81
Cylinder and piston
7
505 38 17-05
Fit the cylinder with crankshaft in the
crankcase.
NOTE!
Re-tighten the cylinder screws.
Mod. 2041/2045/2050
Fit the piston on the connecting rod. Make
sure that the arrow on the piston head is
turned towards the exhaust port.
Make sure that the arrow on the piston
head points towards the exhaust port and
push the piston into the cylinder barrel.
Fit the cylinder with crankshaft in the
crankcase.
Use Locktite on the screws and tighten
them crosswise. Tightening torque: 11
Nm.
Fit the other parts in the reverse order to
dismantling.
Check when fitting the adapter that the
inlet pipe and impulse channel are corr-
ectly positioned and seal tightly.
NOTE!
The cylinder screws shall be re-tighte-
ned. Fit the bar and chain and run the saw
warm for 2-3 minutes.
Allow the engine to cool and re-tighten
the screws to the correct tightening torque.
When the muffler is fitted it is important
that the exhaust pipe from the cylinder is
turned with the round holes upwards and
away from the cylinder.
Mod. 2041/2045/2050
Before fitting the piston and cylinder refer
to chapters ”Cleaning, inspection” and
”Analysis and procedure”.
Lubricate the piston bolt’s needle bearing
with a few drops of motor oil.
Align the arrow on the piston head towards
the exhaust port.
Press in the piston bolt and fit the circlips
by using a pair of flat pliers. Check that
the circlips are fitted well down in their
grooves by turning them with the pliers.
Lubricate the piston ring and piston with a
few drops of engine oil and push the
piston into the cylinder barrel with a rocking
movement.
Make sure that the arrow on the piston
head points towards the exhaust port. Do
not twist the piston since there is a risk
that the piston ring can be broken off.
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