Stihl MS 192 T Manual page 7

3.5 Tightening Torques
DG screws are used in polymer and light metal components. These screws form a permanent thread when they
are installed for the first time. Screws can be removed and installed as often as necessary without impairing the
strength of the screwed assembly, provided that the specified tightening torque is observed.
For this reason, it is essential to use a torque wrench.
Fastener
Screw
Screw
Collar screw
Screw
Screw
Nut
Nut
Nut
Nut
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Nut
Screw
6
Thread size For component
DG 4x15 Chain tensioner cover plate / engine
housing
D 6x13 Collar screw for guide bar, rear
DG 8x18 Collar screw for guide bar, front
B 4.2x9.5 Cover plate/ screen/ muffler
P 4x12 Cover/ sprocket cover/ engine housing
tensioner
M 5 Filter base/ handle housing, 1st stage
aluminium
M 5 Filter base/ handle housing, 1st stage
M 5 Filter base/ handle housing, 2nd stage
aluminium
M 5 Filter base/ handle housing, 2nd stage
P 6x19 Handle housing/ front handle
P 4x12 Handle moulding/ handle housing
P 6x19 Retaining plate/ loop/ engine housing
DG 5x20 Engine pan/ cylinder
P 5x16 Bearing plug/ handle housing
P 5x16 Bearing plug/ engine housing, sprocket
side
P 5x16 Bearing plug/ engine housing, fan side
P 5x16 Fan housing/ engine housing
M 8x1 L Carrier
DG 5x20Z Engine housing/ cylinder
DG 4x20 Oil pump/ engine pan
P 4x12 Annular buffer, support/ engine housing
P 5x29.6 Annular buffer/ handle housing
DG 5x20 Muffler / cylinder
M 8X1 Flywheel/ crankshaft
M 14x1.25 Spark plug
DG 4x20 Ignition module/ cylinder
Tightening Remarks
torque
Nm
2,5
6,0
16,0
2,0
2,5
1,5
2,0
2,5
3,5
6,0
1,5
6,0
8,0
4,0
4,0
4,0
4,0
25,0
8,0
4,5
2,5
5,0
9,0
18,0
25,0
4,5
MS 192 T