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[3] DISASSEMBLY/ASSEMBLY

[3]-4. Rotor

(1) Loosen four 4x35 Tapping screws, and then remove Battery housing R and Housing R in order from their housings L.

      (

Fig. 31

)

(2) Remove Gear housing section as drawn in 

Fig. 32

      Inner housing in Gear housing section comes with Rotor.

(3) Loosen two M4x12 Hex socket head bolts with 1R170, and then remove Bearing retainer A. (

Fig. 33

(4) Pull Rotor section out straight from Inner housing by hand.

Note

: Due to the effect of O ring 22.4 in the groove in Bearing room, pulling is preferable to tapping for removing Rotor 

          section.

(5)  Insert a set of 1R356 under Ball bearing 608LLU, and press the shaft of Rotor in the center of Spiral bevel gear 11 

      complete with 1R281. (

Fig. 34

      Ball bearing 608LLU, Flat washer 8 and Spiral bevel gear 11 complete are removed.

      Remove 626DDW from Rotor with 1R269.

Battery 

housing R

Gear housing section

4x18 Tapping

screw (10 pcs.)

4x35 Tapping

screw (4 pcs.)

DISASSEMBLING

ASSEMBLING

Fig. 31

Fig. 32

Fig. 33

Fig. 34

R

epair

P 1

1

25

Housing R

Rotor section

Arbor press

Spiral bevel gear

11 complete

Shaft of Rotor

Ball bearing 626DDW

1R170

Bearing retainer A

M4x12 Hex

socket head bolt

Rotor section

Two holes of Inner housing 

for inserting two bosses of 

Housing L

Stator

1R281
1R356

Ball bearing 608LLU

on Flat washer 8

Assemble by reversing the disassembly procedure.

Note

: Be sure to set Flat washer 8 in place between Fan and Ball bearing 608LLU. 

Summary of Contents for BHR242

Page 1: ...system kg lbs Weight according to EPTA Procedure 01 2003 kg lbs 2 for North and Central American countries only Side grip assembly 1 Depth gauge Stopper pole 1 Plastic carrying case 1 Quick change dri...

Page 2: ...Drill chuck extractor 1R139 removing Spiral bevel gear 32 Pipe 30 1R232 assembling Oil seal 25 to Gear housing complete Round bar for arbor 30 100 1R252 removing Oil seal 25 from Gear housing complet...

Page 3: ...e 60 73 Spiral bevel gear 32 Flat fillister HD pin 6 Portion that contacts the hinge of Inner housing complete 74 76 Weight holder guide 75 Counter weight 80 Spiral bevel gear 11 complete Makita Greas...

Page 4: ...tire surface Inside where 48 Piston cylinder reciprocates Push corn 25 Outer surface 6 8 105 109 30 Ring 21 Inner periphery Sleeve 9B 39 Inside where Impact bolt A B reciprocates Washer 10 41 Entire s...

Page 5: ...er and Tool holder complete Chuck cover is removed 4 Remove two Steel balls 7 0 while pressing down Ring 21 Fig 6 Ring 21 Guide washer and Conical compression spring 21 29 are removed Fig 4 Fig 5 Fig...

Page 6: ...ith 1R004 from Tool holder guide complete side Flat washer 24 Leaf spring and Steel ball 5 are removed Fig 12 5 Remove two Steel balls 6 Torsion spring 31 and Change ring from Tool holder Fig 13 Fig 8...

Page 7: ...Put Steel ball 5 0 in the groove surrounded by Change cover and Tool holder left in Fig 17 5 Set Leaf spring and Flat washer 24 in change cover then secure them with Ring spring 21 right in Fig 17 6...

Page 8: ...Leaf spring and Steel ball 5 0 can be removed Pull off Change cover Change ring and Torsion spring 31 can be removed Torsion spring 31 Chuck holder Spacer Chuck holder Chuck holder Chuck holder Spacer...

Page 9: ...em with Ring spring 21 Fig 26 Spacer Spacer Spacer Insert the short arm of Torsion spring 31 into the hole of Chuck holder using small pliers While fitting the flat portions of Chuck holder to Spacer...

Page 10: ...ig 2 1 Assemble the following parts to Change lever Lock button Compression spring 3 Change lever cover O ring 21 Apply Makita lubricating oil VG100 Thin washer 16 Compression spring 5 Push corn 2 App...

Page 11: ...LLU and press the shaft of Rotor in the center of Spiral bevel gear 11 complete with 1R281 Fig 34 Ball bearing 608LLU Flat washer 8 and Spiral bevel gear 11 complete are removed Remove 626DDW from Rot...

Page 12: ...to Compression spring 6 Refer to A Set Opener in place Refer to B When Battery housing L and R are matched do not fail to assemble the parts shown in C Hold one end of Torsion spring 6 with the inner...

Page 13: ...of Tool holder section by turning the handle of 1R045 clockwise Fig 39 9 Remove Spiro lock washer 30 from Tool holder guide complete by gradually sliding it on Tool holder guide complete with Thin sl...

Page 14: ...part of Ring spring 28 is removed from the inner groove of Tool holder guide complete insert another slotted screwdriver in between Ring spring 28 and the inner groove of Tool holder guide complete to...

Page 15: ...st not be placed at the two holes of Tool holder guide complete 2 Push Ring spring 28 into the inner groove of Tool holder guide complete as drawn in Fig 45 Note Do not reuse the removed Ring spring 2...

Page 16: ...ylinder into Inner housing to tilt Swash bearing 10 Pull Swash bearing section horizontally with Swash bearing 10 kept tilted and remove the pole of Swash bearing 10 toward the tilted direction Swash...

Page 17: ...r stops 3 Pass Cam shaft through Ring 8 and Bearing retainer B and then press fit Ball bearing 608ZZ and Ring 8 to Cam shaft with 1R033 carefully Do not pinch Bearing retainer B by Ball bearing 608ZZ...

Page 18: ...Lock plate mating side in order to do the next step smoothly 9 While holding Lock plate by a finger so as not to drop from the guides of Gear housing assemble Gear housing to Inner housing Figs 58 an...

Page 19: ...lete on 1R258 as drawn in Fig 61 press fit Oil seal 25 with 1R232 until it stops Fig 62 Oil seal 25 is not yet inserted completely because the outer diameter of 1R232 is larger than that of Oil seal s...

Page 20: ...ponge sheet C and Motor complete as an assembled part Fig 65 Assemble the components by reversing the disassembly procedure Guide plate Cushion and four Rubber pins 4 are on not only Housing R but als...

Page 21: ...by releasing the hooks with a thin slotted screwdriver and then separate Rack A Compression spring 3 Stopper base and Slide lever A Fig 68 DISASSEMBLING Housing L Slide lever B Housing L 1 Slotted scr...

Page 22: ...When it is difficult to remove because of the tight contact peel it with a thin slotted screwdriver Fig 69 When reassembling Collector base A B and Inner pipe keep a right angle between them In assem...

Page 23: ...ler Orange mark White mark Black mark Connector to Dust extraction system DX01 DX02 Connector to BHR242 and BHR243 Black Orange Blue Brown White Red Yellow Color index of lead wire s sheath Controller...

Page 24: ...ib B Line extended from Rib D Line extended from Rib D Wiring diagram Fig D 3 Rib C Rib D Turned portion Connector Flag receptacles Controller Set Controller in place with Flag receptacles faced as dr...

Page 25: ...h Flag receptacles as drawn below Black Lead wire Red Lead wire Pass Lead wires through the holes of Line filter one by one and place them in the space between Ribs Line filter is not used for some co...

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