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RedMax SRTZ2500 - page 1
OWNER / OPERA T OR MANUAL SHOR T REA CH TRIMMER T3075-93110(003) SRTZ2500 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. W ARNING Before using our trimmers, please read this manual carefully to understand the proper use of your unit. W ARNING DR ...
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RedMax SRTZ2500 - page 2
INFORMA TION This machine is equipped with an Overload Cancellation Mechanism. When the cutting blades have got into metal wires or those twigs difficult to cut, the mechanism acts as a shock absorber , and protects the drive gears and the blades from severe reaction which could give damage to those parts. When the blades are frequently caught by t ...
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RedMax SRTZ2500 - page 3
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 ...
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RedMax SRTZ2500 - page 4
1. Parts location 1. Loop handle 2. Shoulder strap hanger 3. Ignition switch 4. Throttle cable 5. Throttle lever 6. Throttle set button 7. Drive shaft housing 8. Blade 9. Gear case 10. Spark arrester 11. Starter knob 12. Fuel tank 13. Primer pump 14. Choke lever 15. Air cleaner cover ❲ 4 ❳ ...
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RedMax SRTZ2500 - page 5
2. Specifications ■ SRTZ2500 Overall size(LxWxH) ························································ 67.9(1725)x9.8(250)x12.2(310) in(mm) Dry weight w/o acc. ································································? ...
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RedMax SRTZ2500 - page 6
❲ 6 ❳ (1) Read owner's manual before operating this machine. (2) Wear head, eye and ear protection. ( 3 ) Handling this machine improperly could result in accidents causing serious injury or death. Read this manual carefully and practice using the trimmer until you are fully acquainted with all operations and have learned to use it correct ...
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RedMax SRTZ2500 - page 7
❲ 7 ❳ 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) The direction to open the choke Position: ...
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RedMax SRTZ2500 - page 8
❲ 8 ❳ 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 th ...
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RedMax SRTZ2500 - page 9
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 ...
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RedMax SRTZ2500 - page 10
❲ 10 ❳ ■ 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 ...
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RedMax SRTZ2500 - page 11
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 ...
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RedMax SRTZ2500 - page 12
❲ 12 ❳ • 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 ...
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RedMax SRTZ2500 - page 13
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 ...
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RedMax SRTZ2500 - page 14
❲ 14 ❳ ■ MOUNTING ENGINE (SE1) 1. Push the driveshaft housing toward the clutch housing and rotate it by hand to check that the driveshaft is engaged with the gears. 2 . Insert the driveshaft housing into the clutch housing until it bottoms, and align the positioning holes on the clutch housing and the shaft tube and install the screw. When d ...
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RedMax SRTZ2500 - page 15
6. Set up SE4 ■ ATTACHING THE TRIMMING MECHANISM (SE4) 1. Remove the cap on the end of the main pipe. 2. Remove the screw screwed into the end of the trimming mechanism. 3. Insert the end of the trimming mechanism into the main pipe. 4 . Line up the hole on the end of the trimming mechanism into which the screw is to be inserted with the hole on ...
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RedMax SRTZ2500 - page 16
❲ 16 ❳ • Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel. Make sure to stop the engine and allow it cool before refueling the unit. Select outdoor bare ground for fueling and move at least 3m(10ft) away from the fueling point before starting the engine. • The RedMax engines are lubricated by oil specially ...
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RedMax SRTZ2500 - page 17
container to avoid mixing up with gasoline or other containers. 6. Indicate the contents on outside of container for easy identification. ■ FUELING THE UNIT 1. Untwist and remove the fuel cap. Rest the cap on a dustless place. 2 . Put fuel into the fuel tank to 80% of the full capacity. 3. Fasten the fuel cap securely and wipe up any fuel spillag ...
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RedMax SRTZ2500 - page 18
❲ 18 ❳ ■ 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. (OP ...
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RedMax SRTZ2500 - page 19
8. Operation ■ STOPPING ENGINE (OP3) 1. Release the throttle lever and run the engine for a half minute. 2. Shift the ignition switch to the STOP position. • Except for an emergency, avoid stopping the engine while pulling the throttle lever. ■ ADJUSTING THROTTLE CABLE • The normal play is 1 or 2mm when measured at the carburetor side end. ...
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RedMax SRTZ2500 - page 20
❲ 20 ❳ handling can cause accidents which may in turn lead to serious injury or death. For this reason, you should always be careful to follow the following instructions when using your trimmer. • Never hold the trimmer in a way in which the blades are pointed towards someone else. • Never allow the blades to come into proximity with your b ...
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RedMax SRTZ2500 - page 21
9. Maintenance ■ BLADES (MA1) • When refilling the tank or resting, it is often a good idea to use the time to oil the cutting blades. • If a gap exists between the upper and lower blades, follow the procedure below to adjust them so that they fit more closely together. 1. Loosen lock nut (A) as shown in the diagram. 2. Tighten screw (B) full ...
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RedMax SRTZ2500 - page 22
❲ 22 ❳ QUICK TIP If the blades become so worn down that it is no longer possible to eliminate the gap between them, you should contact the authorized RedMax servicing dealer from which you purchased your RedMax® trimmer to have the blades resharpened or replaced. ■ GEAR CASE The reduction gears are lubricated by multipurpose, lithium-based g ...
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RedMax SRTZ2500 - page 23
■ SPARK PLUG • Starting failure and mis-firing 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 RedMax. (MA5) • REPLACEMENT PLUG IS A NGK CMR7A. • Note that using any spark plug other than those designated may result i ...
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RedMax SRTZ2500 - page 24
❲ 24 ❳ 9. Maintenance ■ INTAKE AIR COOLING VENT • Never touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns. • When checking the machine to make sure that it is okay before using it, check the are ...
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RedMax SRTZ2500 - page 25
10. Storage • Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary measures for rust prevention. ❲ 25 ❳ ...
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RedMax SRTZ2500 - page 26
❲ 26 ❳ 1 1. 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 ? ...
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RedMax SRTZ2500 - page 27
12. Parts list 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 name and th ...
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RedMax SRTZ2500 - page 28
12. Parts list ❲ 28 ❳ Fig.1 DRIVE UNIT SRTZ2500 (S/N 000000 and up) Fig.2 CUTTING UNIT SRTZ2500 (S/N 000000 and up) ...
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RedMax SRTZ2500 - page 29
Fig.2 CUTTING UNIT SRTZ2500 (S/N 000000 and up) Fig.1 DRIVE UNIT SRTZ2500 (S/N 000000 and up) Key# Description Part Number Q'ty 1 PIPE-COMP T3075-12100 1 2 SHAFT T3075-12210 1 3 GRIP 3577-32141 1 4 LEVER-COMP T3065-12200 1 5 • LEVER COMP. T3065-12200 1 6 • CORD(A), black T3002-12220 1 7 • CORD(B), red T3002-12230 1 8 TUBE T3002-12240 1 9 ...
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RedMax SRTZ2500 - page 30
Fig.3 ENGINE UNIT SRTZ2500 (S/N 000479 and up) ❲ 30 ❳ 12. Parts list ...
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RedMax SRTZ2500 - page 31
Fig.3 ENGINE UNIT SRTZ2500 (S/N 000479 and up) ❲ 31 ❳ Key# Description Part Number Q'ty 1 CYLINDER 4810-12111 1 2 GASKET, base 4810-12210 1 3 BOLT 1850-12130 2 4 INSULATOR 4810-13161 1 5 GASKET, insulator 4810-13120 1 6 GASKET, carburetor 4810-13130 1 7 SCREW 00263-90520 1 8 REEDVALVE (S)-A 4810-16100 1 9 • VALVECASE (S) 4810-16110 1 10 ...
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RedMax SRTZ2500 - page 32
The California Air Resources Board and KOMATSU ZENOAH are pleased to explain the emission control system warranty on your 1995 and later small off-road engine. In California, new small off-road engines must be designed, built and equipped to meet the state’s stringent anti-smog standards. KOMATSU ZENOAH must warrant the emission control system on ...
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RedMax SRTZ2500 - page 33
KOMATSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE MODEL SRTZ2500 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, ...
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RedMax SRTZ2500 - page 34
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 ...
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RedMax SRTZ2500 - page 35
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RedMax SRTZ2500 - page 36
KOMATSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 © Printed in Japan ...
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