84
Maintenance and Service
Wheel Nut Tightening
Failure to properly torque-tighten the wheel nuts can result in the breakage
of wheel studs and the subsequent loss of wheels. This can lead to loss of
vehicle control and serious personal injury or death.
After the initial tightening, retightening must be made within the first
800 km (500 miles). After the first retightening, only normal inspection of nut
tightness is needed. Check front and rear wheel nut tightness with a torque
wrench. All disc wheels for Volvo vehicles have a tightening torque of
610 Nm (450 lb-ft). Tighten the nuts in the correct sequence. Inspect bolts and
nuts for signs of wear or cracks. Make sure that the bolts are not bent. This
tightening check is particularly important when rims or brake drums are newly
painted. Paint can flake off from these surfaces, causing the nuts to lose their
grip and the wheel to loosen.
10-Stud Wheel Nut Tightening Sequence
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