Makita BDF458RFX cordless combi drill
Contents
1. P 7 12 gt Repair 3 DISASSEMBLY ASSEMBLY 3 2 Gear Assembly Motor Section cont ASSEMBLING 7 Make sure Brush holder complete and Yoke unit are precisely mounted to Housing R See upper drawing in Fig 14 And then mount Housing R to Housing L as drawn in Fig 14 Fig 14 The flat portion of Brush holder complete must be O Fie once at 90 degrees to the edge surface of Housing L Do j D Yoke unit Attach the edge of Yoke unit edge surface of 90 degrees to the rib of Housing L flat portion of Brush holder complete Housing L gt K Housing TA MW Fe holder complete Brush holder complete Gap arises between Housing R and L when Gear assembly is fastened to Housing R and L Holding Housing R and L with Water pump pliers at the portion by their screw holes designated with black triangles fasten Gear case assembly to Housing set with 4x18 Tapping screws 4x18 Tapping screw Note in Assembling Be careful not to give any damage on Housing set when holding with Water pump pliers 8 Fasten Housing R to Housing L with seven 3x16 Tapping screws Refer to the upper right drawing in Fig 8 9 Contact Carbon brush with Armature s commutator putting Torsion spring on the Carbon brush Refer to the left drawing in Fig 9 P 8 12 gt Repair 3 DISASSEMBLY ASSEMBLY 3 3 F R Change Lever ASSEMBLING a Prong Put the projection on2. Switch between the prongs of F R change lever Fig 15 Xs Projection 3 4 Switch plate complete ASSEMBLING Fig 16 Insert Switch plate complete to Housing L Housing R side Set Switch plate complete facing its symbol of Fuel gauge to in place Fig 16 Housing R side Switch plate Note Switch plate complete with complete faced in the wrong direction can not be inserted to Housing L Housing L p iD 114 Rye i Symbol of a Fuel gauge Qe 3 5 Parts related to Drip proof structure ASSEMBLING Assemble Sponge B to Housing L And assemble Seal and Sponge A to Housing L as drawn in Fig 17 Fig 17 Assemble Sponge B to Housing RI Note To assure Drop proof use new Sponge A and Sponge B ieee D wrt Assemble Sponge A to Seal Assemble the Seal to gray Note Edge of the assembled Sponge A Housing L as drawn below has to be flat to the surface of Seal Housing L Sponge A 4m 3 6 Cushion ASSEMBLING Be sure to install Cushion into Housing set L as drawn in Fig 18R Note Fig 18F is the wrong installation Pay attention to the direction Fig 18R Fig 18F Housing set L Cushion Housing set L Cushion Circuit diagram Fig D 1 P 9 12 Circuit with Battery fuel gauge available for the countries other than North American countries Color index o
3. end of the threaded portion mode designated with 1 to Forward clockwise of Spindle Speed change lever D s SN KS N lt Drill chuck SA EA CE EA AF Z F R change lever Attach Battery End of the threaded portion of Spindle Fig 7 Note The rotational direction is viewed from operator 1 Hold Hex wrench 10 with Drill chuck and grip Machine Important Grip Machine hard with both hands to provide sufficient clockwise force against counterclockwise recoil force of Machine 2 Pull Switch trigger slowly to turn Spindle clockwise Note Pull the Trigger so that Spindle s rotating reaches full speed in one second li 4 Open Drill chuck fully and tighten Drill chuck 4 with M6x22 Flat head screw by turning it counterclockwise with Impact driver au S Counterclockwise a j TA ip if PA s i Clockwise force to be applied by operator A i H Z eS Clockwise Counterclockwise recoil force of Machine AR A Hex wrench 10 M6x22 Flat head screw Left handed thread s SS Note Apply adhesive ThreeBond 1321B 1342 or Loctite 242 to threaded portion when re using the removed M6x22 Flat head screw P 4 12 gt Repair 3 DISASSEMBLY ASSEMBLY 3 2 Gear Assembly Motor Section DISASSEMBLING After removing Drill chuck Re Figs 1 2 3 and 4 disassemble Motor section and Gear assembly Figs 8 and 9 Fig 8 1 Remove two 3x16
4. ECHNICAL INFORMATION TH s K 7 PRODUCT gt BDF458 LXFD03 1 D gt 18V Cordless Driver Drill 1 Model number for North and Central American countries CONCEPT AND MAIN APPLICATIONS Model BDF458 LXFD03 1 is a successor model of BDF454 featuring e Extremely compact tool size with an overall length of 225mm 8 7 8 the shortest in its class e High power and productivity achieved with new DC motor FD31 30 e Enhanced dust and drip proof performance to ensure reliable operation even under bad weather e Equipped with Battery fuel gauge 2 for increased maneuverability 2 Not available for model LXFDO3 Note This product is not compatible with 18V 1 3Ah battery BL1815 This product is available in the following variations Type Quantity cover case case color P 1 12 225 8 7 8 79 3 1 8 259 10 1 4 i No gt Specification Voltage V 18 Capacity Ah 3 0 Energy capacity Wh 54 Cell Li ion Charging time approx min 22 with DC18RC DC18RA 3 No load speed min rpm_ Low Capacity of drill chuck mm 1 5 1 16 13 1 2 Capacity mm 71 stage drill mode Clutch torque setting N m in bs 1 0 10 0 9 89 Max lock torque N m in bs 84 750 Max fastening Soft joint 58 520 torque N m in Ibs Hard joint 91 810 LED job light EPTA Procedure 01 2003 4 kg Ibs 3 for North and Central American countries 4 with Battery BL1830 gt Standard e
5. Tapping screws and Rear cover 2 Remove Housing R unscrewing And remove four 4x18 Tapping screws seven 3x16 Tapping screws 3x16 Tapping screw 7 pcs 3x16 Tapping o gt screw 2 pcs 4x18 Tapping screw 4 pcs 3 Pull out Heat sink section and remove Gear assembly 4 Remove Speed change lever and Motor section together with Motor section and Speed change lever from Gear assembly _ Speed change lever Motor section a Speed change lever assembly section 5 Push Speed change lever assembly toward Motor side 6 Lifting up Motor side of Speed change lever assembly until it stops to have space between the pin on the lever pull it toward the direction designated with arrow of Gear assembly and rear Compression spring 4 KS A gt Motor side lt 7 gt Drill chuck side NNR gt Dall chuckside lt Coo Motor side lt 4 SSRN rear ees p 4 i Pin on Compression spring 4 the lever of o Gear assembly Space between rear Compression spring 4 front Compression spring 4 compressed and the pin on the lever of Gear assembly by the lever of Gear assembly Fig 9 5 Shift the tail of Torsion spring from top of Carbon 6 From Armature pull off Brush holder complete and Yoke unit brush to the Notch of Brush holder Carbon brush isan gets free from the pressure of Torsion spring Carbon brush Armature Torsion spring gt Note Pay a
6. f lead wires sheath Black mmm Yellow eE Red muma Bee E Brush holder complete AN OW CD MD Switch Terminal Wiring diagram Fig D 2 Wiring of LED Lead Wires before setting Switch Fix LED lead wires with Lead wire holders drawn below Their lead wires must be tight between Lead wire holders so that Switch can be set in place for some countries instead of white Light circuit Fig D 3 Wiring to Terminal The Flag connector has to be connected so that its wire connecting portion is located over the mark of poles Wire connecting portion P 10 12 gt Wiring diagram Fig D 4 Wiring to Switch Fix the FET Lead wires as follows Connect the Lead wires to Switch tilting their yellow with Lead wire holder nearest to Switch trigger Connectors to 45 degrees as drawn below blue with the center Lead wire holder 45 degrees black with Lead wire holder farthest from Switch trigger black blue yellow Lead wire yd holder lt b Fig D 5 with Battery fuel gauge available for the countries other than North American countries Brush holder complete Wiring in Housing L Put Pigtail of Carbon brush g ne ao j E ii 2 in the area marked with gra ais color to avoid pinching with Rear cover oat TN A Hl E Put Line fi
7. ise Change rin Set Speed change lever S to Low speed mode Note Use Impact driver to unscrew LA 3 ws weg designated with 1 M6x22 Flat head screw if it 12 could not be removed B LR F R change lever manually AM Set F R Change lever ZZAN to Reverse counter CORRECT Hold the 1 d i o e long en Grip flat surfaces DOA Do not hold edges of Hex wrench 10 Hex wrench 10 the short end of Hex wrench 10 Vise Setting of Hex wrench 10 Hex wrench 10 Hex wrench 10 viewed from side A viewed from side A Fig 4 Counterclockwise Clockwise Counterclockwise force to be applied by operator i Note The rotational direction is viewed from operator 1 Hold Hex wrench 10 with Drill chuck and grip Machine Important Grip Machine tightly with both hands to provide the sufficient counterclockwise force against clockwise recoil force of Machine f___ TT 2 Pull Switch trigger slowly Hex wrench 10 lt _ __ Drill chuck is removed from spindle A 3 Spindle rotates counterclockwise and consequently Vise yy A P 3 12 gt Repair 3 DISASSEMBLY ASSEMBLY 3 1 Drill Chuck cont ASSEMBLING 1 Set the machine Fig 5 and 6 2 Set Hex wrench 10 to vise and described in Fig 3 3 Set Drill chuck in place Fig 7 Fig 5 Fig 6 Turn Drill chuck clockwise by hand until Set Speed change lever to Low speed Set F R Change lever it sits on the
8. lter in this place Pig tail of Carbon brush Put the bundled Lead wires into the groove of Sponge Seal Pay attention not to put Lead wires on the Seal Connector Lead wires connected to Connector have to be fixed with Lead wire holders Light circuit ar Circuit diagram Fig D 1A P 11 12 Circuit without Battery fuel gauge available exclusively for North American countries Color index of lead wires sheath Brush holder complete Terminal gt Wiring diagram Fig D 2A HO AD MD Switch Wiring of LED Lead Wires before setting Switch Fix the LED lead wires with Lead wire holders drawn below Their lead wires must be tight between Lead wire holders so that Switch can be set in place Fig D 3A Wiring to Terminal The Flag connector has to be connected so that its wire connecting portion is located over the mark of poles Wire connecting P12 1 Wiring diagram Fig D 4A Wiring to Switch Fix FET Lead wires as follows Connect Lead wires to Switch tilting their yellow with Lead wire holder nearest to Switch trigger Connectors to 45 degrees as dran below blue with the center Lead wire holder black with Lead wire holder farthest from Switch trigger 45 degrees FET black blue yello
9. quipment bit 2 45 oe 2 CIE CY serrera 1 Bit holder sesievisccesecs i Grip assembly l Note The standard equipment for the tool shown above may vary by country Optional accessories Fast charger DC18RA Charger DC18SD for US Canada Guam Panama Mexico and Colombia Charger DC24SC Fast charger DC18RC Automotive charger DC18SE for all countries except the countries above Battery BL1830 Battery protectors Drill bits for wood Drill bits for steel Driver bits P 2 12 gt Repair CAUTION Repair the machine in accordance with Instruction manual or Safety instructions 1 NECESSARY REPAIRING TOOLS Code No Description Use for l Use this tool if Drill chuck cannot be removed by the method of 1R359 Drill chuck removing tool described in 3 1 Drill chuck disassembling Hex wrench 10 removing mounting Drill chuck 2 LUBRICATION It is not required to lubricate the gear section because the portion is replaced as a factory assembled gear unit 3 DISASSEMBLY ASSEMBLY 3 1 Drill Chuck DISASSEMBLING 1 Remove M6x22 Flat head screw as drawn in Fig 1 2 Preset the machine as drawn in Fig 2 And set Hex wrench 10 to Vise as drawn in Fig 3 3 Gripping Hex wrench 10 with Drill chuck firmly remove Drill chuck as drawn in Fig 4 Fig 1 Fig 2 Set Change ring Speed change lever Open Drill chuck fully and remove M6x22 to Drill mode Flat head screw by turning it clockw
10. ssembly Motor Section ASSEMBLING 5 Assemble Speed change lever assembly as drawn in Fig 12 Fig 12 Pin on the lever of Gear assembly Motor side ol lt rear Compression spring 4 ee q E Motor side P 6 12 1 Apply the front Compression spring 4 of Speed change lever assembly to the flat side without pin of Gear assembly for Speed change Push Speed change lever assembly toward Motor side until it stops to have space between pin of Gear assembly and rear Compression spring 4 Space between rear Compression spring 4 and pin on the lever of Gear assembly front Compression spring 4 compressed by the lever of Gear assembly N A Motor side Co Jo ET Pin on the lever of Gear assembly fit to the coil of rear Compression spring 4 Fit the pin of Gear assembly to Spring s coil with slowly returning Speed change lever assembly toward Drill chuck side Slide Speed change lever assembly to the either position 2 High speed mode or 1 Low speed mode 6 Assemble Motor section and Gear assembly as illustrated in Figs 13 and 14 Fig 13 While aligning the notch of Yoke unit with projection of Housing L mount Yoke unit together with Gear ass y and Motor section to Housing L Housing Set L If the Motor section does not fit to Housing L make sure that Yoke unit is correctly amounted to Armature See Fig 10
11. ttention not to pinch your finger between Yoke unit and Armature when removing Do not scratch the copper wires of Armature Yoke unit draws Armature by its considerable strong magnet force P 5 12 gt Repair 3 DISASSEMBLY ASSEMBLY 3 2 Gear Assembly Motor Section cont ASSEMBLING 1 Assemble Motor section taking the reverse step of Disassembling Refer to Fig 9 Insert Armature into Yoke unit as drawn in Fig 10 Fig 10 Correct Wrong Yoke unit has to be assembled to Armature so that its notch is located on the drive end side Note in Assembling 1 Do not pinch your finger between Armature fan and Yoke unit 2 Insert Armature into Yoke unit carefully so that its wire does not damage 2 Assemble Brush holder complete to Commutator end of Armature Refer to the drawings in Fig 9 Carbon brushes in Brush holder complete have to be still left from Armature s commutator in this step 3 Fasten Heat sink with Pan head screw to Yoke unit And insert the Motor section into Gear assembly while engaging Armature s gear with the Planet gears in Gear assembly Refer to the center right drawing in Fig 8 4 Before mounting Speed change lever assembly make sure that Lead springs and Compression springs are assembled to Speed change lever assembly See Fig 11 Fig 11 Compression Leaf spring 2 pes spring 4 2 pes gt Repair 3 DISASSEMBLY ASSEMBLY 3 2 Gear A
12. w Lead wir holder Fig D 5A without Battery fuel gauge available exclusively for North American countries Brush holder complete Wiring in Housing set L a TE a a Put Pigtail of Carbon brush K rt ALL ee in the area marked with gray T p a color to avoid pinching with Rear cover Pigtail of Carbon brush Put the bundled Lead wires into the groove of Sponge Seal Pay attention not to put Lead wires on the Seal Lead wires connected to Connector have to be fixed with Lead wire holders
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