SMOKE GENERATION SYSTEM REPLACEMENT
There are two configurations of the smoke generating system. Early
systems use a dual solenoid configuration. It was found that fuel,
trapped between the two solenoids and heated by the close proximity
of the exhaust, expanded and caused internal seals of the solenoids to
fail resulting in un-commanded smoke generation and higher fuel
consumption. Newer, improved systems use a single solenoid system.
The newer system removes the two flywheel-end mounted solenoids
and incorporates a single solenoid at the damper end of the engine
where it is cooler. Engineering Release Record (ERR) CO-M6185
authorizes converting to the single solenoid configuration.
10. Removal of components for the single solenoid system is done in the same manner as those on
the double solenoid system.
Parts unique to the single solenoid smoke generation system are
underlined in the illustration below:
Manual shutoff valve (39).
Adapter (40) between manual shutoff valve and solenoid (20).
Elbow (41) between solenoid (20) and fuel line (6).
Mounting bracket (42).
Fuel line (43) located between bulkhead elbow (12) and
elbow fitting (19).
WP 0094 00-8