2) Before Engine Start; 3) Pre-Flight Checks - Rotax 912 series Operator's Manual

10.3.2) Before engine start

10.3.3) Pre-flight checks

Effectivity: 912 Serie
OM Rev. 3
Carburetor:
— Verify free movement of throttle cable and starting carburetor
over the complete range. Check from the cockpit.
Exhaust system:
— Inspect for damages, leakage and general condition.
Carry out pre-flight checks.
WARNING: Ignition "OFF" Before cranking the propeller
switch off both ignition circuits and anchor the
aircraft. Have the cockpit occupied by a competent
person.
Operating media:
WARNING: Carry out pre-flight checks on the cold or luke
warm engine only! Risk of burning and scalds.
Check for any oil-, coolant- and fuel leaks.
If leaks are evident, rectify before flight.
CAUTION: The coolant specifications of the section 10.2
Operating media are to be observed.
— Verify coolant level in the overflow bottle, replenish as required
up to top.
The coolant level must be between min. and max. mark or at
least 0.2 litre (0.4 liq pt).
CAUTION: The oiI specifications of the section 10.2 Operat-
ing media are to be observed.
— Check oil level and replenish as required.
WARNING: Propeller may not be turned reverse the normal
direction of rotation. See also section 10.1) General
limits of operation.
— Prior to oil check, turn the propeller by hand in direction of
engine rotation several times to pump oil from the engine into
the oil tank, or let the engine idle for 1 minute.
This process is finished when air is returning back to the oil tank
and can be noticed by a murmur from the open oil tank.
NOTE: Oil level should be between max. and min. mark
of the oil level gauge but must never be below
min. mark. Before longer periods of operation
ensure that oil level is at least up to mid-position.
Difference between max.- and min.- mark = 0,45 litre (0.95 liq pt)
AIRCRAFT ENGINES
page 10 - 15
July. 01/2004