User manual DOLMAR MS-250.4

[. . . ] Important: Read this instruction manual carefully before putting the Brush Cutter/String Trimmer into operation and strictly observe the safety regulations!Thank you very much for purchasing the DOLMAR Brush Cutter/String trimmer. We are pleased to recommend to you the DOLMAR Brush Cutter/ String trimmer which is the result of a long development programme and many years of knowledge and experience. Please read this booklet which refers in detail to the various points that will demonstrate its outstanding performance. [. . . ] be sure to open the choke lever to the full in the end. ­ In cold or when the engine is cooled down, never open the choke lever suddenly. Note: ­ If the starter handle is pulled repeatedly when the choke lever remains at "START" position, the engine will not start easily due to excessive fuel intake. ­ In case of excessive fuel intake, remove the spark plug and pull the starter handle slowly to remove excess fuel. If the throttle lever is opened fully in a no-load operation, the engine rotation is increased to 10, 000/min or more. Never operate the engine at a higher speed than required and at an approximate speed of 6, 000 - 8, 500/min. 4) If it is difficult to start the engine, open the throttle by about 1/3. Pay attention to the cutter blade which may rotate. When the engine is operated upside down, white smoke may come out from the muffler. 1) Release the throttle lever (6) fully, and when the engine rpm has lowered, set the I-O switch to STOP the engine will now stop. 2) Be aware that the cutting head may not stop immediately and allow it to slow down fully. When it is necessary to adjust the low-speed rotation (idling), perform it by the carburetor adjusting screw. If it is necessary to change the rotation speed, regulate the adjusting screw (illustrated on the left), with Phillips screwdriver. ­ Turn the adjusting screw to the right, and the engine rotation will increase. Turn the adjusting screw to the left, and the engine rotation will drop. CAUTION : The cutting tools mentioned below must only be resharpened by an authorized facility. NOTE : To increase the service life of the cutter blade (star blade, eddy blade) it may be turned over once, until both cutting edges have become blunt. The nylon cutting head is a dual string trimmer head capable of both automatic and bump & feed mechanisms. The nylon cutting head will automatically feed out the proper length of nylon cord by the changes in centrifugal force caused by increasing or decreasing rpms. However, to cut soft grass more efficiently, bump the nylon cutting head against the ground to feed out extra cord as indicated under operation section. Low speed (under 4, 800/min) is not suitable, the nylon cord will not feed out properly at low speed. The most effective cutting area is shown by the shaded area. [. . . ] The warranty period for this engine begins on the date of sale to the initial purchaser and continues for a period of 2 years. Listed below are the parts covered by the Emission Component Defect Warranty. Some of the parts listed below may require scheduled maintenance and are warranted up to the first scheduled replacement point for that part. Bring your sales receipts indicating date of purchase for this engine. [. . . ]