Fiate Aviation MZ202, Инструкция по эксплуатации и техническому обслуживанию

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the choke is not in use. Adjust by acting on the relative tensioning device.
STOP PROCEDURE
Before switching off the engine, maintain a minimum 2000-2500 RPM this will allow a
cool down period and allow that the CHT temperatures to reduce to 150 °C (302°F), then
reduce the throttle to minimum, wait a few seconds, and then shut down the engine. If you
follow this procedure during each engine shut down this will help your engine TBO.
THE GEAR DRIVE
Function of the gear drive
Two-stroke engines are designed in such a way as to generate full power at a high number
of revs, namely, 6000 rpm or higher. At these speeds, the performance of the propeller
would be unsatisfactory on account of its small diameter and would produce an
unacceptable amount of aerodynamic noise on account of the speed of rotation.
The only way of reducing the noise and boosting performance is to fit a gear reducer
between the engine and the propeller
Choosing the right reduction .
This engine is sold with mechanical gear reduction which includes helical gears. We choose
this type of gear for the minimum noise it makes and for the power it can give in a compact
size. Our gear reduction also includes a centrifugal clutch. This combination helps rid any
misalignment and therefore aid in reducing vibration. Furthermore the clutch reduces the
dangerous torsion movements to the crankshaft during the start-up procedure.
At start-up the propeller is able to free wheel and becomes engaged only when the RPM of
the engine reaches in excess of 1900-2100 RPM per minutes. The gear couple works in an
oil bath therefore check the level of the oil and change the oil after the firsts 5 hours of
work. And every 200 hours thereafter. Use only high quality gear oil SAE-90 or SAE 80-
120.
The level is up to the lower front plug.