M16 (C) TANDEM TRAINER
MAINTENANCE MANUAL
PAGE
ISSUE
80
A_November 2012
3.16
REPLACEMENT
OF
FUEL
PIPES
WARNING
DANGER:
A
visual
check
of
all
visible
fuel
lines
needs
to
be
done
as
a
pre
‐
flight
check.
Pipes
must
not
show
abrasions,
cuts
or
wear
marks.
Vulnerable
points
will
be
close
to
the
clamps
where
longitudinal
cuts
of
the
outer
covering
may
occur
because
of
ageing.
Furthermore,
the
fuel
system
must
not
show
any
leaking
or
marks
of
undue
rubbing
on
the
pipes.
If
some
of
the
anomalies
cited
above
are
found
during
the
visual
check,
the
replacement
of
the
fuel
pipes
becomes
necessary.
Follow
the
procedure
described
below.
3.16.1
FUEL
PIPES
REPLACEMENT
PROCEDURE
(See
Fig.
3.16/1
and
3.16/2)
1.
Before
starting
verify
that
the
engine's
ignition
key
and
push
‐
button
are
in
OFF
position
and
that
all
the
breakers
are
switched
OFF;
2.
Examine
the
complete
layout
of
the
fuel
pipe
and
of
the
fixing
systems
pn
176
along
the
line
taken
into
account;
3.
Loosen
the
fixing
clamps
pn
176
of
the
pipe
that
needs
replacement;
4.
Remove
the
fuel
pipe
pn
175
from
the
connections
of
the
various
devices,
paying
attention
to
possible
spilling
or
loss
of
fuel,
especially
if
the
pipe
pn
175
is
placed
lower
than
the
fuel
level
inside
the
tank;
5.
Replace
the
damaged
fuel
pipe
pn
175
with
a
new
pipe
of
the
same
length;
respect
the
original
fuel
line
layout
and
its
fixing
systems.
6.
Insert
the
new
pipe
in
the
connections
of
the
devices
concerned
and
fix
it
with
the
special
clamps
pn
176
(replace
these
clamps
if
possible);
7.
If
the
gyroplane
has
a
ROTAX
914
engine
and
if
some
pipe
upstream
the
fuel
filter
pn
274
(10,
fig.
3.16/2)
has
been
replaced,
the
bleeding
of
the
system
is
required.
Therefore
remove
the
delivery
pipe
from
the
pressure
regulator
(7);
8.
Fit
a
connection
with
an
extension
to
the
delivery
pipe
(11,
fig.
3.16/2)
so
as
to
extend
the
line
to
an
external
can;
WARNING
DANGER:
9.
Check
that
there
are
no
people
or
objects
close
to
the
power
plant;
10.
Insert
the
10
A
Equipment
(2)
and
20
A
Generator
(3)
breakers;
11.
Put
the
MASTER
switch
(4)
in
ON
position;
12.
Put
the
fuel
electric
pumps
switches
(5)
and
(6)
in
ON
position
and
let
them
function
for
approx.
10
seconds
to
allow
the
cleaning
of
the
pipe
inside
and
the
complete
bleeding
of
the
system.
Summary of Contents for M16C
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