Makita EK6100 Instruction Manual

Also see for EK6100: Operator's and safety manual

8When using synthetic resin cutting discs, always ob-serve the following:CAUTION:- Synthetic resin cutting discs can absorb moisture. Thismoisture can cause the disc to become unbalanced at highspeed. 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 orrain!Do not use resin cutting discs past their use-by date (expira-tion date)! The date (quarter and year) is stamped on the discísarbor ring.EXAMPLE: 04 / 2015This cutting disc can be used through the end of the fourth quarterof 2015, if properly stored and correctly used.Cutting metalsIMPORTANT!Always wear approved respiratory protection!Materials that can release toxic substances may be cut onlyafter notifying the proper authorities and under their supervi-sion or that of a person appointed by them.CAUTION!The rapid rotation of the cutting disc heats metal and melts itat the point of contact. Swing the guard as far down as pos-sible (19) in order to direct the stream of sparks forward, awayfrom the operator (fire hazard).- Determine the cut line, mark the cut and apply the disc to thematerial at moderate speed, to cut a guide groove before goingto top speed and applying more pressure to the Power Cut.- Keep the disc straight and vertical. Do not tip it, as this canbreak it.- The best way to get a good, clean cut is to pull or move thePower Cut back and forth. Do not simply press the disc intothe material.- Thick round stock is best cut in stages (20).- Thin tubing and pipes can be cut with a simple downwardcut.- Cut large-diameter pipes as for round stock. To prevent tippingand for better control, do not let the disc sink too deeply intothe material. Instead, always cut shallow around the wholepiece.- Worn discs have a smaller diameter than new discs, so that atthe same engine speed they have a lower effective circumfer-ential speed and therefore do not cut as well.- Cut I-beams and L-bars in steps; see Figure 21.- Cut bands and plates like pipes: along the wide side with a longcut.- When cutting material under stress (supported material or mate-rial in structures), always make a notch in the thrust (pressure)side, and then cut from the tension side, so that the disc doesnot lock in. Secure cutoff material from falling!CAUTION!If there is a chance that the material is under stress, be pre-pared for it to kick back. Make sure you can get out of theway if you have to!Be particularly careful in scrap-metal yards, junkyards, at ac-cident sites, and with haphazard piles of material. Precariouslybalanced pieces or pieces under stress can act in unpredictableways, and may slide, jump out, or burst. Secure cutoff materialfrom falling! Always exercise extreme caution and use onlyequipment that is in perfect working order.Observe the accident-prevention rules and regulations of youremployer and/or insurance organization.192021Cutting masonry and concreteIMPORTANT!Always wear approved respiratory protection!Asbestos and other materials that can release toxic sub-stances may be cut only after notifying the proper authoritiesand under their supervision or that of a person appointedby them. When cutting prestressed and reinforced concretepiles, follow the instructions and standards of the respon-sible authorities or the builder of the structural member.Reinforcement rods must be cut in the prescribed sequenceand in accordance with applicable safety regulations.NOTE:Mortar, stone, and concrete develop large quantities of dust duringcutting. To increase the lifetime of the cutting disc (by cooling),to improve visibility, and to avoid excessive dust creation, westrongly recommend wet cutting instead of dry cutting.