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P 12 / 14

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epair

[3] DISASSEMBLY/ASSEMBLY

Fig. 40

 ASSEMBLING

[3] -7. Needle Bearing Complete, Oil Seal 25

[3] -8.  F/R Change Lever

1) Applying 1R232 to Oil seal 25, press down 1R232 using arbor press in order to insert Oil seal 25 halfway into Gear
     housing.    (left in Fig. 40)
2) Applying 1R164 to Oil seal 25 inserted halfway into Gear housing complete, press down Gear housing complete
     using arbor press until it stops.  (right in Fig. 40)
3) Apply Makita grease RB No.00 to the inside surface of Needle bearing complete.
4) Applying 1R164 onto Needle bearing complete, set them to Gear housing complete.
5) Press down Gear housing complete using arbor press in order to insert Need bearing complete into Gear housing 
    complete.

1R232

Oil 
Seal 25

Face 34mm side to 
Oil seal 25 in Gear 
housing complete.

1R164

Gear
Housing
Complete

1) Pass F/R change lever's tab through switch cover  (left in Fig. 42)
2) Mount switch cover to switch by fitting the prong portion of F/R change lever to the boss of switch. (center of Fig. 42)

Gear Housing
Complete

1R164

Something to support 1R164

Fig. 41

Needle bearing 
complete

Gear housing
complete

flat portion

bottom side

top
side

top side

bottom side

34mm

34mm

Switch Cover

F/R Change
Lever

F/R Change
Lever

Switch Cover

Boss

Switch

Switch

Prong portion

Completion

 Fig. 42

Important:  Needle bearing complete is not reversible when assembled to Gear housing complete.  Be sure to place 

the flat portion of Needle bearing complete on the bottom side of Gear housing complete.

1R164 is shorter in height than Gear housing complete. Be sure to add something to support it when 
inserted into Gear housing complete.

Something to support 1R164

Summary of Contents for BHR240

Page 1: ...e Net Weight kg lbs Grip Assembly 1 set Depth Gauge Stopper Pole 1 pc SDS Plus bits Taper shank T C T bits Taper shank adapter Cotter Drill chuck assembly Chuck adapter Drill chuck S13 Bull points Dus...

Page 2: ...rmature holder 32 Fixing Tool holder Removing installing Ring spring 19 for modular use with 1R003 1R212 Tip for retaining ring pliers Installing Oil seal 25 1R232 Pipe 30 Removing Oil seal 25 1R252 R...

Page 3: ...older comp 28 X ring 9 Inner circumference Surface that contacts Tool holder comp 32 Sleeve 9 31 Ring 10 Surface that contacts Cushion ring 13 Whole surface 38 O ring 9 35 Whole surface 41 O ring 16 P...

Page 4: ...washer and Conical compression spring 21 29 Fig 5 ASSEMBLING Do the reverse of the disassembling steps Note Conical compression spring 21 29 and Ring spring 19 are not reversible when assembled to To...

Page 5: ...lace the provisionally assembled Change lever within the area A of Gear housing Fig 8 and insert into the Change lever installation hole Change lever cannot be inserted completely in this step 4 Pushi...

Page 6: ...ction Figs 3 4 5 in page 4 and Change lever Figs 7 8 2 Separate Gear housing from Motor housing Fig 12 Remove Armature from Gear housing Fig 13 3 Remove the assembly of Tool holder section and Inner h...

Page 7: ...trated in Fig 17 3 Clamp Tool holder complete using Vise and 1R038 as illustrated in Fig 18 4 Insert a slotted screwdriver between Ring spring 28 and O ring case through the side hole of Tool holder I...

Page 8: ...g 22 3 6 Swash Bearing Section DISASSEMBLING Impact bolt section X ring 9 O ring 16 Ring 10 O ring 9 Sleeve 9 Impact bolt Cushion ring 13 O ring case Fig 23 Piston cylinder as an assembling jig Note N...

Page 9: ...he rear dead center position Inner housing Swash bearing section Fig 28 Fig 29 Fig 30 6 Remove Ball bearing 606ZZ from Gear housing complete using the removed Swash bearing section as a jig as follows...

Page 10: ...ASSEMBLING 1 Assemble Swash bearing section using 1R034 as illustrated in Fig 33 Note 1 Be sure to put Flat washer 8 in place or Bearing retainer will be clamped between Ball bearing 608ZZ and Helica...

Page 11: ...ig 38 assemble Change plate to Inner housing and Clutch cam to Cam shaft at the same time Put Spur gear 10 and Compression spring 7 through Cam shaft and secure them with Retaining ring S 7 Put Compre...

Page 12: ...5 Face 34mm side to Oil seal 25 in Gear housing complete 1R164 Gear Housing Complete 1 Pass F R change lever s tab through switch cover left in Fig 42 2 Mount switch cover to switch by fitting the pro...

Page 13: ...Circuit diagram P 13 14 Yoke Unit Heat Sink F E T Terminal End bell Complete Color index of lead wires sheath Black Red Blue Fig D 1 Yellow Switch Tape to bundle the lead wires...

Page 14: ...following lead wires with band FET s lead wires black blue yellow Switch s lead wire red Rib A FET Rib C Route he following lead wire between rib B and rib C Switch s lead wires black and red FET s l...

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