Stihl FS 240 Service Manual page 8

Fastener Thread size
Screw M 5x20
Screw M 5x20
Screw M 5x23
Screw IS 5x14
Screw D 5x32
Nut M 8x1
Screw M 6x14
Screw D 6x32
Screw M 5x18
Nut M 8x1
Screw P 6x19
Screw M 14x1.25x7
Screw P 4x14
Screw P 4x10
Screw M 11x10
M 10x1
Screw D 4x18
Screw M 5x20
Screw D 5x32
Remarks:
1) Easy-slide coating with locking serration
2) Microencapsulated with locking serration
3) Microencapsulated with washer
4) Connection between crankshaft and flywheel must be degreased and oil-free
5) 1-point antivibration system
6) 4-point antivibration system
7) M-Tronic
When inserting DG and P screws into an existing screw thread:
Insert the DG or P screw in the hole and turn counterclockwise until it gently drops into the hole in axial direction.
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.
As a rule, microencapsulated screws must be replaced after removal.
Screwdriver speed when used in plastic material: max. 500 rpm for DG and P-type screws.
Do not use an impact wrench to release or tighten screw connections.
Screws with and without locking serration must not be confused.
FS 240 C, FS 260 C, FS 360 C, FS 410 C, FS 460 C-M
For component
Clamp/ control handle for loop handle/ nut
Cutting attachment deflector/ gear housing
Cutting attachment deflector/ gear housing
Deflector/ antivibration housing
Protective hip plate/ crankcase
Flywheel/ crankshaft
Clamp/ drive tube assembly harness anchor
Clamp/ drive tube assembly with washer
Clamp/ supports/ drive tube assembly
Starter cup / crankshaft
Supports/ plugs antivibration springs
Supports/ muffler with spark arresting screen
Bushing choke/ filter housing
Shim/ deflector
Screw plug/ gearbox
Spark plug/ cylinder
Ignition module/ cylinder
Spacer flange/ cylinder
Cylinder / crankcase
Tightening Comment
torque
Nm
4.5 1)
4.3 1)
10.0
4.0 6)
8.0 1)
28.0
4.5 1)
12.0 1)
4.0 1), 6)
17.0
6.0 6)
8.0
2.0
1.0
9.5
12.0
4.0 1)
8.0 2)
9.0 1)
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