PREVOST LE MIRAGE XLII BUS SHELLS Maintenance Manual Download

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Wheel Installation

Recommendations
for proper
installation of
wheels

4-1

NOTICE: Do not exceed
maximum wheel load.
Customer must compare
OEM vehicle load rating to
maximum wheel load rating.

Refer to tire manufacturer’s
recommendation for proper
tire pressure. Before mounting
the tire perform a wheel
fitment check to insure
proper clearance from any
obstructions.

For the same reason the best tires are run on the front axle, the best wheels also should be used

on the front axle.

Make sure all wheel cap nuts are properly torqued — check them often (see section 4-9, page 29).

If the wheel is loose, the holes will pound out (deform). If some cap nuts are tight and others
are loose, the wheel may develop cracks or studs may break. Dirt streaks radiating from stud holes
can indicate loose nuts (see Section 2, pages 5-17).

Be sure the end of the wheel wrench is smooth or cover the wheel mounting surface with a

protective shield prior to tightening the cap nuts. The wrench end will mar the wheel around
the cap nuts if it is not smooth.

. Keep all component contact surfaces smooth and clean. Dirt or projections on mounting surfaces

may lead to loose wheels. Remove all projections resulting from burrs, nicks, etc. Be sure that
loose dirt does not fall onto mounting surface during assembly.

Check for and replace bent, broken, cracked or damaged studs. When replacing broken studs,

always replace the studs on each side of the broken stud. If two or more studs are broken,
replace all the studs for that wheel position. Check with the stud manufacturer for regular
maintenance and stud replacement practices. All wheel fastener hardware should be grade 8 or metric
conversion 10.9. Follow the hardware manufacturer’s recommendations when replacing studs.

Do not introduce any foreign objects such as spacers or high hats into the contact surface areas

of the mounting system unless approved by Alcoa. Do not paint Alcoa forged aluminum wheels.

Additional care should be used when mounting Alcoa Dura-Bright

surface treated wheels since

minor nicks and scratches cannot be polished out (see section 5-8, page 37-38 for specific
cautions, care and maintenance procedures).

DiscMates are a protection gasket designed to be placed between the wheels and also

the brake drum/wheel contact surfaces (see sections 4-5, page 24; 4-6, page 25; 4-7, page 26
and 4-10, page 31). DiscMates are recommended to be replaced when the tire/wheel assemblies
are removed and reinstalled.

WARNING

Wheels that are not properly installed or maintained may not

work properly.

Failure to follow proper wheel installation or maintenance practices may
result in injury or death.

Follow the proper wheel installation and maintenance practices as contained
in this Alcoa Wheel Service Manual. For training on proper installation and
maintenance, available free of charge from Alcoa, or for the most recent
updates, contact Alcoa Wheel and Forged Products at 1-800-242-9898
option 1 or on the web at www.alcoawheels.com.

PREVOST LE MIRAGE XLII BUS SHELLS, Maintenance Manual

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