81. POWER HEAD - Factory Assembled to the Drive Shaft assembly. Includes the Engine, Clutch, Fuel System, IgnitionSystem and Recoil Starter.2. GRIP - Rear (right hand) handle.3. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing.. Move switch FORWARD toRUN, BACK to STOP.4. FRONT HANDLE - The Front (loop) handle is factory assembled to the Drive Shaft assembly but must be reposi-tioned for proper cutting attitude and operator comfort.5. DRIVE SHAFT ASSEMBLY - Factory Assembled to the Power Head. Includes the Rear (right hand) HandleAssembly, Bearing Housing Assembly, Throttle Trigger, Front (loop, left hand) Handle Assembly, Flexible DriveCable and Safety Decals.6. NYLON CUTTER HEAD - Contains replaceable nylon trimming line that advances when the trimmer head is tappedagainst the ground while the head is turning at normal operating speed.7. CUT-OFF KNIFE - Trims line to the correct length (5 in.). If trimmer is operated without a cut-off knife the line willbecome too long - more than (5 in.) - the operating speed will slow, the engine overheat and performance will suffer.8. DEBRIS SHIELD ASSEMBLY - Included in plastic bag (co-pack). MUST be installed on unit before use, seeAssembly Instructions. Shield assembly includes the Cut-Off Knife and Safety Decal. Mounts on the BearingHousing Assembly just above the cutting attachment. Helps protect the operator by deflecting debris producedduring the trimming operation.9. THROTTLE TRIGGER - Spring loaded to return to idle when released. During acceleration, press trigger graduallyfor best operating technique.10. SHOULDER HARNESS - Optional (P/N 99944200201). An adjustable strap that suspends the unit from the operator.11. TOP GUARD - Protects operator's arm from the hot engine during normal operation.12. SPARK ARRESTOR - CATALYTIC MUFFLER / MUFFLER -The muffler or catalytic muffler controls exhaust noiseand emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keepexhaust area clear of flammable debris.13. FUEL TANK - Contains fuel and fuel filter.14. RECOIL STARTER HANDLE - Pull handle slowly until recoil starter engages, then quickly and firmly. When enginestarts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.15. FUEL TANK CAP - Cover and seals fuel tank opening.16. PURGE BULB - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from thecarburetor. Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump purge bulban additional 4 or 5 times.17. AIR CLEANER - Contains replaceable filter element.18. CHOKE - Located at the rear of the air cleaner housing. Move choke lever to "Cold Start" ( ) to close choke forcold starting. Move choke lever to "Run" ( ) position to open choke.19. SPARK PLUG - Provides spark to ignite fuel mixture.