Owner’s ManualPROFESSIONAL CUTTING HEADSISM, Inc. • 1028 4th St. SW • Auburn, WA 98001 • Phone: (253) 333-1200 • Fax: (253) 333-1212 • www.tanakapowerequipment.comSafety Instructions1.) *Warning! Read this owners manual as well asthe owners manual supplied with your grass trimmer.Be sure to follow all warnings and safety instructions.Failure to do so can result in serious injury to theoperator and/or bystanders.2.) Wear eye protection that complies with ANSIZ87-1 standard.3.) Do not operate this or any type of powerequipment when you are tired, ill, or under theinfluence of alcohol, drugs, or medication.4.) Always wear heavy long pants, boots, andgloves. Do not wear loose clothing, short pants,sandals, or go bare foot. Secure hair so it is aboveshoulder level.5.) Inspect unit before each use. Replace parts thatmay be cracked, chipped, or damaged in any way.Make sure the cutting head is properly installed andsecurely fastened. Be sure the cutting attachmentshield is properly attached in the position recom-mended by the manufacturer.6.) Clear the work area before each use. Removeall objects such as rocks, broken glass, nails, wire,or string which can be thrown or become entangledin the cutting head. Clear the area of children,bystanders, and pets in a 50 foot (15m) radius. It isrecommended that bystanders wear eye protection.If you are approached, stop the engine and cuttingattachment immediately.FIXED LINEITEM NUMBER746280MANUAL FEEDITEM NUMBER746290AluminumCutting HeadsInstallation (continued)This shoulder is necessary to mount these headssecurely and in the proper position. The diameter ofmany mounting shoulders is 1” (25.4mm) and bothheads require this size. For mounting shoulder diam-eters that are .79” (20mm), a special shim is includedin the package contents to provide the necessaryspacing.A variety of adapters are provided to accommodatemounting to Tanaka as well as other units (seesizes listed below). To mount the “Fixed Line”head, (Ref. 1), place the recessed side on to themounting shoulder of the gear case. When usingthe 8mm nut, always use the 10mm washer.The “Manual Feed” headis mounted in the samemanner, except that the“Cutter Holder” (Ref. 2-4show below) must alwaysbe used as shown in Ref.2A & 2B.1-1 1-21-32-1 2-22-3 2-4Aluminum Cutting Head Mounting Hardware746280 / Fixed Line 746290 / Manual FeedInstallationThe Aluminum Cutting Headsare designed for use onstraight shaft Grass Trim-mers and they are mounted tothe unit in the same manner.Typically, the gear case has aseparate piece or cover whichincludes a mounting shoulderon which blades are held andcentered.WARNING!These heads areNOT RECOMMENDEDfor use on units without amounting shoulderRef. 1Ref. 2ARef. 2BRef.# Part No. Description2-1 312-33386-20 Adapter Bolt(8mm x 1.25 LHM)2-2 313-38100-20 Adapter Nut(10mm x 1.25 LHF)2-3 27288 Mounting Shim(20mm to 1")2-4 311-37300-203 Cutter Holder(#29592 - Page 1)1-4Ref.# Part No. Descr ipt io n1-2 312- 333 86-20 Adapter Bolt( 8mm x 1.25 LHM)1-3 313- 381 00-20 A dapter Nut(10mm x 1.25 LHF)1-4 27 288 Mountin g Shim( 20mm to 1")1-5 992-0110 0- 011 Washer (10mm)