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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Brush & Commutator Inspection

1. Check continuity between blue terminal and black lead wire.
2. If continuity is poor, check brush to commutator contact area.
3. If contact area is fouled, use suitable solvent to clean area. When surface is coarse or burnt, use sandpaper to polish surface smooth.
4. If necessary, replace brushes. Replace brushes as a set.