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[3] DISASSEMBLY/ASSEMBLY

[3] -2. Gear Assembly, Motor Section

DISASSEMBLING

Fig. 8

1. Remove two 3x16 Tapping screws and Rear cover. 

    And remove four 4x18 Tapping screws. 

After removing Drill chuck (Re: 

Figs. 1

2

3

 and

 4)

, disassemble Motor section and Gear assembly. 

(Figs. 8

 and 

9

2. Remove Housing R, unscrewing 

    seven 3x16 Tapping screws. 

3. Pull out Heat sink section, and remove Gear assembly 

    together with Motor section and Speed change lever.

4. Remove Speed change lever and Motor section 

    from Gear assembly.

Gear assembly

Speed change lever

Motor section

Motor section

Rear cover

3x16 Tapping 

screw (2 pcs.) 4x18 Tapping

screw (4 pcs.)

3x16 Tapping screw (7 pcs.)

Heat sink 

section

Speed change 

lever assembly

rear 

Compression 

spring 4 

front Compression spring 4 compressed

by the lever of Gear assembly 

Drill chuck side

Motor side

Drill chuck side

Motor side

5. Push Speed change lever assembly toward Motor side 

    until it stops to have space between the pin on the lever 

    of Gear assembly and rear Compression spring 4.

6. Lifting up Motor side of Speed change lever assembly, 

    pull it toward the direction designated with arrow.

Space between rear Compression spring 4

and the pin on the lever of Gear assembly.

Pin on 

the lever of 

Gear assembly

Fig. 9

Torsion spring

Carbon brush

Brush holder complete

Yoke unit

Armature

Note

: Pay attention 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.

5. Shift the tail of Torsion spring from top of Carbon 

    brush to the Notch of Brush holder. Carbon brush

    gets free from the pressure of Torsion spring.

6. From Armature, pull off Brush holder complete and Yoke unit. 

Summary of Contents for LXPH03 1 Series

Page 1: ...Plastic carrying case Battery cover Yes 2 Battery BL1830 1 No No No No No BHP458Z LXPH03 1 DC18RA Yes 2 BL1830 1 No No No No No LXPH03Z 1 Makita blue BHP458RFE3 DC18RC Yes Systainer case No No BHP458RFX DC18RC No 2 BL1830 1 Yes No No No No No BHP458ZX Yes No No No 3 BL1830 2 Battery Capacity of drill chuck mm Capacity mm Max lock torque N m in lbs Electric brake Variable speed control Mechanical s...

Page 2: ...ch 10 Use this tool if Drill chuck cannot be removed by the method of described in 3 1 Drill chuck disassembling removing mounting Drill chuck Open Drill chuck fully and remove M6x22 Flat head screw by turning it clockwise CORRECT WRONG Fig 3 Fig 4 Setting of Hex wrench 10 Vise Grip flat surfaces of Hex wrench 10 Hex wrench 10 Hex wrench 10 viewed from side A Vise Hold the long end A Do not hold e...

Page 3: ... chuck in place Fig 7 M6x22 Flat head screw Left handed thread Turn Drill chuck clockwise by hand until it sits on the end of the threaded portion of Spindle Note Apply adhesive ThreeBond 1321B 1342 or Loctite 242 to threaded portion when re using the removed M6x22 Flat head screw Counterclockwise recoil force of Machine Note The rotational direction is viewed from operator 1 Hold Hex wrench 10 wi...

Page 4: ...ressed by the lever of Gear assembly Drill chuck side Motor side Drill chuck side Motor side 5 Push Speed change lever assembly toward Motor side until it stops to have space between the pin on the lever of Gear assembly and rear Compression spring 4 6 Lifting up Motor side of Speed change lever assembly pull it toward the direction designated with arrow Space between rear Compression spring 4 and...

Page 5: ...crew 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 Note in Assembling 1 Do not pinch your finger between Armature fan ...

Page 6: ...ssion spring 4 of Speed change lever assembly to the flat side without pin of Gear assembly for Speed change 2 Push Speed change lever assembly toward Motor side until it stops to have space between pin of Gear assembly and rear Compression spring 4 3 Fit the pin of Gear assembly to Spring s coil with slowly returning Speed change lever assembly toward Drill chuck side Space between rear Compressi...

Page 7: ...ive any damage on Housing set when holding with Water pump pliers Gear case assembly The flat portion of Brush holder complete must be at 90 degrees to the edge surface of Housing L flat portion of Brush holder complete edge surface of Housing L Housing L 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 ...

Page 8: ...Housing L as drawn below Projection Prong ASSEMBLING 3 4 Switch plate complete ASSEMBLING Put the projection on Switch between the prongs of F R change lever Fig 15 Fig 15 Housing L Switch plate complete Insert Switch plate complete to Housing L facing its symbol of Fuel gauge to Housing R side Note Switch plate complete with faced in the wrong direction can not be inserted to Housing L Symbol of ...

Page 9: ...t Switch Red Lead wire is used for some countries instead of white Terminal LED Wire connecting portion Fix LED lead wires with Lead wire holders drawn below Wiring of LED Lead Wires before setting Switch Wiring to Terminal Lead wire holder Their lead wires must be tight between Lead wire holders so that Switch can be set in place The Flag connector has to be connected so that its wire connecting ...

Page 10: ...r yellow blue black Switch trigger Fig D 4 Fig D 5 Line filter Seal Put Line filter in this place Sponge Put the bundled Lead wires into the groove of Sponge Pay attention not to put Lead wires on the Seal Lead wires connected to Connector have to be fixed with Lead wire holders Connector Light circuit with Battery fuel gauge available for the countries other than North American countries 45 degre...

Page 11: ...ED Switch Terminal Fig D 2A Fig D 1A LED Wire connecting portion Fix the LED lead wires with Lead wire holders drawn below Wiring of LED Lead Wires before setting Switch Wiring to Terminal Lead wire holder Their lead wires must be tight between Lead wire holders so that Switch can be set in place The Flag connector has to be connected so that its wire connecting portion is located over the mark of...

Page 12: ...wire holder yellow blue black Switch trigger FET Fig D 4A Fig D 5A Wiring in Housing set L Seal Put the bundled Lead wires into the groove of Sponge Pay attention not to put Lead wires on the Seal Lead wires connected to Connector have to be fixed with Lead wire holders 45 degrees without Battery fuel gauge available exclusively for North American countries Brush holder complete Put Pigtail of Car...

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