Husqvarna K750 manual Diamond blades for wet cutting, Diamond blades for dry cutting, Material

Page 12

SAFETY INSTRUCTIONS

Ensure the blade it not cracked or damaged in any other way.

Test the abrasive disc by hanging it on your finger and tapping it lightly with a screwdriver or the like. If the disc does not produce a resonant, ringing sound it is damaged.

Diamond blades

Diamond blades consist of a steel body provided with segments that contain industrial diamonds.

Diamond blades ensure lower costs per cutting operation, fewer blade changes and a constant cutting depth.

When using diamond blades make sure that it rotates in the direction indicated by the arrow on the blade.

Always use a sharp diamond blade. Sharpen the blade by cutting in a soft material such as sandstone or brick.

Diamond blades are available in several hardness classes. A "soft" diamond blade has a relatively short service life and large cutting capacity. It is used for hard materials such as granite and hard concrete. A "hard" diamond blade has a longer service life and reduced cutting capacity, and should be used for soft materials such as brick and asphalt.

Material

Diamond blades are ideal for masonry, reinforced concrete and other composite materials. Diamond blades are not recommended for cutting metal.

Diamond blades for wet cutting

WARNING! Cool diamond blades for wet

!cutting continuously with water to prevent overheating, which can cause the blade to break up and eject pieces that can cause injury.

Diamond blades for wet cutting should have water poured over them during the cutting to cool the blade and bond the dust.

Diamond blades for dry cutting

Diamond blades for dry cutting are a new generation of blades that do not require water cooling. However, the blades will still be damaged by excessive heat. It is most economical to allow the blade to cool by simply lifting it out from the cut every 30–60 seconds and letting it rotate in the air for 10 seconds.

12 – English

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Contents K750 KEY to Symbols Key to symbolsContents What is WHAT? What is what on the power cutter?Safety Instructions Steps before using a new power cutterPersonal protective equipment Machine′s safety equipment Checking the blade guard General safety precautions Fuel safetyTransport and storage Refuelling/Fuel mixture/StorageBasic safety rules General working instructionsCutting GeneralHow to avoid kickback Cutting blades GeneralAbrasive discs Diamond blades Diamond blades for wet cuttingDiamond blades for dry cutting MaterialAssembly Checking the drive axle and flange washersFitting the cutting blade Guard for the bladeFuel Handling FuelFuelling Starting and Stopping Starting and stoppingMaintenance Tensioning the drive beltReplacing the drive belt Belt pulley and clutchFuel filter Air filterStarter Changing a broken or worn starter cordTensioning the recoil spring Changing a broken recoil springSpark plug Cooling systemMuffler Fitting the starterGeneral maintenance instructions Daily maintenanceWeekly maintenance Monthly maintenanceTechnical Data Cutting equipmentEC-declaration of conformity Applies to Europe onlyPage 1150287-26 ´z+Rh¶6¨ ´z+Rh¶6¨
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