P 4/ 7
R
epair
[3] DISASSEMBLY/ASSEMBLY
ASSEMBLING
Take the disassembling step in reverse.
Also, refer to [3]-3. Armature
ASSEMBLING
1) Mount Compression spring 15 and Ball bearing 6002LLB on Spindle.
Apply a little amount of Makita grease N No. 2 to the contact portion of Spindle
and Ball bearing 6002LLB in advance. (Fig. 1)
And then fit Retaining ring S-15 into the groove of Spindle with 1R291.
2) Receiving Helical gear 45 with 1R232, press fit the Spindle into Helical gear 45.
(Fig. 11)
Note: The cam portion of Helical gear 45 has to be faced to the opposite from Ball
bearing 6002LLB side. (Fig. 12)
Do not contact the cam portion of Helical gear 45 with 1R232.
3) Install Armature ass’y into Field ass’y. And assemble the remaining parts of Spindle section to Cam holder complete.
Refer to Figs. 13, 14. Be sure to shift Change lever to Hammer drill mode.
Note: It is not required to remove Drill chuck when replacing Armature only.
1) Remove Spindle section (Refer to Fig.5) and separate Carbon brushes from Brush holder unit.
2) Remove Armature ass’y and Cam holder complete together from Housing L and Field ass’y.
Change lever, Steel ball 5.0 and Plate 19 can be removed from Cam holder complete. (Fig. 8)
3) Remove Armature ass’y from Cam holder complete with 1R045 and 1R346. (Fig. 9)
Ball bearings on drive end and commutator end can be removed with 1R269. (Fig. 10)
DISASSEMBLING
DISASSEMBLING
[3]-2. Carbon brush, Helical gear 45, Ball bearing 6002LLB (cont.)
[3]-3. Armature
Fig. 8 Fig. 9 Fig. 10
Cam holder complete
Cam holder complete
Armature ass’y
1R045
1R346
Change lever
Steel ball 5.0
1R269
Plate 19
Fig. 12
Fig. 11
cam portion of Helical gear 45Ball bearing 6002LLB
Fig. 14Fig. 13
Change lever
Change
lever
Plate 19
Slot for Plate 19
Retaining
ring S-15
Compression
spring S-15
After setting Plate 19 in place through
a slot of Cam holder complete, insert
Change lever and Steel ball 5.0 into
Cam holder complete.
Axis for
Pivoting
Put Steel ball 5.0
to the depression
on Change lever
after applying a
little bit grease
on the hole.
Viewed from the upper side
Change lever
Armature ass’y
Field ass’y
Spindle
section
Spindle
Helical
gear 45
Ball bearing
6002LLB
1R232
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