Makita BHR241 Información técnica - Página 5
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[3] DISASSEMBLY/ASSEMBLY
[3] -4. Armature
DISASSEMBLING
1) Remove Holder cap cover by inserting Slotted screwdriver between Holder cap cover and Motor housing complete.
(Fig. 8) Then remove Holder cap and Carbon brushes.
2) Seperate Gear housing complete from Motor housing complete by loosening 4x40 Tapping screws (4 pcs.).
Armature is left on Gear housing complete in this step. (Fig. 9)
3) Pull Armature out from Gear housing complete by hand. (Fig. 10) This way is easier than using Plastic hammer to strike
Gear housing portion. (Ball bearing 6000DDW of Armature is tightly fit into the bearing room in Gear housing complete
using O ring 26. )
Fig. 8
Fig. 9
Holder cap cover
Gear housing
complete
ASSEMBLING
Do the reverse of the disassembling step.
[3] -5. Torque Limiter Section
DISASSEMBLING
1) Disassemble Tool holder section as illustrated in Fig. 3.
2) Disassemble Change lever as illustrated in Figs.4 and 5.
3) Separate Gear housing complete from Motor housing. Then remove Armature from Gear housing complete. (Figs. 8 to 10)
4) Disassemble Torque limiter section as illustrated in Figs. 11 and 12.
5) Remove the Ring spring 29 to separate Washer 31, Compression spring 32 and Spur gear 51 (Figs. 13 and 14)
Fig. 11
Gear housing complete
Ball bearing 606ZZ remains fixed in Gear housing complete.
Fig. 13
Assemble two pcs. of 1R022 to 1R306 and hold them to the ram
of arbor press. Put Torque limiter section on the table of arbor press.
1R036
1R022 (2 pcs.)
Ring spring 29
Motor housing
complete
4x40 Tapping screws (4 pcs.)
Torque limiter
section
Remove Torque limiter
section from Gear housing
complete by striking
Chuck assembling portion
with Plastic hammer.
ram of arbor press
Washer 31
Table of arbor press
See more at http://safe-manuals.com
Fig. 10
Ball bearing 6000DDW
of Armature (behind the Fan)
bearing room of
Gear housing complete
Fig. 12
Flat washer 28
Inner housing complete
Remove Torque limiter section from Piston
cylinder and Inner housing complete.
Fig. 14
While compressing Compression spring 32 by
pressing down Washer 31 using arbor press,
remove Ring spring 29 using 1R004.
Spur gear 51 can be removed.
1R004
Spur gear 51
Compression spring 32
P 5/ 14
Torque limiter section
Piston cylinder
Ring spring 29
Washer 31