Chevrolet 2003 Astro Owner's Manual page 296

9. Remove any rust or dirt from the wheel bolts,
mounting surfaces and spare wheel.
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after
a
time. The wheel could
come
off
and cause an accident. When you
change a wheel, remove any rust or dirt from
the places where the wheel attaches to the
vehicle. In an emergency, you can use a cloth
or a paper towel to do this; but be sure to use
a scraper or wire brush later, if you need to,
to get all the rust or dirt off.
10. Put on the compact spare tire. Put the nuts on by
hand. Make sure the cone-shaped end is toward
the wheel. Tighten each nut by hand until the wheel
is held against the hub. If a nut can't be turned
by hand, use the extension and see your dealer as
soon as possible.
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel
could fall off, causing a serious accident.
-
11. Lower the vehicle by turning the ratchet
counterclockwise. Lower the jack completely.
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