6 MS 171, MS 181, MS 211
3.5 Tightening Torques
DG and P (Plastoform) 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, providing 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 P 4x12 Cover plate, chain sprocket cover 2.5
Screw B 3.9x13 Cover plate (special accessory) 1.0
Screw D 4x15 Chain tensioner cover/engine housing 2.5
Collar screw D 8x18 Collar screw, engine housing/guide bar,
rear
16.0 1)
Collar screw D 8x18 Collar screw engine housing/guide bar,
front
16.0 1)
Screw P 4x16 Cover, chain brake/engine housing
(repair solution)
2.0
Screw D 5x16 Cover, chain brake/engine housing
(repair solution)
2.0
Countersunk screw M 6x14 Replacement chain catcher (repair
solution)
4.0
Screw P 5x20 Filter base/engine housing 4.0
Screw P 5x20 Filter base/engine housing/carburetor
carrier
4.0
Screw D 5x16 Spiked bumper/engine housing 3.5
Screw D 4x12 Manifold/cylinder 4.0
Screw P 5x20 AV bearing plug, front bottom/engine
housing
4.0
Screw P 5x20 AV bearing plug, rear bottom/handle
frame
4.0
Screw P 5x20 AV bearing plug, rear bottom/engine
housing
4.0
Screw D 5x18 AV bearing plug/cylinder 8.0
Screw P 5x25 Fan housing/hand guard/engine
housing
4.0
Screw P 5x20 Fan housing/engine housing 4.0
M 12x1 L Clutch/crankshaft 50.0
Screw D 5.3x41 Crankcase/engine pan/cylinder 11.0
Collar nut M 5 Baffle/filter base/collar screw,
carburetor
3.5
Screw D 5x18 Muffler/cylinder 8.0
Nut M 8x1 Flywheel/crankshaft 28.0 2)
M 10x1 Spark plug 12.0
Screw D 4x18 Ignition module/cylinder 4.0
To Next Page
Loading...
Need help?
General
