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)

Or, hide this message: temporarily or permanently

Functions of Components






2nd And 4th Brake: Fixes planetary sun gear

Reverse Clutch: Meshes input shaft and sun gear

One-way Clutch No.1: Prevents front planetary ring gear from turning counterclockwise (reverse direction of engine input rotation direction)

1st And Reverse Brake: Fixes front planetary ring gear

Overdrive Clutch: Meshes front planetary ring gear and input shaft only when forward clutch is at work

One-way Clutch No.0: Prevents rear planetary ring gear from turning counterclockwise (reverse direction of engine input rotation direction) only when forward clutch is at work

Coast Clutch: Meshes rear planetary ring gear and input shaft only when forward clutch is at work

Forward Clutch: Meshes rear planetary and front planetary ring gear only when overdrive clutch is at work, and meshes input shaft and rear planetary ring gear only when coast clutch is at work