Makita DPC7321HD manual

1 W ARNING! Read and understand this Manual. Always follow safety precautions in the Instruction and Safety Manual. Improper use can cause serious injury! The engine exhaust from this product contains chemicals known to the State of California to cause cancer , birth defects or other reproductive harm. Preserve this Manual carefully! Instruction an[...]

2 EMISSIONS COMPONENT DEFECT W ARRANTY COVERAGE MAKIT A U.S.A, Inc warrant to the initial retail purchaser and each subsequent owner , that this utility equipment was designed, built, and equipped to conform at the time of initial sale to all applicable regulations of the U.S. Environmental Protection Agency (EP A), and that the engine is free of d[...]

3 T able of contents Page Packing ................................................................................ 3 Delivery inventory .............................................................. 4 Symbols ............................................................................... 4 SAFETY PRECAUTIONS Intended use ...........................[...]

4 5 4 3 2 1 Symbols Y ou will notice the following symbols on the saw and in the Instruction Manual: In case one of the parts listed should not be included in the delivery inventory , please consult your sales agent. Delivery inventory 1. Power Cut 2. Cutting disc 3. Screwdriver (for carburetor adjustment) 4. Offset screwdriver 5. Universal wrench [...]

5 F E 2 3 1 4 SAFETY PRECAUTIONS Intended use Power Cut Use the Power Cut cutof f saw outdoors only , for trimming and cutting suitable materials, using cutting discs rated for this machine. Improper use: Never use the cutoff saw cutting discs for grinding or sanding (using the side of the cutting disc to remove material). The disc can break! Never[...]

6 H G 7 6 5 9 8 30 m (100 feet) 3 meters (10 feet) = w e ar i ng P ro t ec t iv e E q ui p m en t - Always wear safety shoes or boots (G) with steel toes, non-skid soles, and leg protectors when working with the Power Cut. Safety shoes equipped with a protective layer provide protection against cuts and ensure a secure footing. - Always wear a work[...]

7 10 1 1 13 12 14 ● Maintenance ● Refuelling ● Changing cutoff discs ● Repositioning the cutting attachment ● Stopping work ● T ransport ● Putting out of function S T O P min. 5 m (16 feet) Cu to ff di sc s - The pr ote cti on hoo d mus t alw ay s be on ! Ch ang e di scs on ly wi th the en gin e o ff! - The re are tw[...]

8 18 16 17 15 Kickback and lock-in - When working with the Power Cut there is a danger of kickback and lock-in. - Kickback occurs when the top of the cutting disc is used for cutting (15). - This causes the Power Cut to be thrown back toward the user with great force and out of control. Risk of injury! T o prevent kickback, observe the following: -[...]

9 19 20 21 Whe n usin g syn the tic r esi n cut tin g discs , a lwa ys ob - ser ve the f oll owing : CAU TIO N : - Synth etic resin cu tti ng dis cs can abso rb moist ure. This moi stu re can ca use the disc t o becom e unb alanc ed at hig h spe ed. This im balanc e can ca use t he dis c to bre ak. - Do no t coo l r esin cut tin g dis cs wit h wat [...]

10 23 26 25 24 In wet cutting, the disc is wetted at an equal rate on both sides by a trickle of water . MAKIT A offers the right accessories for all wet cutting applications (see also "SPECIAL ACCESSORIES"). - Remove foreign objects such as sand, stones and nails found within the working area. Caution: Watch out for electric wires and ca[...]

1 1 27 28 29 SERVICE Maintenance - Before performing maintenance work switch off the Power Cut (27) and pull out the plug cap. - Allow the Power Cut to cool off before doing any mainte- nance work (burn hazard)! - Always check the Power Cut before using it to make sure that it is in good working order . In particular , make sure that the cutting di[...]

12 Denomination of components 1 Handle 2 Filter cover for air lter and spark plug cap 3 Cover lock 4 T ubular handle 5 Mufer 6 Protection hood 7 Grip 8 V -belt tension adjusting screw 9 Retaining nuts 10 Stand 1 1 Carburetor adjustment opening 12 Identication plate 13 Fuel tank with handle 14 Decompression valve 15 Starter grip 16 Air inta[...]

13 5 5 7 7 9 8 Place the spring washer ( 8 ) on the arbour and insert the screw ( C/9 ) and tighten by hand. T urn the disc slowly until the stop hole of the V -belt pulley is visible in the cutting arm cover ( 10 ). Insert the Allen key ( 2 ) as far as it will go. The shaft is now blocked. T ighten the screw with the combination wrench ( 1 ) NOTE:[...]

14 1.0 Us-gal. (3.7 l) 2.6 oz. (75 cm 3 ) 2.5 Us-gal. (9.4 l) 6.4 oz. (189 cm 3 ) 5.0 Us-gal. (18.9 l) 12.8 oz. (378 cm 3 ) 1 1 12 14 13 E F NOTE: The two fastening nuts ( 1 1 ) must be loosened before tightening the V -belt or checking the tension. T o increase the belt tension, turn the tightening screw ( 12 ) to the right (clockwise) wi[...]

15 MAKIT A HP 100 high-performance two-stroke engine oil is available in the following sizes to suit your individual require- ments: 0,5 l order number 980 008 609 MAKIT A high-performance two-stroke engine oil (50:1) is available in the following sizes to suit your individual require- ments: 100 ml order number 980 008 606 1 l order number 980 008[...]

16 Starting the engine This model is tted with a semiautomatic decompression valve ( 1 ) to make starting easier . Depressing it reduces the force needed for compression, so little force is needed to accelerate the engine to its starting speed. The high pressure in the combustion chamber after the rst ignition automatically closes the decompr[...]

17 H Stopping the engine Push the combination switch ( 1 ) down to position . STOP 10 Grasp the tubular handle rmly with one hand and press the Power Cut against the ground. Place the tip of your left foot in the rear handle. Pull the starter cable strong and rapidly until you hear the rst audible ignition. CAUTION: Do not pull out the starte[...]

18 Adjusting the carburetor NOTE: The grinding parts are equipped with an electronic ignition to limit the speed. At the factory the idling speed has been set to approx. 2,500 1/min., but the running-in process of a new engine may require slight readjustment of the idling speed. A For correct adjustment of the idling speed the following steps must [...]

19 8 9 10 2 1 3 4 7 6 5 A MAINTENANCE CAUTION: Before doing any work on the Power Cut turn off the engine, remove the cutting disc, pull the plug cap off the spark plug and wear protective gloves! CAUTION: Start the Power Cut only after complete assembly and inspection. B IMPORT ANT : Because many of the parts and assemblies not mentioned in this I[...]

20 1 1 12 E Cleaning the protection hood Over time, the inside of the protective hood can become caked with material residue (especially from wet cutting), which if allowed to accumulate can hinder the free rotation of the cut- ting disc. For this reason the hood must be cleaned out from time to time. T ake off the cutting wheel with spring washer [...]

21 Replacing the spark plug CAUTION : Do not touch the spark plug or plug cap if the engine is running (high voltage). Switch off the engine before starting any maintenance work. A hot engine can cause burns. Wear protective gloves! The spark plug must be replaced in case of damage to the insulator , electrode erosion (burn) or if the electrodes ar[...]

22 22 23 19 21 20 STOP 9 10 1 1 Checking the ignition spark Insert the combination wrench ( 9 ) between the hood and cyl- inder only as shown. CAUTION! Do not insert the combination tool into the spark plug hole, but make contact only with the cylinder (otherwise you may damage the engine). Using insulated pliers, hold the spark plug ( 10 ) (unscre[...]

23 A 24 25 26 R ep la c in g t he r e tu rn sp ri n g Re mov e t he sta rte r h ous in g ( see “R epl aci ng the st art er ca ble ”). T ake the air guide off the starter housing (see “Replacing the starter cable”). T ake off circlip ( 1 ) (circlip pliers, see “Accessories”). Remove the cable pulley ( 2 ). Unscrew screw ( 3 ). Evenly lev[...]

24 3 4 5 6 7 Cutting attachment in central / side position NOTE: The Power Cut is delivered with the cutting attachment mounted in the middle position ( 1 ). For cutting up against ob- stacles, such as curbs or walls, the cutting attachment can be mounted to one side ( 2 ). Use this position only when actually necessary , and afterwards return the [...]

25 15 17 16 Put the guard plate ( 15 ) on. Screw on nuts ( 16 ) and tighten by hand. T o tighten the V -belt see ”Tightening the V -belt / Checking V - belt tension”. T ighten the nuts ( 16 ) rmly with the combination wrench. Replace the grip ( 17 ) as shown. IMPORT ANT : When you reposition the cutting attachment, the direction of rotation [...]

26 Diamond cutting discs (1) MAKIT A diamond cutting discs meet the highest demands in working safety , ease of operation, and economical cut- ting performance. They can be used for cutting all materials except metal . The high durability of the diamond grains ensures low wear and thereby a very long service life with almost no change in disc diame[...]

27 General Entire Power Cut Clean exterior , check for damage. In case of damage, have repaired by a qualied service center immediately Cutting disc Inspect regularly for damage and wear . 7 Clutch Have inspected at a service center . Protection hood Clean, Check position (impact plate) 16 Before each start Cutting disc Inspect for damage and ma[...]

28 T roubleshooting Malfunction System Observation Cause Cutting disc does not start turning Clutch Engine runs Damage to clutch Cutting disc runs in idle Carburetor , Cutting disc runs Incorrect idle speed, clutch blocked clutch Engine does not start or Ignition system Ignition spark Malfunction in fuel supply system, com- only with difculty pr[...]

29 Extract from the spare parts list Use only original MAKIT A parts. For repairs and replacement of other parts, see your MAKIT A service center . DPC731 1HD DPC7321HD 25 24 22 27 26 28 (4x) Accessories (not delivered with the Power Cut) Diamond cutting disc 14"/1.0" 22 966 244 020 1 Concrete Standard, dia. 350/25,4 mm 22 966 344 020 1 C[...]

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32 Specications subject to change without notice Form: 995 704 755 (1 1.07 GB) T o nd your local distributor , please visit www .makita-outdoor .com Makita U.S.A., Inc. 14930 Northam Street La Mirada, CA 90638-5753[...]