Stihl MS 270 User Manual page 7

Fastener
Spline screw
Spline screw
Clutch carrier
Spline screw
Nut
Pan head screw
Collar screw
Spline screw
Spark plug
Spline screw
Spline screw
Remarks:
1) Only machines with quick chain adjuster
6) Secure screw with Loctite 270
Screws secured with adhesive are easier to loosen if the adhesive is heated first with a hot air blower.
Exercise caution on polymer components.
Use the following procedure to fit a P (Plastoform) screw in an existing thread:
– Place the P screw in the hole and rotate it counterclockwise until drops down slightly.
– Tighten the screw clockwise to the specified torque.
This procedure ensures that the screw engages properly in the existing thread and does not form a new thread,
which would weaken the assembly.
Power screwdriver speed setting for polymer:
– P screws: max. 500 rpm
MS 270, MS 280
Thread For component
size
IS-DG5x24 Fan housing/crankcase
IS-DG5x24 Fan housing/bearing plug
M12x1L Carrier/crankshaft
IS-DG5x18 Muffler/cylinder
M8x1 Flywheel/crankshaft
M4x8 Inner side plate
M8SK6 Dihedral sleeve/crankcase/bar guide
IS-M5x28 Cylinder/crankcase
M14x1.25 Spark plug
IS-DG4x20 Ignition module/cylinder
IS-DG4x16 Oil pump/crankcase
Torque Remarks
Nm
9.0
4.0
50.0
9.0
28.0
1)
3.0
1) 6)
30.0
9.0
25.0
4.0
3.0
7