T4521-93110(205) OWNER’S MANUAL HEDGE-TRIMMERS eHT750S eHT600D CAUTION • Before using our products, please read this manual carefully to understand the proper use of your unit. • Keep this manual handy.
English SAFETY FIRST Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and for this reason you are requested to read all such instructions carefully and follow them without fail. ■ NOTES ON TYPES OF WARNINGS IN THE MANUAL WARNING This mark indicates instructions which must be followed in order to prevent accidents which could lead to serious bodily injury or death.
English 1. PARTS LOCATION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
English 2. SYMBOLS ON THE MACHINE For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications, please be careful not to take a mistake. (a).The port to refuel the "MIX GASOLINE" POSITION: FUEL TANK CAP (b).The direction to close the choke POSITION: AIR CLEANER COVER (c).
English 3. SAFETY PRECAUTIONS ■ BEFORE USING THE MACHINE a. Read this owner's manual carefully to understand how to operate this unit properly. b. This product has been designed for use in trimming leaves and branches from trees and hedges, and it should never be used for any other purpose since doing so could result in unforeseen accidents and injuries occurring. c.
English 3. SAFETY PRECAUTIONS g. Lack of sleep, tiredness, or physical exhaustion results in lower attention spans, and this in turn leads to accidents and injury. Limit the amount of time over which the hedge-trimmer is to be used continuously to somewhere around 30~40 minutes per session, and take 10~20 minutes of rest between work sessions. Also try to keep the total amount of work performed in a single day under 2 hours or less. h.
English 3. SAFETY PRECAUTIONS ■ WARNING CONSIDERING HANDLING OF FUEL a. The engine of this product is designed to run on a mixed fuel which contains highly flammable gasoline. You should never store cans of fuel or refill the fuel tank in any place where there is a boiler, stove, wood fire, electrical sparks, welding sparks, or any other source of heat or fire which might ignite the fuel. b. Smoking while operating the hedge-trimmer or refilling its fuel tank is extremely dangerous.
English 3. SAFETY PRECAUTIONS c. d. e. f. g. persons, always check the presence and locations of others so as to maintain a distance each person sufficient to ensure safety. Make sure that there are no loose screws or bolts, fuel leaks, ruptures, dents, or any other problems which might interfere with safe operation. Be especially careful to check that there is nothing wrong with the blades or with the joints by which the blades are attached to the hedgetrimmer.
English 3. SAFETY PRECAUTIONS ■ KICKBACK SAFETY PRECAUTIONS • A dangerous reaction may occur when the spinning blade contacts a solid object in the critical area. It is called Kick back. As a result, the operator can lose control of the unit which can cause serious or fatal injury. Avoid kickback, observe the safety precautions below strictly. 1. Keep the cutting blades clear of fances, posts, wires, and rocks to prevent kickback and damage to the blades. 2.
English 3. SAFETY PRECAUTIONS d. If the grass gets caught in the blade during operation, or if you need to check the unit or refuel the tank, always be sure to turn off the engine. e. If the blade touches a hard object like a stone, immediately stop the engine and check if something is wrong with the blade. If so, replace the blade by new one. f. If someone calls out while working ,always be sure to turn off the engine before turning around. g.
English 3. SAFETY PRECAUTIONS d. When sharpening, removing, or reattaching the blade, be sure to wear thick, sturdy gloves and use only proper tools and equipment to prevent injury. e. When replacing blade or any other parts or when replacing the oil or any lubricants, always be sure to use only KOMATSU ZENOAH products or products which have been certified by KOMATSU ZENOAH for use with the hedgetrimmer.
English 4. FUEL WARNING • Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel. • Wipe up all spills before starting the engine. • Make sure to stop the engine and allow it cool before refueling the unit. • Keep open flames away from the area where fuel is handled or stored. IMPORTANT • Never use oil for 4 cycle engine use or water cooled 2-cycle engine. It can cause spark plug fouling, exhaust port blocking, or piston ring sticking.
English 5. OPERATION F1 ■ STARTING THE ENGINE WARNING Keep the blades clear of everything around It as they will start moving upon the engine starts. 1. [eHT750S] Make sure that the throttle lever is at idling position. [eHT600D] Release the throttle lever and make sure it is fully back. (F1) 2. [eHT600D] Set the engine switch to the “I (RUN)” position. (F1) 3. Push the primer pump until overflown fuel flows out in the clear tube. (F2) 4. Move the choke lever to the closed position.
F1 F2 F3 F4 25
English 5. OPERATION ■ CUTTING WORK WARNING • Weather conditions and altitude may effect carburation. • Do not allow anyone to stay close to the hedge-trimmer while working or while adjusting the carburetor. ■ HOW TO USE F5 [eHT600D] HANDLE [eHT600D only] (F5) To reduce fatigue when trimming hedges, the handle can be swivelled through 90° to the left or right. Do not press the throttle during this operation! Proceed as follows: 1. Free the handle by pressing the locking lever. 2.
F5 (eHT600D) F6 F7 27
English 6. MAINTENANCE WARNING F8 Before cleaning, inspecting, or repairing the unit, make sure that the engine has stopped and is cool. ■ BLADE (F8) • Check the blade and the fasteners for looseness, cracking, or bending. • Check the cutting edges and reform with a flat file. F9 Point: 1. Keep the end corner sharp. 2. Round the root of the edge. 3. Do not use water when using a grinder.
F8 F9 F10 29
English 6. MAINTENANCE 3. Check if the safety lock returns to its original position when you release your hand from safety lock. If you find any defects at the checks above, contact your nearest servicing dealer for repair. F11 ■ ANTI-VIBRATION SYSTEM (F11) WARNING The deformed or damaged antivibration system may cause of the breakages like getting rickety or falling off of engine and/or blade. • [eHT750S] Check periodically if the rubber cushions are not deformed or damaged.
F11 F12 31
English 6. MAINTENANCE F13 F14 F15 ■ FUEL FILTER (F13) When the engine runs short of fuel supply, check the fuel strainer for blockage. ■ WAY OF THE COOLING AIR (F14) This engine is air-cooled. Dust clogging between the inlet port of the cooling air and cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover. ■ SPARK PLUG (F15) Starting failure and mis-firing are often caused by a fouled spark plug.
F13 F14 F15 33
English 6. MAINTENANCE F16 ■ GEARCASE (F16) Supply multi-purpose grease at every 20 hours of use. 1. Use a grease pump. 2. Feed grease until it comes out of the base of blades.(F16-a) F17 ■ ADJUSTING CARBURETOR (F17) The carburetor has been adjusted at the factory. Should your unit need readjustment due to the changes in altitude or operating conditions, please let your skillful dealer make the adjustment. A wrong adjustment may cause damage to your unit.
F16 F17 F18 35
English 6. MAINTENANCE ■ MUFFLER F19 AFTER 100 HOURS OF USE 1. Remove the muffler, insert a screwdriver into the vent, and wipe away any carbon buildup. Wipe away any carbon buildup on the muffler exhaust vent at the same time. (F19) (1) screw driver (2) muffler 2. Tighten all screws, bolts, and fittings. 3. Check to see if any oil or grease has worked its way in between the clutch lining and drum, and if it has wipe it away using oil-free, lead-free gasoline.
F19 F20 37
English 7. SPECIFICATIONS Model name .................. eHT750S [eHT600D] Type .......Single blade [Double-blade], double-action type Blade length .............................. 750 [600]mm Engine model ........................... Zenoah G20LH Displacement ......................................... 21.7cc Carburetor .......................... Diaphragm type Ignition system ........................................... C.D.I Spark plug ......................... Champion CJ6Y Fuel ..............................
Working for a better tomorrow Head Office: 1-9, Minamidai, Kawagoe-city, Saitama, 350-1192 Japan Telephone: (+81)492-43-1117 Telecopier: (+81)492-43-7197 PRINTED IN JAPAN
