Instruction and Safety Manual for Gasoline Power Cuts DPC7311HD DPC7321HD WARNING! 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.
EMISSIONS COMPONENT DEFECT WARRANTY COVERAGE MAKITA 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 (EPA), and that the engine is free of defects in materials and workmanship which would cause this engine to fail to conform with EPA regulations during its warranty period.
Thank you for purchasing a MAKITA product! Congratulations on choosing a MAKITA Power Cut cutoff saw! We are confident that you will be satisfied with this modern piece of equipment. Like our chain saws, the MAKITA Power Cuts feature specially designed high‑performance engines with outstanding power‑to‑weight ratios, for heavy‑duty yet lightweight tools. Other advantages of the MAKITA Power Cuts: • Sturdy construction and high reliability.
Delivery inventory 5 4 3 2 1 1. Power Cut 2. Cutting disc 3. Screwdriver (for carburetor adjustment) 4. Offset screwdriver 5. Universal wrench 13/19 6. Instruction manual (not shown) In case one of the parts listed should not be included in the delivery inventory, please consult your sales agent.
SAFETY PRECAUTIONS Intended use Power Cut Use the Power Cut cutoff 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 use the Power Cut with saw blades, cutter blades, brushes, carbide tipped, wood cutting blades etc.
- - 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 suit (H) of tough material with sufficient flame-retardant qualities whenever working with the cutoff saw. G H Fuels / Refuelling - Go to a safe, level place before refuelling.
Cutoff discs - The protection hood must always be on! Change discs only with the engine off! There are two basic types of cutoff discs: - For metal (hot cutting) - For masonry (cold cutting) WARNING! Never use carbide tipped, circular saw blades or any kind of wood cutting blades. Never cut any type of wood. Reactive forces can cause severe personal injury from blade contact or thrown tips. NOTE: When using diamond cutoff discs, always make sure to observe the "direction of rotation" markings.
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! To prevent kickback, observe the following: Never cut with the section of the cutting disc shown in figure 15.
When using synthetic resin cutting discs, always observe the following: CAUTION: - Synthetic resin cutting discs can absorb moisture. This moisture can cause the disc to become unbalanced at high speed. This imbalance can cause the disc to break. Do not cool resin cutting discs with water or other fluids. Do not expose resin cutting discs to high humidity or rain! Do not use resin cutting discs past their use-by date (expiration date)! The date (quarter and year) is stamped on the disc’s arbor ring.
In wet cutting, the disc is wetted at an equal rate on both sides by a trickle of water. MAKITA 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 cables! The rapid rotation of the cutting disc at the point of contact throws fragments out of the cut groove at high speed.
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 maintenance 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 disc is properly mounted. Make sure that the cutting wheel is undamaged and suitable for the job it will be used for. Operate the Power Cut only at a low noise and emission level.
Technical data DPC7311HD, DPC7321HD Displacement cu in (cm3) 4,5 (73) Bore in (mm) 1,97 (50) Stroke in (mm) 1,46 (37) Max. power hp (kW) 5,6 (4,2) Max. torque Nm 5,0 Idling speed rpm 2.500 Clutch engagement speed rpm 3.800 Engine speed limitation rpm 9.350 Max. spindle speed rpm 4.
Putting into operation CAUTION: Always turn off the engine and pull off the spark plug cap before doing any work on the Power Cut! Always wear protective gloves! CAUTION: Start the Power Cut only after complete assembly and inspection. A For the the following work, use the assembly tools included with delivery: 1. 13/19 AF combination wrench 2. Allen key 3.
Tightening the V-belt / Checking V-belt tension IMPORTANT: Exact V‑belt tension is essential for maximum cutting performance with minimum fuel consumption. Improper V‑belt tension will result in premature wear to the V‑belt and V‑belt wheel or damage to the clutch bearing. If the Power Cut is new or the V-belt has been replaced, retighten the V-belt after the first hour of operation! E NOTE: The two fastening nuts (11) must be loosened before tightening the V-belt or checking the tension.
MAKITA HP 100 high-performance two-stroke engine oil is available in the following sizes to suit your individual requirements: 0,5 l order number 980 008 609 MAKITA high-performance two-stroke engine oil (50:1) is available in the following sizes to suit your individual requirements: 100 ml order number 980 008 606 1 l order number 980 008 607 NOTE: For preparing the fuel-oil mixture first mix the entire oil quantity with half of the fuel required, then add the remaining fuel.
Starting the engine 1 if necessary This model is fitted 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 first ignition automatically closes the decompression valve (button pops out).
Grasp the tubular handle firmly 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 first audible ignition. Caution: Do not pull out the starter cable more than approx. 50 cm, and lead it back by hand. Depress decompression valve (F/5) again. Put the combination switch (F/6) in position “I”. Keep pulling the starter cable until the engine catches.
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 be carried out: Start the engine and run it until it is warm (about 3 - 5 minutes). 2 1 B Adjust the carburetor with the screwdriver (1, Order No.
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.
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 cutting disc. For this reason the hood must be cleaned out from time to time. Take off the cutting wheel with spring washer and remove the accumulated material from inside the hood with a strip of wood or similar implement. Clean the shaft and all removed parts.
Pre-filter (foam) and inner filter CAUTION: Never clean out the air filter with compressed air! Do not clean the pre-filter and inner filter with fual. If the pre-filter (1) and inner filter (3) are dirty, wash them out in lukewarm water with regular dishwashing liquid. Dry pre-filter and inner filter thoroughly. NOTE: The pre-filter needs cleaning at least daily, or more often if the Power Cut is used in very dusty conditions. If cleaning onsite is not possible, keep a replacement pre-filter on hand.
Checking the ignition spark Insert the combination wrench (9) between the hood and cylinder 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) (unscrewed but with the plug cap on) against the combination tool (away from the spark plug hole!). STOP 11 10 9 Switch the combination switch (11) to ”I”. Pull the starter cable hard.
Guide the cable into the recess (24) on the cable drum and use the cable to turn the drum two turns in the direction shown by the arrow. Holding the cable drum in your left hand, straighten out the twist in the cable with your right hand, pull the cable tight, and hold. Release the cable drum. The drum´s spring force will now wind the cable around the drum. Repeat three times. The starter grip must be upright on the starter housing.
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 obstacles, 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 cutting attachment to the middle position. In this position the Power Cut has better balance, is easier to guide, and is not as fatiguing for the operator.
Press the cutting attachment (12) onto the drive arm in the side position. Guide the V-belt (13) over the V-belt pulley (14). F 12 14 13 Put the guard plate (15) on. 17 Screw on nuts (16) and tighten by hand. To tighten the V-belt see ”Tightening the V-belt / Checking Vbelt tension”. Tighten the nuts (16) firmly with the combination wrench. Replace the grip (17) as shown. IMPORTANT: When you reposition the cutting attachment, the direction of rotation of the cutting wheel changes.
SPECIAL ACCESSORIES Diamond cutting discs (1) Water tank (5) MAKITA diamond cutting discs meet the highest demands in working safety, ease of operation, and economical cutting performance. They can be used for cutting all materials except metal. The water tank is designed to be mounted on the guide trolley. Its high capacity makes it especially suitable for situations involving frequent site changes. For filling or for fast changing to reserve tanks, the tank can be simply lifted off the trolley.
Instructions for periodic maintenance To ensure long life, prevent damage and ensure the full functioning of the safety features the following maintenance must be performed regularly. Guarantee claims can be recognized only if this work is performed regularly and properly. Failure to perform the prescribed maintenance work can lead to accidents! Users of the Power Cut must not perform any maintenance work not described in this Instruction Manual.
Guarantee MAKITA guarantees the highest quality and will therefore reimburse all costs for repair by replacement of damaged parts resulting from material or production faults occurring within the guarantee period after purchase. Please note that in some countries particular guarantee conditions may exist. If you have any questions, please contact your salesman, who is responsible for the guarantee of the product.
Extract from the spare parts list DPC7311HD Use only original MAKITA parts. For repairs and DPC7321HD replacement of other parts, see your MAKITA service center. Pos. MAKITA-No. Qty.
14930 Northam Street La Mirada, 32 CA 90638-5753 Form: 995 704 755 (11.07 GB) Makita U.S.A., Inc. Specifications subject to change without notice To find your local distributor, please visit www.makita-outdoor.