KTM 790 Adventure R 2019 Repair Manual page 325

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-
Position the new piston
ring
lock
(9.
-
Insert the special
tool
and press it
with force towards the
pis-
ton.
-
Turn the
spec
ial
tool
clockwise,
thereby
push ing the piston
ring
lock
into
t
he groove.
I
Insertion for piston
ring lock
(77629030000)
(
p. 479)
-
Ensure
that
the
piston ring lock
is
in t
he
correct position on
both
sides.
The
open side
(9
of
the
p iston ring lock faces upwards.
-
Oi
l
the
cylinder
and
piston.
-
Shift the gap
of
the
piston
rings
by
120°.
-
Mount
special tool
8
on
the
p
iston.
I
Piston ring
compressor
(60029015000)
(~
p. 472)
-
Clamp
the
piston rings together using the
special
tool.
-
Position the
piston with
the
special
tool on the
cylinder.
Tap
lightly
on the piston
ring
compressor
from the
top
with
a
plastic
hammer so
that
it
lies
flush
with the
cylinder.
Info
I
The
special
tool must
press
the
piston
rings
together
properly
and
lie flush
with the cylinder.
-
Dri
ve
the
piston
into the
cyl
inder
by
striking it
carefully
with
the
hammer handle.
Info
I
The piston rings should
not
catch
or
they will be dam-
aged.
ENGINE 19
323

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