Tightening Torques - Stihl MS 441 Manual

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
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Collar screw
Collar screw
Screw
Screw
Collar nut
Collar nut
Screw
Screw
Screw
Mutter
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Nut
6
Thread size For component
M 4x8 Chain tensioner cover plate/crankcase
M 7x12.5 Fan housing shaft
P 5x20 AV spring, crankcase/bearing plug
M 5x20 AV spring, bearing plug/front handle
M 5x16 AV spring, bearing plug/cylinder
P 5x20 AV spring, tank housing/bearing plug
P 4x10 Brake cable/throttle cable retainer
M 8x21.5 Bar mounting stud
M 6x20 Collar screw/crankcase
M 4x12 Cover, chain brake/crankcase
UNC 2.84x9 Switch/carburetor cover
M 10x1 Decompression valve
M 5 Filter base/baffle/carburetor/collar
screw
M 5 Filter base/carburetor/collar screw
B 4.2x9.5 Spark arresting screen/muffler
P 4x10 Throttle cable retainer/handle housing
M 5x16 Housing/crankcase
M 12x0.75 Housing/switch
M 4x12 Generator/crankcase
P 6x30 Front handle/tank housing
M 5x35 Hand guard, left/crankcase
M 5x20 Chain catcher/spiked bumper/
crankcase
M 5x12 Spiked bumper/top of crankcase/
lock nut
M 5x16 Intake elbow/cylinder
M 5x8.8 Crankcase
M 5x25 Crankcase
M 4x12 Crankcase/brake band
M 5x20 Fan housing/crankcase
M 12x1 L Crankshaft carrier
M 5 Muffler/flange bolt (with washer)
Torque Remarks
Nm
3.0
12.0
4.0
6.0
10.0 2)
4.0
1.0 Q
23.0 1)
12.0 1)
3.0
0.7 VW
14.0
3.5
3.5
2.0
0.8
7.5
2.0 W, VW
3.0 1), W, VW
7.0
6.0
8.0
8.0
6.0
6.0
10.0
3.0 1)
6.0
50.0
10.0
MS 441, MS 441 C