90 MS 311, MS 391
14. Servicing Aids
No. Description Part No. Application
1 Lubricating grease (225 g tube) 0781 120 1111 Oil seals, sliding and bearing points
2 STIHL special lubricant 0781 417 1315 Bearing bore in rope rotor, rewind spring in fan
housing
3 STIHL press fluid OH 723 0781 957 9000 Rubber components, AV elements
4 STIHL multipurpose grease 0781 120 1109
5 Dirko HT red sealant 0783 830 2000 Engine housing
6 Medium-strength threadlocking
adhesive (Loctite 242 or 243)
0786 111 2101
7 High-strength threadlocking
adhesive (Loctite 648)
0786 111 2117
8 Standard commercial solvent-
based degreasant containing no
chlorinated or halogenated
hydrocarbons
Cleaning sealing faces and carburetor,
crankshaft stubs and flywheel taper
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