Zenoah HTZ2400 manual

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. WARNING OWNER / OPERA T OR MANUAL HEDGE-TRIMMERS HTZ2400 CHTZ2400 Thank you for purchasing a RedMax product. Before using our hedge-trimmers, please read this manual carefully to understand the proper u[...]

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. ■ WARNINGS IN THE MANUAL This mark indicates i[...]

1. Parts location  3  1. Right handle 2. Fuel tank 3. Starter 4. Left handle 5. Throttle lever 6. Ignition switch 7. Throttle Cable 8. Muffler 9. Blade 10. Front handle 11. Rear handle[...]

 4  2. Specifications Engine Type ······················································································ Air-cooled 2-stroke gasoline Model ···················································[...]

(1) Read owner's manual before operating this machine. (2) Wear head, eye and ear protection. If warning label peel off or become soiled and impossible to read, you should contact the dealer from which you purchased the product to order new labels and affix them in the required location(s). Never modify your machine. We won't warrant the [...]

 6  5. For safe operation 1. Read this manual carefully until you completely understand and follow all safety and operating instructions. 2. Keep this manual handy so that you may refer to it later whenever any questions arise. Also note, if you have any questions which cannot be answered herein, contact the dealer from whom you purchased the[...]

b. At night, at times of heavy fog, or at any other times when your field of vision might be limited and it would be difficult to gain a clear view of the working area. c. During rain storms, during lightning storms, at times of strong or gale-force winds, or at any other times when weather conditions might make it unsafe to use the product. ■ WO[...]

 8  ■ BEFORE STARTING THE ENGINE 1. The area within a perimeter of 50 feet (15m) of the person using the product should be considered a hazardous area into which no one should enter. If necessary yellow warning rope, warning signs should be placed around the perimeter of the area. When work is to be performed simultaneously by two or more p[...]

Never place the throttle into the high speed position when starting the engine. 3. After starting the engine, check to make sure that the cutting attachment stops rotating when the throttle is moved fully back to its original position. If it continues to rotate even after the throttle has been moved fully back, turn off the engine and take the unit[...]

 10  • IF SOMEONE COMES 1. Guard against hazardous situations at all times. Warn adults to keep pets and children away from the area. Be careful if you are approached. Injury may result from flying debris. 2. If someone calls out or otherwise interrupts you while working, always be sure to turn off the engine before turning around. ■ MAIN[...]

5. For safe operation ■ HANDLING FUEL 1. The engine of the RedMax product is designed to run on a mixed fuel which contains highly flammable gasoline. Never store cans of fuel or refill the tank of the unit 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 ig[...]

 12  6. Fuel ■ RECOMMENDED MIXING RATIO GASOLINE 50:OIL 1 • Exhaust emission are controlled by the fundamental engine parameters and components(eq., carburation, ignition timing and port timing) without addition of any major hardware or the introduction of an inert material during combustion. • These engines are certified to operate on [...]

6. Fuel  13  again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger of early piston seizing due to abnormally lean mixture. 5. Put a clear indication on t[...]

 14  ■ STARTING ENGINE The cutting head will start rotating upon the engine starts. 1. 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. 2. Push the primer pump several times until overflown fuel flows out in the clear tube. (OP1)[...]

7. Operation 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 (OP3) 1. Release the throttl[...]

•W eather 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 HANDLE (CHTZ2400 only) To reduce fatigue when trimming hadges, the handle can be swivelled through 90° to the left or right. (OP7, OP8). Do not press the throttle dur[...]

7. Operation OP9 OP11 OP12 OP10  17  HEDGE TRIMMING TECHNIQUES Trim sides of a hedge first, and then the top. Vertical cut: •W ith the single-sided blade hedge-trimmer, model HTZ2400 always cut from the bottom up (OP9). With the 2-sided blade model CHTZ2400 use an arcing cut from the bottom upwards, then downwards to use both sides of the b[...]

 18  8. Maintenance every every every 25 50 100 system/compornent procedure before hours hours hours note use after after after fuel leaks, fuel spillage wipe out ✔ fuel tank, air filter, fuel filter inspect/clean ✔✔ replace, if necessary see ■ ADJUSTING replace carburetor idle adjusting screw ✔ IDLING SPEED (p.15) if necessary clea[...]

•M ake 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 be[...]

 20  ■ MUFFLER • Inspect periodically, the muffler for loose fasteners, any damage or corrosion. If any sign of exhaust leakage is found, stop using the machine and have it repaired immediately. • Note that failing to do so may result in the engine catching on fire. ■ INTAKE AIR COOLING VENT •N ever touch the cylinder, muffler, or s[...]

8. Maintenance ■ BLADES Oil blades each gas tank filling (MA5). • Make sure that the blade bolts are well tightened. • The blade assembly is designed to automatically compensate for any play between the blades. ■ SHARPENING (MA6) Always keep the file or sharpener at an angle of 45° to the blade, and: • Always grind in the direction of th[...]

10. T roubleshooting guide Case 1. Starting failure CHECK PROBABLE CAUSES ACTION fuel tank ➞ incorrect fuel ➞ drain it and with correct fuel fuel filter ➞ fuel filter is clogged ➞ clean carburetor adjustment screw ➞ out of normal range ➞ adjust to normal range sparking (no spark) ➞ spark plug is fouled/wet ➞ clean/dry ➞ plug gap i[...]

1 1. Parts list  23  NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company. 3. When placing parts orders for repair and/or replacement, check if the model[...]

1 1. Parts list  24  Fig.1 CUTTING UNIT HTZ2400 (S/N 40100101 and up) HTZ2400-L (S/N 40100101 and up)[...]

 25  Key# Part Number Description Q'ty 1 848-D3G-6501 BLADE ASSY 1 2 T4543-11110 • PLATE, upper 1 3 T4543-11120 • PLATE, lower 1 4 848-D3G-65A0 • BLADE, lower 1 5 848-D3G-65B0 • BLADE, upper 1 6 T4521-11311 • SPACER 9 7 T4520-11331 • SCREW 4 8 01252-30520 • BOLT 3 9 848-845-2500 • BOLT 2 10 T4531-11350 • NUT 5 11 T4543-[...]

1 1. Parts list  26  Fig.2 CUTTING UNIT CHTZ2400 (S/N 40100101 and up) CHTZ2400-L (S/N 40100101 and up)[...]

 27  Key# Part Number Description Q'ty 1 848-D4A-6501 BLADE ASSY 1 2 T4544-11110 • PLATE, upper 1 3 T4544-11120 • PLATE, lower 1 4 848-D4A-65A0 • BLADE 2 5 T4521-11311 • SPACER 8 6 T4520-11331 • SCREW 5 7 01252-30520 • BOLT 1 8 848-845-2500 • BOLT 2 9 T4531-11350 • NUT 6 10 T4543-11410 • PLATE 1 11 848-D30-66E1 • BRAC[...]

Fig.3 ENGINE UNIT HTZ2400/CHTZ2400 (S/N 50100000 and up) HTZ2400-L/CHTZ2400-L (S/N 50100000 and up)  28  1 1. Parts list[...]

 29  Key# Part Number Description Q'ty 1 T1551-12110 CYLINDER 1 2 848-F01-12B0 GASKET, base 1 3 4820-12130 BOLT TORX M5XL22 T27 4 4 848-F00-14A2 INSULATOR 1 5 T1551-13121 GASKET, insu 1 6 T1551-13131 GASKET, carb 1 7 T4950-52001 BOLT TORX M5xL20 T27 4 8 T1551-16110 COVER, tr 2 9 T1551-16142 GASKET, tr 2 10 4820-16310 BOLT TORX M4xL10 T27[...]

EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, KOMATSU ZENOAH AMERICA INC. (THE COMPANY), THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH SUBSEQUENT PURCHASER, ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP. EMISSION-RELATED PARTS ARE: TH[...]

Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., par l'intermédiaire de n'importe quel revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour l'acheteur initial et chaque acheteur successif toute(s) pièce(s) se révélant de constitution et/ou de montage défectueux [...]

KOMATSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 ©P rinted in Japan[...]