GA6020-TE, MAKITA Budowa, Instrukcje serwisowe
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//-->TECHNICAL INFORMATIONGA5010/GA6010, GA5020/GA6020Angle Grinders 125mm (5") /150mm (6")HWLModel No.DescriptionPRODUCTP 1/ 9CONCEPT AND MAIN APPLICATIONSThese four models have been developed as successor modelsof 9005B/9006B.Features durability higher than 9005B/9006B but still the compactmotor housing with circumference smaller than the predecessors.Also the following optional accessories will provide more comfortand control:*Anti-vibration grip for comfortable work*Toolless wheel cover for quick adjustment*Dust cover attachmentModels GA5020/GA6020 feature Super Joint System (SJS).Dimensions: mm (")Model No.GA5010GA6010Length (L)356 (14)Width (W) 139 (5-1/2)169 (6-5/8)Height (H)112 (4-3/8)Dimensions: mm (")Model No.GA5020GA6020Length (L)356 (14)Width (W) 139 (5-1/2)169 (6-5/8)Height (H)120 (4-3/4)SpecificationVoltage (V)110120220230240Model No.DiameterHole diameterNo load speed: min.-1 =rpmWheel size:mm (")Super Joint System (SJS)Electric brakeProtection against electric shockPower supply cord: m (ft)Net weight: kg (lbs)NoNoCurrent (A)1010.55.04.84.6Cycle (Hz)50/60AC: 50/60/ DC50/6050/6050/60GA5010125 (5)22.23 (7/8)11,000YesYes(North America only)Continuous Rating (W)InputOutput1,050700---900/ 1,0001,0507001,0507001,050700GA5020GA6010Max. Output (W)1,6001,600/ 1,8501,7001,7001,700GA6020150 (6)10,000NoNoYesYes(North America only)Double insulationAustralia, Brazil: 2.0 (6.6), Other countries: 2.5 (8.2)2.2 (4.8)Standard equipmentLock nut wrench 35 .............. 1 pcLock nut wrench 28 .............. 1 pcDepressed center wheel ......... 1 pc (125-36 for GA5010 and GA5020, 150-36 for GA6010 and GA6020)Side grip ................................ 1 pcNote:The standard equipment for the tool shown above may differ from country to country.OptionalaccessoriesAnti-vibration grip, Dust cover attachment, Loop handle, Toolless wheel coverGA5010, GA5020: Accessories for 125mm angle grinderGA6010, GA6020: Accessories for 150mm angle grinderP 2/ 9RepairCAUTION: Unplug the machine and remove the wheel and the wheel cover from the machinefor safety before repair/ maintenance in accordance with the instruction manual![1] NECESSARY REPAIRING TOOLSCode No.1R0041R0051R0301R0361R0391R2581R2681R2691R350------DescriptionRetaining ring pliers ST-2[1R291 can be used instead of 1R004.]Retaining ring pliers RT-2NBearing setting pipe 25-17.2Bearing setting plate 17.2Armature holder 41.5 [one set required]V block [2pcs required]Spring pin extractor M3Bearing extractorRing 60Adjustable wrenchWrench 11Removal/installation of Hex nut M7Removing Large spiral bevel gear (GA5010/GA6010)Disassembling Shaft lock sectionRemoving Ball bearing 696ZZDisassembling Shaft lock sectionRemoving Lock sleeve and Lock spring 16Removal/installation of Hex nut M7*1:Different spiral bevel gears are used by different modelsas follows:GA5010/ Spiral bevel gear 34AGA6010/ Spiral bevel gear 35AUse forRemoval/installation of Ring spring 11 (GA5010/GA6010)Removal/installation of Ring spring 7 (GA5020/GA6020)Removing Retaining ring R-30Installation of Large spiral bevel gear*1(GA5010/GA6010)[2] LUBRICATIONLubricate the parts below in order to protect parts and product from unusual abrasion.All models:Put approx. 15g of Makita grease SG No.0 in the gear room of Gear housing.GA5020/ GA6020:Apply Makita Grease SG No.0 to the portions designated with the mark ofItem No.3949Fig. 1Large spiral bevel gear*239*2:Different spiral bevel gears are usedby different models as follows:GA5020/ Spiral bevel gear 34BGA6020/ Spiral bevel gear 35BDescriptionLock spring 16SpindlePortion to lubricateOutside surfaceSurface that contacts Large spiral bevel gear*1. (Fig.1)49[3] DISASSEMBLY/ASSEMBLY[3] -1. Armature, Small spiral bevel gear*3, Ball bearing 6000DDWDISASSEMBLINGFig. 21) After removing Carbon brush, separate Gear housingMotor housingtogether with Armature from Motor housing completecompleteby unscrewing four M5x18 Pan head screws. (Fig.2)2) Separate Bearing box from Gear housing by unscrewingfour 5x25 Tapping screws. (Fig.2)Tapping screw5x25 (4pcs)Pan head screwM5x18 (4pcs)Bearing box*3:Different spiral bevel gears are usedby different models as follows:GA5010 and GA5020/ Spiral bevel gear 13GA6010 and GA6020/ Spiral bevel gear 11Gear housingP 3/ 9Repair[3] -1. Armature, Small spiral bevel gear, Ball bearing 6000DDW (cont.)DISASSEMBLING3) Attach one set of 1R039 to vise, then fix Armature in 1R039.Remove Hex nut M7 from the drive-end of Armature shaft by turning it counterclockwise with Wrench 11. (Fig.3)4) Hold Small spiral bevel gear by hand, then pull off Armature from Gear housing. (Fig.4)Note:If it is difficult to pull off Armature by hand, do the following steps.1. Lubricate the gear and Armature shaft with spray lubricant.2. Wrap the gear with cloth to protect the gear teeth.3. Using water pump pliers or the like, firmly grip the gear wrapped with cloth, then turn the gear.Fig. 3Fig. 4Gear housingHex nut M7Wrench 111R039Small spiral bevel gear5) In order to remove Ball bearing 6000DDW from Gear housing,Fig. 5first remove Retaining ring R-30 using 1R005, then removeFlat washer 20 from Gear housing. (Fig.5)6) Reassemble Armature to Gear housing, then the spiral bevel gearto Armature shaft. Tighten Hex nut M7 provisionally by turningclockwise. (Refer toFigs. 4, 3)7) By tapping the end surface of Gear housing with plastic hammer,Ball bearing 6000DDW can be removed together with Armature.(Fig.6)8) Remove Ball bearing 608DDW from Armature using 1R269. (Fig.7)Fig. 6Small spiral bevel gearFig. 7Small spiral bevel gearFlat washer 22Retaining rig R-30Ball bearing 6000DDW1R269Ball bearing 600DDWHex nut M7Hex nut M7Ball bearing 6000DDW Ball bearing 608DDWASSEMBLING1) Mount Ball bearing 6000DDW on Armature by hand, then insertinto the bearing installation hole of Gear housing, (Fig.8)Then pull off Armature.2) Put Flat washer 22 on Ball bearing 6000DDW, and fasten themwith Retaining ring R-30 using 1R005.3) Then do the reverse of the disassembling steps.Fig. 8Ball bearing 6000DDWP 4/ 9Repair[3] -2. Large spiral bevel gear*3and Ball bearing in Bearing box*4*3:Different spiral bevel gears are used by different models as follows:GA5010/ Spiral bevel gear 34A, GA5020/ Spiral bevel gear 34BGA6010/ Spiral bevel gear 35A, GA6020/ Spiral bevel gear 35B*4:Different ball bearings are used by different models as follows:GA5010 and GA6010/ Ball bearing 6202DDWGA5020 and GA6020/ Ball bearing 6002DDWNote:The gear and the ball bearing can be replaced without disassembling the Motor section.DISASSEMBLING[Regarding steps 3) and 4), do the alternative steps depending on the models as described below.]All Models1) Separate Bearing box from Gear housing first by unscrewing four M5x18 Pan head screws then by tapping the end ofGear housing with plastic hammer as illustrated inFig. 9.It is not necessary to remove Carbon brushes.2) Remove Ball bearing 6000ZZ using 1R269. (Fig.10)Fig. 9Fig. 101R269Bearing boxLarge spiral bevel gearBall bearing 696ZZGear housingBearing boxGA5010/ GA60103) Remove Ring spring 11 from Spindle by levering up with slotted screwdriver while expanding the ends of the springa little bit with 1R004 or 1R291. (Fig.11)4) As illustrated inFig. 12,put 1R258 (2 pcs) on the table of arbor press, then fix Bearing box in 1R258; at this time,make sure that 1R258 is securely supporting all of the three raised portions on the flanged end of Bearing retainer.Remove Large spiral bevel gear by pressing down the end surface of Spindle using arbor press.Fig. 11Fig. 12Slotted screwdriver1R004SpindleBearing boxLarge spiral bevel gearraised portionon the flanged endRing spring 11Spindle1R258Bearing box,viewed from bottomP 5/ 9Repair[3] -2. Large spiral bevel gear and Ball bearing in Bearing box (cont.)DISASSEMBLINGGA5020/ GA60203) Remove Ring spring 7 from Spindle by levering up with slotted screwdriver while expanding the ends of the springa little bit with 1R004 or 1R291. (Refer toFig. 11on page 4.) Then remove Flat washer 8 and Lock washer.4)-1. By striking the end surface of Spindle against workbench, Large spiral bevel gear can be removed from Spindletogether with Lock sleeve and Lock spring 16. (Fig.13)4)-2. Hold Large spiral bevel gear securely by hand, and pull off Lock sleeve with adjustable wrench while turning itcounterclockwise. Then remove Lock spring 16 the same way as you removed Lock sleeve. (Fig.14)Fig. 13Fig. 14Lock sleeveBearing boxLarge spiralbevel gearSpindleLarge spiral bevel gearLock spring 16All Models5) After removing Large spiral bevel gear, separate Bearing retainer 39by removing three M3x6 Pan head screws. (Fig.15)6) Remove Ball bearing in Bearing box by hitting Bearing box straightdown against flat surface of work-bench. (Fig.16)If cannot be removed, use arbor press and a round bar for arbor ofan appropriate size as illustrated inFig. 17.Fig. 15Pan head screwM3x6 (3 pcs)Bearing retainer 39Fig. 16Fig. 17Round bar for arborBall bearingin Bearing box
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