Stihl MM 55 Instruction Manual - Page 19
Operating Instructions
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N Insert the bolt (2) with the washer (3) through the hole (4) in the flange N Fit the washer (3) and tighten it down with the nut (5) N Fasten the notched plate (6) to the frame with the screws (7) in the threaded holes - in the process, push the notched plate toward the handle N The wheels must fold down automatically in working position; if necessary, loosen the nut (5) by a quarter turn Additional weight is attached to the MultiEngine If additional weight (special accessory) - see "Additional weight" - is already attached to the MultiEngine, then additional parts are required in order to install wheels. In this case, have the wheels installed by a servicing dealer. STIHL recommends that maintenance and repair work be carried out only by authorized STIHL dealers. Folding the wheels in and out The wheels can be locked in various positions. If the wheels are not needed during work, fold in the wheels. 8 N Loosen knob (8) N Engage knob in the desired working position and tighten it 469BA036 KN English Operating Instructions During break-in period A factory-new machine should not be run at high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings. During Operation After a long period of full throttle operation, allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This protects enginemounted components (ignition, carburetor) from thermal overload. After Finishing Work Storing for a short period: Wait for the engine to cool down. Empty the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again. For longer out-ofservice periods - see "Storing the Machine". MM 55, MM 55 C 17