Toyota Coaster 2015 Owner's Manual page 122

When reinstalling the nuts;
Left side of the vehicle: Use the nuts
D
marked "L".
Right side of the vehicle: Use the nuts
marked "R".
Set the nuts with the tapered end in-
D
side.
Tighten the nuts as much as you can by
hand. Press back on the tire and see if
you can tighten them more.
Before putting on wheels, remove any cor-
rosion on the mounting surfaces with a
wire brush or such. Installation of wheels
without good metal−to−metal contact at the
mounting surface can cause wheel nuts to
loosen and eventually cause a wheel to
come off while driving.
Apply small amount of engine oil to the
grooves of the stop bolts and wheel nuts.
Be careful that engine oil is not applied
to any other part of the bolt and nut, as
it may cause the wrench to slip off when
you tighten the nuts.
CAUTION
To avoid a serious accident, apply en-
gine oil to the grooves of the stop
bolts and the wheels nuts. No matter
how much you try to tighten them,
the nuts may not be securely tight-
ened and the wheels may fall off.
115