage. Lug nuts must also be correctly sized and specified
for each trailer wheel. Failure to properly install and maintain the lug nuts
could result in the trailer wheel coming off during operation. Such failure can
result in serious injury or death, as well as property damage.
Follow these instructions for ensuring proper installation and torque for the lug nuts:
• Use a torque wrench. No other wrenches or similar tools are appropriate for use, except in an
emergency.
• Keep a record of readings. If a lug nut or nuts routinely loses torque, it is symptomatic of a bigger
problem that should be brought to the attention of your authorized Malibu dealer to remedy.
• Use the following pattern to tighten lug nuts: On the first round, tighten to 45 ft.-lbs. Tighten a
second time to 70 ft.-lbs. Tighten again to 90 ft.-lbs. And on the final time, tighten to 120 ft.-lbs.
Do this in a “star” pattern; do not simply go around clockwise or counter-clockwise. The cross
effort will ensure a correct reading.
Malibu Owners Manual • 2018 • Trailers • Page 5-8