Peterbilt 325 2017, Operator'S Manual, Page: 359 / 392

TIRES AND WHEEL
Wheel Mounting and
Fastening
After the vehicle travels about 50 to 100
miles (80 to 160 km), wheel mountings
seat in and will lose some initial torque.
Check hub/wheel mountings after this
initial period and retighten.
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 acci-
dent. Failure to comply may result
in death, personal injury, equipment
or property damage.
Wheel Cap Nut Torque
At the first scheduled lube interval,
have all wheel cap nuts torqued to
their specified value listed in Wheel
Cap Nut Torque on page 5-149. After
that, check wheel cap nuts at least
once a week. Contact an authorized
dealer for information on the proper
installation procedure for the wheels
on your truck. This is a job you may
not be able to do yourself. You need
the right torquing equipment to do it.
Wheel Cap Nut Torque
TORQUE FOR INNER & OUTER CAP NUTS & RIM CLAMP NUTS WHEEL & NUT
CONFIGURATION
STUD SIZE
Nm Lb-Ft
3/4-16 610-680 450-500 Steel or Aluminum Disc-Type
Wheel; Double Cap Nut
Mounting;
Standard 7/8 Radius Ball Seat
1-1/8-16 610-680 450-500
15/16-12 1,020-1,220 750-900
1-1/8-16 1,020-1,220 750-900
Heavy-Duty Steel Disc-Type
Wheel; Double Cap Nut
Mounting;
1-3/16 Radius Ball Seat:
1-15/16-12 1,020-1,220 750-900
(03/17) Y53-6060-1C1
5-149
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