Rotax 503 UL User Manual

14.10) Gear
box:
15.10.1) To
be
performed
every
l0 operating
hours:
Check
oii level
on
respective
oil level
screw
ard secure
again
with lock
wire.
Change oil after
lrsr 10 hours
of operation.
Change oil
every 100 hours
or
every 2 years
(whichever
occurs
irrsr).
Check
propeller
clearance
and tracking.
14.11) Storage:
If your
engine is not.going
to
be mn for
a
period
of2 moDrhs
or more,
celain precautions
must
be taken to
protect
the engine and
fuel
system fiom heat,
direct
sun,
corrosion
ind
the formation
ofdeposits. The foilowing
schedule is
a
guide
for
storage procedure:
14.11.1) Internal
engine
components:
Remove
irir
filharion
system,
stan engine
and
allow to
idle. Using
ar
oil_can,
flood
the
engiDe
by injecting
oil through
the carburetor
till
the engine
stalls,
then pilceed
with
fuel
system draining.
14.11.2) Fuel
system:
Drain
float chamber,
renove
fuel from
tank, drain
fuel lines.
-A.
FoUow
illl
snfety Nles
arncl do not
run for
a
ptolonged
period
above idle.
14.12)
After storage
check:
Inspect
engine
and engine
environment
for possible
foreign
nuterials.
Ensure
alr residue
oil
is drained
or
temoved
by crarking
the engine,
and
sperk
plugs
are clean
and
and
properly
galrped.
Refill fuel
tank, purge
fuel line
of
air.
proceed
with
srarting procedure
lsecdon
4).
15)
Tiouble
shooting:
Your RorAXengine
requires
basicnlly
two essenrials
ro
run:
spark a.d
co''ecr
fuel/air
mixture.
The
majority
of
problems quite
ofren
are a simple lack
oforle
or the other.
Org4ni29 y9ur.59lf
and
follow
a set
pattem
to eliminate
corDponents
to find your
fouble.
Fuel:
srafi by checking
the
supply
(rank),
fiffings
(loose),
filter
(clogged),
float
chamber
(fouled),jers
(blocked).
Spark: try new
plugs.
koblerns of a more
complex nature
are
best
left
to
a RorAX
engine
rechnician:
see you,
dealer.

Rotax 503 UL Specifications

General

Brand	Rotax
Model	503 UL
Category	Engine
Language	English