Stihl 28 User Manual

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Top:
Piston on wooden assembly block
Bottom:
Piston rings correctly positioned
Fit new cylinder gasket on the crank-
case. Lubricate piston and piston
rings with
oil. Place wooden block
on the crankcase so that piston is
resting on
it..
Position each piston ring so that the
radii at
the ring gaps locate against
their respective fixing pins in the
piston grooves.
Fitting the cylinder
Insert the four M 5 x 16 socket head
screws in the
cylinder mounting
holes .. Using the ring compressor or
clamping strap, compress the piston
rings
while making sure they are
correctly positioned.. Fit
cylinder
over the piston with the exhaust port
facing in the direction of the
guide
bar tip .. During this process make
sure
that the cylinder is properly
aligned, Le.
the outer edges of the
cooling fins must be exactly parallel
with the outer edge of the crankcase
atthe sprocket side .. Ifthis alignment
is not carried out, the piston rings
may break .. The ring compressor is
pushed downwards as the piston
rings
move into the cylinder .. Re-
move wooden
assembly block and
ring compressor..
Push flange of
elbow connector through the bore
in the
tank housing (do not use a
sharp
tool forthis purpose) and align
the cylinder gasket and cylinder ..
Tighten down the four cylinder base
screws to a
torque of 7 .. 8 Nm
(0 . .8 kpm) in a diagonal pattern..
Tightening cylinder base screws with
torque wrench
Insert sleeve in elbow connector
and then refit carburetor (see 1004),
muffler, shroud, spark plug and car-
buretor box cover ..

Stihl 28 Specifications

General

Brand	Stihl
Model	28
Category	Chainsaw
Language	English