General failures’ analysis
63,4 cm³ chainsaws
Tightening torque cylinder-screws
1,2 Kgm (106,20 in lb) + Loctite 243
Warning:
during assembly
make sure the circlip has
the feet pointing up
Warning:
The arrow on the top of the
cylinder points towards the
exhaust port.
b)
Cylinder and piston inspection
•
Verify the diamond scoring on piston and the nickel-lining on cylinder. Replace if necessary
•
Verify the piston rings wear using feeler gauge (gap max 1,0 mm)
