Rotax 503 UL User Manual

13.3.4) Remedies:
-
-
Fuelling
without
aaces
of water
(use
shammy
as filter).
-
G€nerously
sized water
separator.
-
Fuel lines
routing
inclined.
prevenr
condensation
of humidity,
i.e.
avoid
tempemture
differences
between
aircraft
and fuel.
-
Add up
to 2 7a isoprcpyl
atcohol
ro the fuel.
ATTENTIONT
Fuels
containing
dcohol
always carq/
a
small
amount
of wat€r
rn
solution. In case
of tempentue
changes
or iflcleae
of
alcohol
conteDtj
water
ot a mixture
of
alcohol and
water may
settle
and
could
cause
troubles.
14) Maintenance:
14.1) Maintenance
schedule:
WARNING:
1)
Maintenance
on engines
and systerns
requires
special
knowledge
and
tools.
rt is
therefore
rccommended
to have
these
works performed
by authorized
service
centers
or
dealers.
2) Disconnect
spark plug
leads
with
a tuming
motion
for all
maintenance
and inspecrion
procedues.
3) Putting
spa*
plug
connector
back on,
make
sure that
spark plug
teminal
is
ighr
on
plu8.
Service times are
based on
average
use, ilssatming
engine
is
run
at
least
once
per
*,eek
for
a
normal
duty cycle or
average flight.
Total
Linre
b€fore
teardown
is derermined
by the
fiequen_
cy
alld conditions
ofusage. Ifthe
engine
i s not going
to be u
sed for
a
period
of Z
months
or
more,
consult
storage ptocedrres
in
this
section.
AJter initial
break-in period
certain
irspections
and checks
must
be made
to
ensure
all
components
and settings have
rcmained
tight and
are within
the specified
tolerance.
Failurc
to
do so could lead
to
ptematurc
engine failurc.
I
^.
t

Rotax 503 UL Specifications

General

Brand	Rotax
Model	503 UL
Category	Engine
Language	English