Stihl 4180 Series Manual page 7

Fastener
Socket head screw
Nut
Socket head screw
Screw plug
Spark plug
Socket head screw
Socket head screw
Socket head screw
Remarks:
1)
Version with bike handle
2)
Version with loop handle
3)
KombiEngine
4)
FS 100 RX
5)
Degrease crankshaft/flywheel and mount oil-free
6)
FS 90, 100; KM 90, 100; FC 90, 95, 100
Use the following procedure when refitting a DG or P screw in an existing thread:
Place the screw in the hole and rotate it counterclockwise until it 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 and weaken the assembly.
Power screwdriver setting for polymer: DG and P screws max. 500 rpm
Do not use an impact wrench for releasing or tightening screws.
Do not mix up screws with and without binding heads.
Coat micro-encapsulated screws with medium strength Loctite 243 before reinstalling.
6
Thread size For component
IS-DG5x24 Starter cover/tank/engine pan
M8x1 Starter cup/crankshaft
IS-M5x30 Valve cover/cylinder
M11x10 Screw plug/gearbox
IS-M10x1 Spark plug
IS-DG4x18 Ignition module/cylinder
IS-DG5x32 Spacer flange/cylinder
IS-P5x14 Fan housing/clutch drum bearing
Torque
6.0
17.0
3.5
10.0
9.0
4.5
9.0
6)
4.0
Series 4180 Powerhead