Regional Haul Model Operator's Manual - Peterbilt Motors Company

TIRES AND WHEELS
WARNING! Never use oil or grease on studs
or nuts; improper torque readings will result,
which could cause improper wheel clamping
and could lead to a wheel failure resulting in
an accident causing death or personal injury.
Wheel Bearing Adjustment
For safe, reliable operation and adequate service life,
your wheel bearings must be checked and adjusted properly
at the recommended intervals. See “Recommended
Maintenance Intervals,” Page 150 and Table 2, “Maintenance
Schedule,” Page 152. The person best equipped to
do this is your Authorized Service Center's mechanic.
PREVENTIVE MAINTENANCE
WARNING! Tighten wheel cap nuts properly. If
they are not tightened properly, wheel nuts
could eventually cause the wheel to become
loose, to fail, and/or to come off while the
vehicle is moving, possibly causing loss of
control if the vehicle and death, serious personal
injury or damage to the vehicle.
Proper Torque and Sequence
Proper wheel torque can best be obtained on level
ground. Install lug nuts and finger-tighten in the numerical
sequence as shown below, see “Crisscross Tightening
Sequence” on page 207. This procedure will ensure that
the wheel is drawn evenly against the hub. Torque each
nut to the torque value listed in Table 7 on page 205.
– 204 – Y53-6033 Regional Haul (R05/10)