TM 3-1040-276-10
Control or
Key
Indicator
Function
10
Magneto-air pump handle
a. Located at end of magneto air pump rack. Rack has teeth that
engage gear on magneto shaft. At other end of rack is a plunger
that fits in magneto air pump tube. Handle is used to start engine
and purge engine exhaust gases. Pump handle turns gear that
activates ignition magneto. Magneto sends electrical charge to
b. Pump handle also forces air into combustion chamber of engine
assembly. Forced air purges hot exhaust gases out smoke dis-
cools engine, reduces hazard from flashback, and makes restart-
ing easier.
2-3