Loosen the bar mount nuts about 1 turn, locate the tension-er screw next to the chainsaw's bar and while holding the bar up turn the screw clockwise until the chain is properly tensioned. while still holding the bar up, tighten the bar mount nuts, test the chain for proper tension. It should not be too tight, you should be able to rotate chain by hand, nor too loose where the chain's drive link's are hanging down below the bar's groove on the bottom side.
SOURCE: putting a new chain on mac cat super 16 av, and adjust more oil
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SOURCE: tightening the chain tension on an Oleo-Mac 19E
Good job Beer, I was not to find anything.
The parent company is Emak
http://www.emakgroup.com/
In the USA they are marketed as efco. No electrics offered probably 220 50 cps only.
http://www.efcopower.com/indexPri.jsp
oleo-mac
http://www.oleomac.it/index.jsp?idProgetto=2&idLinguaSito=2
SOURCE: tightening the chain
Fuel ratio is 40:1 using modern chain saw oil--not any petroleum base oil like boat motor oil. Be sure to premix fuel and oil in it's own container and to shake vigorously just before filling the saw each time. To remove the chain, loosen the chain adjustment screw several turns CCW, release the chain brake, and remove the side nuts that hold the rear chain cover. The cover will just pull off, then the bar can be pulled rearward somewhat and the chain worked off of the bar. Remove the bar by pulling it outward. Clean the entire area where the bar and chain fit to the engine, then clean the bar oil ports that run from the larger holes out to the chain groove on each side of the bar. Start the engine with bar/chain removed--oil should ooze out of the side port where the bar fits to. If ok, and the chain appears to be relatively unworn, refit everything in the reverse order of removal, making sure that the chain teeth cut toward you on the bottom run, and the chain adjustment tang drops into one of the large oil holes when replacing the cover. Tighten the mounting nuts only finger tight, and adjust the chain screw CW until the chain ceases to droop from the lower side of the bar, yet not so tight that it can't be turned by hand. Tighten the mounting nuts firmly and recheck the chain tension. If ok, and the engine runs well, start the machine and hold the bar tip near some cardboard while running at speed for several moments--it should throw off a thin line of oil onto the cardboard. Use common chain/bar oil available from home centers, hardware stores and saw dealers. Make sure the chain is properly file sharpened. Hope this helps!
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