■LINE HEAD USAGE
WARNING
1.Always wear eye protection such as safety goggles. Never lean over the rotating cutting head. Rocks or other debris could be thrown into eyes and face and cause serious personal injury.
2.Keep the debris guard attached in place at all times when the unit is operated.
TRIMMING GRASS AND WEEDS
•Always remember that the TIP of the line does cutting. You will achieve better results by not crowding the line into the cutting area. Allow the unit to trim at its own pace.
1.Hold the unit so the head is off the ground and is tilted about 20 degrees toward the sweep direction.
2.Use full throttle when cutting.
3.You can avoid thrown debris by sweeping from your left to the right.
4.Use a slow, deliberate action to cut heavy growth. The rate of cutting motion will depend on the material being cut. Heavy growth will require slower action than will light growth.
5.Never swing the unit so hard as you are in danger of losing your balance or control of the unit.
6.Try to control the cutting motion with the hip rather than placing the full workload on the arm and hands.
7.Take precautions to avoid wire, grass and dead, dry,
ADJUSTING THE LINE LENGTH
•Your brushcutters is equipped with a semi- auto type nylon line head that allows the operator to advance the line without stopping the engine. When the line becomes short, lightly tap the head on the ground while running the engine at full throttle.
•Each time the head is bumped, the line advance about 1 inch(25.4 mm). For better effect, tap the head on bear ground or hard soil. Avoid bumping in thick, tall grass as the engine may stall by overload.
■STARTING ENGINE
WARNING
•The cutting head will start rotating upon the engine starts.
1.Feed fuel into the fuel tank and tighten the cap securely.
2.Rest the unit on a flat, firm place. Keep the cutting head off the ground and clear of surrounding objects, as it will start rotating upon starting of the engine.
3.Push the primer pump several times until overflown fuel flows out in the clear tube.
4. Move the choke lever to the closed position.
5.Set the ignition switch to the “I” position. Set the throttle lever to the start position (1
Place the unit on a flat, firm place.
Keep the cutting head clear of everything around it.
Stop 
Start
3. Ignition switch | 1 |
2
6.While holding the unit firmly, pull out the starter rope quickly until engine fires.
WARNING
•The product is equipped with a centrifugal clutch mechanism, so the cutting attachment begins to rotate as soon as the engine is started by putting the throttle into the start position. When starting the engine, place the product onto the ground in a flat clear area and hold it firmly in place so as to ensure that neither the cutting part nor the throttle come into contact with any obstacle when the engine starts.
IMPORTANT
•Avoid pulling the rope to its end or returning it by releasing the knob. Such actions can cause starter failures.
7.Move the choke lever downward to open the choke. And restart engine.
8.Allow the engine to warm up for a several minutes before starting operation.
NOTE
1.When restarting the engine immediately after stopping it, leave the choke open.
2.Overchoking can make the engine hard to start due to excess fuel. When the engine failed to start after several attempts, open the choke and repeat pulling the rope, or remove the spark plug and dry it.
■STOPPING ENGINE
1.Release the throttle lever and run the engine for half a minute.
2.Shift the ignition switch to the STOP position.
IMPORTANT
•Except for an emergency, avoid stopping the engine while pulling the throttle lever.
6 Maintenance
WARNING
•Make sure that the engine has stopped and is cool before performing any service to the machine. Contact with moving cutting head or hot muffler may result in a personal injury.
■AIR FILTER
•The air filter, if clogged, will reduce the engine performance. Check and clean the filter element in warm, soapy water as required. Dry completely before installing. If the element is broken or shrunk, replace with a new one.
(1)Air filter
(1)
■FUEL FILTER
•When the engine runs short of fuel supply, check the fuel cap and the fuel filter for blockage.
(1) | (1) Fuel filter |
■SPARK PLUG
•Starting failure and misfiring are often caused by a fouled spark plug. Clean the spark plug and check that the plug gap is in the correct range. For a replacement plug, use the correct type specified by KOMATSU ZENOAH.
Model | Type of Plug | Spark Gap |
BCZ3000DL | CHAMPION RZ7C | 0.6 ~ 0.7 mm |
IMPORTANT
•Note that using any spark plug other than those designated may result in the engine failing to operate properly or in the engine becoming overheated and damaged.
•To install the spark plug, first turn the plug until it is finger tight, then tighten it a quarter turn more with a socket wrench.
