HR2450-TE, MAKITA Budowa, Instrukcje serwisowe
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//-->TECHNICAL INFORMATIONHR2450, HR2451, HR245224mm (15/16 " ) Rotary HammerLModel No.DescriptionPRODUCTP 1 / 16CONCEPT AND MAIN APPLICATIONSThe above models are the advanced version of MAKITA'sfamous 3 -modes rotary hammer HR2400.Each new model features :HR2450 : with variable speed and reverse switchHR2451 : with variable switch without reverse switchHR2452 : with single speed switch without reverse switchHWDimensions : mm ( " )Length ( L ) 360 (14-1/8)Height ( H ) 204 (8)72 (2-13/16)Width ( W )Continuous Rating (W)InputOutput780370780370780370780370780370HR24517800 - 1,1000 - 4,5002.7YesNoHR24527801,1004,5002.7NoNoSpecificationVoltage (V)110120220230240Current (A)7.56.73.73.63.4Cycle (Hz)50 / 6050 / 6050 / 6050 / 6050 / 60HR24507800 - 1,1000 - 4,5002.7YesYesMax. Output(W)650650650650650Model No.Power input : WNo load speed : (min-1= rpm)Blows per min, :(bpm=min-1)Single blow energy ( J )Variable switchReverse switchSDS maxSDS plusBit typeSDS topSplineHexMax. diameter : mm (")Max. core bit diameter: mm (")SDStopSDSMAX* 24 (15/16 )54 (2-1/8 )* 24 (15/16 )54 (2-1/8 )* 24 (15/16 )54 (2-1/8 )Protection from electric shock by double insulation by double insulation by double insulation** 4 (13.1)** 4 (13.1)** 4 (13.1)Cord length : m ( ft )2.4 (5.3)2.4 (5.3)2.4 (5.3)Net weight :Kg (lbs )* 25mm (1") for USA.** 2.5m (8.2) for Asia ** 2.0m (6.6) for AustraliaStandard equipment* Stopper pole ........................................... 1 pc.* Side grip ................................................. 1 pc.* Plastic carrying case ............................... 1 pc.< Note > The standard equipment for the tool shown may differ from country to country.Repair< 1 > LubricationApply the following MAKITA grease to protect parts and product from unusual abrasion.* Grease RA No.1 (Brown) to the portions marked with black triangle* Grease FA No.2 to the portions marked with gray triangle* Disulphide molybdenum alloyed grease to the portion marked with white triangleP 2 / 16Cap 35Gear housingNeedle baringChange leverPiston jointO ring 17Steel ball 7.0Tool holderPiston cylinderO ring 68Inner housingSpur gear 51Spur gear 10Clutch camCam shaftSwash bearingHelical gear 26Cap 35Gear housingNeedle bearingChange leverO ring 17Spur gear 51Steel ball 7.0Tool holderPiston cylinderO ring 68Inner housingSpur gear 10Clutch camGrease RA No.1 (Brown)Grease RA No.1 (Brown) : 60gGrease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Disulphide molybdenum alloyed greaseGrease FA No.2Grease FA No.2Inner lip of bit inserting sideInner portion where the mechanical parts are installed.Groove for O ring 17 assembling portionInner ringTop of the pinsWhole partInner portion where tool holder contactsConvex portion of camWhole partInner portion where piston cylinder contactsThe portion where inner housing contactsInner portion where striker contactsThe portion where piston joint is assembledWhole partInner portion where tool holder contactsThe groove where O ring 68 is assembledSpiral portionThe hole where cam shaft contactsConvex portion of camWhole of groove portionInner portion where cam shaft contactsThe surface where helical gear 26 contactsThe portion where balls are installedConvex portion of camWhole of teeth portionSwash bearing 10Helical gear 26Repair< 2 > Disassembling chuck section1. Slide chuck cover in the direction of gear housing, and pull out cap 35 by turning. See Fig. 1.2. Take off ring spring 19. Then, the following parts can be disassembled from tool holder. See Fig. 1A.* Chuck cover* Ring 21P 3 / 163. Take off steel ball 7.0 with which guide washer and conical compression spring 21-29 are held. See Fig. 1A.Then, guide washer and conical compression spring 21-29 can be disassembled from tool holder. See Fig. 1B.Cap 35Ring spring 19Chuck coverSteel ball 7.0Guide washerConical compressionspring 21-29Tool holderRing 21Chuck coverGear housingFig. 1Fig. 1AFig. 1B< 3 > Assembling chuck section1. Apply grease to steel ball 7.0 and cap 35 referring to < 1 > Lubrication at page 2.2. Assemble conical compression spring 21-29 and guide washer, and hold guide washer with steel ball 7.0.See Fig. 1B and Fig. 1A.3. Assemble ring 21 and chuck cover to tool holder. And then, hold them with ring spring 19. See Fig. 1A.4. Slide chuck cover in the direction of gear housing, and assemble cap 35 by turning. See Fig. 1.< Note in assembling >A. Pay attention to the assembling directionof conical compression spring 21-29.Conical compressionspring 21-29Cap 35 sideGear housing sideThe small portion : Gear housing sideThe large portion : Cap 35 sideThe cut portionof ring spring 19B. The cut portion of ring spring 19 has to cometo the opposite side of the flat portion oftool holder.The flat portion oftool holder.RepairP 4 / 16< 4 > Disassembling change lever1. Separate cap from change lever. See Fig. 1.2. Fully turn change lever in the direction of drill mode. Then, change lever can be pulled out from gear housing.See Fig. 2A and Fig. 2BCapGear housingFig. 2Gear housingLock buttonCompression spring 3Fig. 2AO ring 17Change leverFig. 2BCap< Note >Be careful, not to lose lock button and compression spring 3.They can easily spring off. See Fig. 2C.Gear housingFig. 2C< 5 > Assembling change lever1. Apply grease to the pin of change lever and O ring 17 referring to < 1 > Lubrication at page 2.2. Assemble compression spring 3 and lock button to change lever. And temporarily assemble cap to the positionillustrated in Fig. 3 in order to stop springing off of lock button. Do not forget to assemble O ring 17. See Fig. 3.3. Insert the change lever in which compression spring 3 and lock button have been temporarily fixed with cap, intothe assembling hole of gear housing. See Fig. 3A. The change lever can not be inserted completely in this stage.4. Pressing the change lever, turn it in the direction of drill mode. Then, it can be inserted completelyin any position of area B. See Fig. 3B.5. Turn the change lever to the area C. See Fig. 3B. And assemble cap completely to the original positionof change lever, by pressing to gear housing side.Lock buttonCompression spring 3Change leverCapFig. 3AO ring 17CLock buttonCap assembledtemporarilyCompressionspring 3Change leverFig. 3BCompressionspring 3Change leverFig. 3BIf the change lever can not be inserted completelyin any position of area B, pressing lock button, turn it to the directionof drill mode again in order to insert completely in any position of area B.Cap assembledcompletely bypressing.AInsert the change leverwithin the area A.Lock buttonRepairP 5 / 16< 6 > Disassembling armature1. Disassemble handle cover by unscrewing tapping screw 4 x 25. And disassemble carbon brushesas illustrated in Fig. 4.2. Separate gear housing together with armature, from motor housing by unscrewing tapping screws 4 x 45as illustrated in Fig. 4A.3. Slightly hitting the edge of gear housing with plastic hammer, remove armature from inner housing assembled ingear housing. See Fig. 4B.4. Ball bearings of fan side and commutator side can be disassembled with No.1R269 "Bearing extractor (small)".See Fig. 4C.Tapping screw 4 x 45 : 4 pcs.Gear housingBrush holderMotor housingGear housingInner housingBrush holderCarbon brushPlastic hammerCarbon brushHandlecoverFig. 4Tapping screw 4 x 25 : 3 pcs.Fig. 4BBall bearingArmatureFig. 4ANo.1R269 "Bearing extractor (small)"Fig. 4C< 7> Disassembling tool holder section1. Disassemble change lever from gear housing as mentioned in < 4 > Disassembling change lever at page 4.2. Separate gear housing from motor housing as illustrated in Fig. 4 and Fig. 4A. And disassemble armature asillustrated in Fig. 4B.3. Disassemble inner housing from gear housing as illustrated in Fig. 5.4. Separate tool holder section from inner housing as illustrated in Fig. 5A. Pay attention, not to lose flat washer 28,when separating tool holder section.Tool holder sectionTool holder sectionPiston cylinderInner housingInner housingPlastic hammerFlat washer 28Swash bearing sectionSwash bearing sectionFig. 5Fig. 5A [ Pobierz całość w formacie PDF ]
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//-->TECHNICAL INFORMATIONHR2450, HR2451, HR245224mm (15/16 " ) Rotary HammerLModel No.DescriptionPRODUCTP 1 / 16CONCEPT AND MAIN APPLICATIONSThe above models are the advanced version of MAKITA'sfamous 3 -modes rotary hammer HR2400.Each new model features :HR2450 : with variable speed and reverse switchHR2451 : with variable switch without reverse switchHR2452 : with single speed switch without reverse switchHWDimensions : mm ( " )Length ( L ) 360 (14-1/8)Height ( H ) 204 (8)72 (2-13/16)Width ( W )Continuous Rating (W)InputOutput780370780370780370780370780370HR24517800 - 1,1000 - 4,5002.7YesNoHR24527801,1004,5002.7NoNoSpecificationVoltage (V)110120220230240Current (A)7.56.73.73.63.4Cycle (Hz)50 / 6050 / 6050 / 6050 / 6050 / 60HR24507800 - 1,1000 - 4,5002.7YesYesMax. Output(W)650650650650650Model No.Power input : WNo load speed : (min-1= rpm)Blows per min, :(bpm=min-1)Single blow energy ( J )Variable switchReverse switchSDS maxSDS plusBit typeSDS topSplineHexMax. diameter : mm (")Max. core bit diameter: mm (")SDStopSDSMAX* 24 (15/16 )54 (2-1/8 )* 24 (15/16 )54 (2-1/8 )* 24 (15/16 )54 (2-1/8 )Protection from electric shock by double insulation by double insulation by double insulation** 4 (13.1)** 4 (13.1)** 4 (13.1)Cord length : m ( ft )2.4 (5.3)2.4 (5.3)2.4 (5.3)Net weight :Kg (lbs )* 25mm (1") for USA.** 2.5m (8.2) for Asia ** 2.0m (6.6) for AustraliaStandard equipment* Stopper pole ........................................... 1 pc.* Side grip ................................................. 1 pc.* Plastic carrying case ............................... 1 pc.< Note > The standard equipment for the tool shown may differ from country to country.Repair< 1 > LubricationApply the following MAKITA grease to protect parts and product from unusual abrasion.* Grease RA No.1 (Brown) to the portions marked with black triangle* Grease FA No.2 to the portions marked with gray triangle* Disulphide molybdenum alloyed grease to the portion marked with white triangleP 2 / 16Cap 35Gear housingNeedle baringChange leverPiston jointO ring 17Steel ball 7.0Tool holderPiston cylinderO ring 68Inner housingSpur gear 51Spur gear 10Clutch camCam shaftSwash bearingHelical gear 26Cap 35Gear housingNeedle bearingChange leverO ring 17Spur gear 51Steel ball 7.0Tool holderPiston cylinderO ring 68Inner housingSpur gear 10Clutch camGrease RA No.1 (Brown)Grease RA No.1 (Brown) : 60gGrease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Grease RA No.1 (Brown)Disulphide molybdenum alloyed greaseGrease FA No.2Grease FA No.2Inner lip of bit inserting sideInner portion where the mechanical parts are installed.Groove for O ring 17 assembling portionInner ringTop of the pinsWhole partInner portion where tool holder contactsConvex portion of camWhole partInner portion where piston cylinder contactsThe portion where inner housing contactsInner portion where striker contactsThe portion where piston joint is assembledWhole partInner portion where tool holder contactsThe groove where O ring 68 is assembledSpiral portionThe hole where cam shaft contactsConvex portion of camWhole of groove portionInner portion where cam shaft contactsThe surface where helical gear 26 contactsThe portion where balls are installedConvex portion of camWhole of teeth portionSwash bearing 10Helical gear 26Repair< 2 > Disassembling chuck section1. Slide chuck cover in the direction of gear housing, and pull out cap 35 by turning. See Fig. 1.2. Take off ring spring 19. Then, the following parts can be disassembled from tool holder. See Fig. 1A.* Chuck cover* Ring 21P 3 / 163. Take off steel ball 7.0 with which guide washer and conical compression spring 21-29 are held. See Fig. 1A.Then, guide washer and conical compression spring 21-29 can be disassembled from tool holder. See Fig. 1B.Cap 35Ring spring 19Chuck coverSteel ball 7.0Guide washerConical compressionspring 21-29Tool holderRing 21Chuck coverGear housingFig. 1Fig. 1AFig. 1B< 3 > Assembling chuck section1. Apply grease to steel ball 7.0 and cap 35 referring to < 1 > Lubrication at page 2.2. Assemble conical compression spring 21-29 and guide washer, and hold guide washer with steel ball 7.0.See Fig. 1B and Fig. 1A.3. Assemble ring 21 and chuck cover to tool holder. And then, hold them with ring spring 19. See Fig. 1A.4. Slide chuck cover in the direction of gear housing, and assemble cap 35 by turning. See Fig. 1.< Note in assembling >A. Pay attention to the assembling directionof conical compression spring 21-29.Conical compressionspring 21-29Cap 35 sideGear housing sideThe small portion : Gear housing sideThe large portion : Cap 35 sideThe cut portionof ring spring 19B. The cut portion of ring spring 19 has to cometo the opposite side of the flat portion oftool holder.The flat portion oftool holder.RepairP 4 / 16< 4 > Disassembling change lever1. Separate cap from change lever. See Fig. 1.2. Fully turn change lever in the direction of drill mode. Then, change lever can be pulled out from gear housing.See Fig. 2A and Fig. 2BCapGear housingFig. 2Gear housingLock buttonCompression spring 3Fig. 2AO ring 17Change leverFig. 2BCap< Note >Be careful, not to lose lock button and compression spring 3.They can easily spring off. See Fig. 2C.Gear housingFig. 2C< 5 > Assembling change lever1. Apply grease to the pin of change lever and O ring 17 referring to < 1 > Lubrication at page 2.2. Assemble compression spring 3 and lock button to change lever. And temporarily assemble cap to the positionillustrated in Fig. 3 in order to stop springing off of lock button. Do not forget to assemble O ring 17. See Fig. 3.3. Insert the change lever in which compression spring 3 and lock button have been temporarily fixed with cap, intothe assembling hole of gear housing. See Fig. 3A. The change lever can not be inserted completely in this stage.4. Pressing the change lever, turn it in the direction of drill mode. Then, it can be inserted completelyin any position of area B. See Fig. 3B.5. Turn the change lever to the area C. See Fig. 3B. And assemble cap completely to the original positionof change lever, by pressing to gear housing side.Lock buttonCompression spring 3Change leverCapFig. 3AO ring 17CLock buttonCap assembledtemporarilyCompressionspring 3Change leverFig. 3BCompressionspring 3Change leverFig. 3BIf the change lever can not be inserted completelyin any position of area B, pressing lock button, turn it to the directionof drill mode again in order to insert completely in any position of area B.Cap assembledcompletely bypressing.AInsert the change leverwithin the area A.Lock buttonRepairP 5 / 16< 6 > Disassembling armature1. Disassemble handle cover by unscrewing tapping screw 4 x 25. And disassemble carbon brushesas illustrated in Fig. 4.2. Separate gear housing together with armature, from motor housing by unscrewing tapping screws 4 x 45as illustrated in Fig. 4A.3. Slightly hitting the edge of gear housing with plastic hammer, remove armature from inner housing assembled ingear housing. See Fig. 4B.4. Ball bearings of fan side and commutator side can be disassembled with No.1R269 "Bearing extractor (small)".See Fig. 4C.Tapping screw 4 x 45 : 4 pcs.Gear housingBrush holderMotor housingGear housingInner housingBrush holderCarbon brushPlastic hammerCarbon brushHandlecoverFig. 4Tapping screw 4 x 25 : 3 pcs.Fig. 4BBall bearingArmatureFig. 4ANo.1R269 "Bearing extractor (small)"Fig. 4C< 7> Disassembling tool holder section1. Disassemble change lever from gear housing as mentioned in < 4 > Disassembling change lever at page 4.2. Separate gear housing from motor housing as illustrated in Fig. 4 and Fig. 4A. And disassemble armature asillustrated in Fig. 4B.3. Disassemble inner housing from gear housing as illustrated in Fig. 5.4. Separate tool holder section from inner housing as illustrated in Fig. 5A. Pay attention, not to lose flat washer 28,when separating tool holder section.Tool holder sectionTool holder sectionPiston cylinderInner housingInner housingPlastic hammerFlat washer 28Swash bearing sectionSwash bearing sectionFig. 5Fig. 5A [ Pobierz całość w formacie PDF ]