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

Front Hub Bearing Preload Check



Check the hub bearing preload at the wheel pin.

New bearing and New oil seal: 19.6 - 24.5 N (4.4 - 5.5 lb)
Used bearing and New oil seal: 11.8 - 17.7 N (2.6 - 4.0 lb)