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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Field Coil: Testing and Inspection

Field Coil Open-circuit Test (Direct Drive Type Only):

FIELD COIL OPEN-CIRCUIT TEST (Direct Drive Type Only)
Check the continuity between field brushes. If there is continuity, the field coil is in order.

Field Coil Ground Test (Direct Drive Type Only):

FIELD COIL GROUND TEST (Direct Drive Type Only)
Check the continuity between field coil brush and yoke. If there is no continuity, the field coil is free from grounding.