Stihl MS 441 - Page 8

7MS 441, MS 441 C
Fastener Thread size For component Torque Remarks
Nm
Screw M 4x12 Oil pump/crankcase 3.5
Screw M 5x16 Muffler/cylinder 10.0 1)
Screw P 4x10 Slide/housing 1.0
Nut M 5 Slotted nut, shroud/stud, cylinder 3.0
Screw P 4x10 Guard/handle housing 1.5
Nut M 8x1 Flywheel/crankshaft 28.0 3)
Screw M 4x8 Side plate/crankcase 3.0
Screw M 5x8.5 Stud/cylinder 1.4
Nut M 5 Hexagon cap nut/baffle/flange bolt 1.5
Screw M 4x12 Pre-separator/crankcase 3.0 1)
Screw M 5x16 Elbow connector/front handle 10.0 R
Screw P 6x30 Elbow connector/front handle/
handle housing
7.0 R
M 14x1.25 Spark plug 25.0
Screw M 5x20 Ignition module/crankcase
(with washer)
8.0
Screw M 5x12 Spacer flange/housing 5.0
Screw M 6x25 Cylinder/crankcase 15.0
Remarks:
1) Loctite 243 medium strength
2) Loctite 270 high strength
3) Connection between crankshaft and flywheel must be degreased and installed oil-free
Q = QuickStop Super chain brake
R = Wrap-around handle
V = Carburetor heating
W = Handle heating
When inserting the DG and P-type screws in an existing thread:
Insert the DG or P-type screw in the hole and turn it counterclockwise until it gently drops into the hole in axial
direction.
Turn the screw in clockwise and tighten with the specified torque.
This ensures that the screw engages the existing thread and does not cut a new thread, thus preserving the
strength of the screw connection.
Micro-encapsulated screws must be wetted with Loctite 243, medium strength, before being refitted.
Screwdriver speed when fitted in plastic material: max. 500 rpm for DG and P-type screws.
An impact wrench must not be used to unscrew or tighten the screw connections!
Screws with and without locking serration must not be confused!