Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Wheel Hub: Testing and Inspection

Wheel Hub: On-Vehicle Inspection and Service
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear, damage) are normal.

WHEEL BEARING INSPECTION
^ Move wheel hub in the axial direction by hand. Make sure there is no looseness of wheel bearing.





Axial end play limit: 0.05 mm (0.002 in) or less

^ Rotate wheel hub and make sure there is no unusual noise or other irregular conditions. If there are any irregular conditions, replace wheel hub and bearing assembly.