6 MS 441, MS 441 C
3.5 Tightening torques
DG or P screws are used in polymer and light metal components. These screws form a permanent thread when
they are installed for the first time. They can be removed and installed as often as necessary without impairing
the strength of the screwed assembly if the specified tightening torque is observed.
For this reason it is essential to use a torque wrench.
Fastener Thread size For component Torque Remarks
Nm
Screw M 4x8 Chain tensioner cover plate/crankcase 3.0
Screw M 7x12.5 Fan housing shaft 12.0
Screw P 5x20 AV spring, crankcase/bearing plug 4.0
Screw M 5x20 AV spring, bearing plug/front handle 6.0
Screw M 5x16 AV spring, bearing plug/cylinder 10.0 2)
Screw P 5x20 AV spring, tank housing/bearing plug 4.0
Screw P 4x10 Brake cable/throttle cable retainer 1.0 Q
Collar screw M 8x21.5 Bar mounting stud 23.0 1)
Collar screw M 6x20 Collar screw/crankcase 12.0 1)
Screw M 4x12 Cover, chain brake/crankcase 3.0
Screw UNC 2.84x9 Switch/carburetor cover 0.7 VW
M 10x1 Decompression valve 14.0
Collar nut M 5 Filter base/baffle/carburetor/collar
screw
3.5
Collar nut M 5 Filter base/carburetor/collar screw 3.5
Screw B 4.2x9.5 Spark arresting screen/muffler 2.0
Screw P 4x10 Throttle cable retainer/handle housing 0.8
Screw M 5x16 Housing/crankcase 7.5
Mutter M 12x0.75 Housing/switch 2.0 W, VW
Screw M 4x12 Generator/crankcase 3.0 1), W, VW
Screw P 6x30 Front handle/tank housing 7.0
Screw M 5x35 Hand guard, left/crankcase 6.0
Screw M 5x20 Chain catcher/spiked bumper/
crankcase
8.0
Screw M 5x12 Spiked bumper/top of crankcase/
lock nut
8.0
Screw M 5x16 Intake elbow/cylinder 6.0
Screw M 5x8.8 Crankcase 6.0
Screw M 5x25 Crankcase 10.0
Screw M 4x12 Crankcase/brake band 3.0 1)
Screw M 5x20 Fan housing/crankcase 6.0
M 12x1 L Crankshaft carrier 50.0
Nut M 5 Muffler/flange bolt (with washer) 10.0
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