freightliner Argosy COE Maintenance Manual page 94

Wheels and Tires
40–01 Wheel Nut and Rim Nut
Check
IMPORTANT: After installing a wheel, the wheel
or rim nut torque must be rechecked after 50 to
100 miles (80 to 160 km) of operation.
See Table 1 for wheel nut torque specifications, and
see Fig. 1 for the wheel nut tightening sequence.
CAUTION
Insufficient wheel nut (rim nut) torque can cause
wheel shimmy, resulting in wheel damage, stud
Description
8-Stud Disc Wheel With Two-Piece Flanged Locknuts (with lubricated threads)
Front and Rear Wheel Nut
10-Stud Disc Wheel With Two-Piece Flanged Nuts (with lubricated threads)
Front and Rear Wheel Nut
Front Wheel Nut
Rear Wheel Inner Nut
Rear Wheel Outer Nut
Wheel Stud Retainer Nut
Front Wheel Nut, 5- and 6-Spoke
Rear Wheel Nut, 5- and 6-Spoke With
Non-Corrugated Channel Spacer
Rear Wheel Nut, 5- and 6-Spoke With
Corrugated Channel Spacer
*
On front axles with over 12,000 lbs (5448 kg) capacity, tighten the wheel nuts 240 to 265 lbf·ft (325 to 359 N·m). Gunite part number W–854 nut with a
phosphate-and-oil coating must be used.
Century Class Trucks Maintenance Manual, January 1996
Nut Size
—
M22 x 1.5
10-Stud Disc Wheel With Inner and Outer Locknuts (with dry threads)
1-1/8–16
3/4–16
1-1/8–16
3/4–16
Spoke Wheel Rim Nuts (with dry threads)
3/4–10
3/4–10
3/4–10
Table 1, Wheel Fastener Torque
breakage, and extreme tire tread wear. Excessive
wheel nut torque can break studs, damage
threads, and crack discs in the stud hole area.
Use the recommended torque values, and follow
the tightening sequence shown in
When checking wheel nuts on a dual disc assembly,
remove one outer nut at a time, torque the inner nut,
then reinstall and torque the outer nut. Repeat this
procedure for all wheel nuts, using the tightening se-
quence shown in Fig.
Wheel Manufacturer
All
Budd (Uni–Mount 10)
Alcoa
All Others
Alcoa
All Others
Alcoa
All Others
All
Gunite
Gunite
Gunite
Fig. 1.
1.
Torque: lbf·ft (N·m)
450–500 (610–680)
390–440 (530–600)
400–500 (540–680)
450–500 (610–680)
400–500 (540–680)
450–500 (610–680)
400–500 (540–680)
450–500 (610–680)
175–200 (235–270)
*
200–225 (271–305)
200–225 (271–305)
240–260 (325–350)
40
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