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[3] DISASSEMBLY/ASSEMBLY

[3] -2. Gear Assembly,  Motor Section

ASSEMBLING

Fig. 12

Fig. 13

(5) Assemble Speed change lever assembly as drawn in 

Fig. 12

.

(6) Assemble Motor section and Gear assembly as illustrated in 

Figs. 13 and 14

.

If the Motor section does not fit to 

Housing L, make sure that Yoke unit

is correctly amounted to Armature.  

See 

Fig. 10

.

Housing Set (L)

rear Compression 

spring 4 

front Compression spring 4

compressed by the lever of

Gear assembly.

Drill chuck

side

Motor side

Pin on the lever

of Gear assembly

Drill chuck

side

Motor side

Drill chuck

side

Motor side

front Compression spring 4 

1. Apply the front Compression 

    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 Compression spring 4

and pin on the lever of Gear assembly

Pin on the lever of Gear assembly fit to 

the coil of rear Compression spring 4

protrusion

notch

Yoke unit

Brush holder complete

Gear ass’y

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.  

4. Slide Speed change lever

    assembly to the either position 

    2(High speed mode) or 

    1 (Low speed mode).

Summary of Contents for BHP448

Page 1: ...ng variations PRODUCT Housing color BHP448RFE DC18RC Model No Type Quantity Charger Plastic carrying case Battery cover Yes 2 Battery BL1430 1 No No No No No BHP448Z Makita blue BHP448RFE3 DC18RC Yes...

Page 2: ...h 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...

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...

Page 4: ...essed 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 lev...

Page 5: ...rew 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 Spee...

Page 6: ...sion 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 pi...

Page 7: ...ve 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 Bru...

Page 8: ...ousing 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 comple...

Page 9: ...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 Swi...

Page 10: ...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...

Page 11: ...D 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 ho...

Page 12: ...ire 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...

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