Applicable to: B22 and B25 (a ll versions)
Revision 1.3 – 02/24/ 2015
Manual B – Operations
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position follow the fuel line from tank up to the engine and check for leaks or even small
leakages of fuel. Carefully check the area of the shunt fuel, which has to be clean and free of
sludge or smudges of greenish color.
If the FD- m group is installed it is necessary to remove the cover and check for leaks from the
fuel lines and components; also check the clamps holding the pumps.
In the case of leaks or even in doubt, avoid starting the engine and contact
a service center.
g.
Throttle Command Check
Completely push the throttle command in the cab and return to the idle position: pay attention
to any jamming or roughness in the command.
h.
Exhaust System Check
Carefully observe the exhaust manifolds and the muffler and verify the absence of cracks, loss
of lubricant or fuel, or vented exhaust gases, especially in the area of coupling to the engine.
Also check the condition of the springs and retaining screws.
A damaged exhaust system causes a reduction in engine performance and
may cause poisoning, burns or fire
.
i.
Electric System C heck
Inspect all electrical connectors and especially the state of the cables from the connectors,
check the tightness of the ground connections and the positive power and check the spark plug
wires and the clamping on the spark plug. Check that all the fixing points of the wiring to the
engine are properly tightened. Check the efficiency of all the fuses and if the fuse and relays
in the engine compartment are properly connected. If the EH- m group is installed check the
efficiency
of
the
damping
elements
assembly
mounting
to
firewall.
In case of the use of a dual battery system, before starting the engine, check the state of
efficiency of both batteries, bringing the first master switch in position A and then in position
B: in both cases the voltage read must be greater than 11.7 volts, otherwise it is necessary to
recharge the battery before starting the engine.
B.7.3.2. Start Operation
Do not leave the aircraft unattended with the engine running.
Before starting the engine, make sure that nobody is in the proximity of the
aircraft or in the area considered dangerous
.
Thanks to the injection system, to perform the start, both with the engine hot, or
with engine cold, it is not necessary to manually adjust the mixture, as the
enrichment is operated in automatic mode.
The start- up sequence is as follows
.
a.
Set the throttle to the idle position.
