User manual MCCULLOCH 55-170 R SPARE PARTS LIST

[. . . ] CLOTHING - Always wear heavy, long pants, boots, gloves and long sleeve shirt. Do not wear loose clothing, jewelry, short pants, sandals, or go barefoot. Always wear a hard hat, a safety face shield, or safety glasses for eye protection and a good grade of ear plugs or other sound barriers for hearing protection. 2 FUELING - Mix and pour fuel outdoors where there are no sparks and flames. [. . . ] The debris shield must be installed (Figure 3-2A) to properly dispense cutter line and protect operator. Use regular grade unleaded gasoline mixed with Genuine McCulloch 40:1 2-cycle engine oil for best results. This will cause permanent engine damage and void the manufacturer's warranty for that product. If 2-cycle lubricant other than Genuine McCulloch Lubricant is to be used, it must be a premium grade oil for 2-cycle air cooled engines mixed at a 40:1 ratio. Do not use any 2-cycle oil product with a recommended mixing ratio of 100:1. If insufficient lubrication is the cause of engine damage, it voids the manufacturer's engine warranty. NOTE: To minimize load on engine during starting and warm-up, trim excess cutting line to 5" (13cm) (Fig. Your unit is designed with a 3 position choke: CHOKE " ", START " ", and RUN " ". Pull starter rope again 4 times while trigger is in the full throttle position. Once engine starts, leave in the START " " position for 10 seconds. NOTE: If engine fails to start after repeated attempts, refer to trouble shooting section. To release fresh line, run engine at full throttle and "bump" stringhead against lawn. Be sure engine is off and string head has stopped before attempting to remove weeds wrapped around the shaft. They will need to be removed or they will prevent the shaft from being properly cooled and could result in damage. Position trimmer straight ahead with a slight tilt so bottom of stringhead is above ground level and string contact occurs at proper cutting point. Sweeping refers to tilting stringhead to sweep away debris from walkways, etc. Your trimmer is a powerful tool and small stones or other such debris may be hurled 50 feet (15 meters) or more, causing injury or damage to nearby property such as automobiles, homes and windows. Approach trimming around chain link fences, picket fences, rock walls and foundations slowly to cut close without whipping string against the barrier. If the string comes in contact with rock, brick walls, or foundations, it will break or fray. Trim around tree trunks with a slow approach so string does not contact bark. Keep a distance of 100 feet (30 meters) between operator, other people and animals during these operations. To do this, tilt the stringhead to about a 30 degree angle to the left. [. . . ] Clean exterior of engine, drive shaft assembly, debris shield and stringhead. Store unit in a cool, dry place away from any source of ignition such as an oil burner, water heater, etc. To replace spark arrester screen (A) (Figure 7-6A), use a needle nose pliers, pinch an edge of the spark arrester screen. Then open the pliers a little to press the inner surface of the spark arrester screen to fasten it. [. . . ]