Makita M0801B Operating instructions

M0801B
REPAIR MANUAL
Hammer Drill
OFFICIAL USE
For ASC

P 2/ 12
Repair
[1] NECESSARY REPAIRING TOOLS
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
Code No. Description Use for
1R004 Retaining ring pliers ST-2
Ratchet head 12.7 (for 1R223)
1/4” Hex. shank bit for M8
removing / mounting Ring spring 13
1R212-A Tip for Retaining ring pliers
1R212-B Plate set (with screws) removing / mounting Ring spring 13
1R029
1R031
1R139
1R165
1R223
1R224
1R231
1R258
1R278
1R298
Bearing setting pipe 23-15.2 assembling Helical gear 39 to Spindle
Bearing setting pipe 28-20.2 assembling Cam complete to Cam holder
fixing Spindle when removing / mounting Drill chuck
holding Helical gear 39 when separating Spindle from Helical gear 39
holding Cam holder when disassembling/ assembling Cam complete
removing / assembling
Drill chuck
for both 10mm drill chuck and 13mm drill
chuck
for 13mm drill chuck
for 10mm drill chuck
[2] LUBRICATION
Apply Makita grease FANo.2 to the following portions designated with the black triangle to protect parts and product
from unusual abrasion.
Fig. 1
Item No. Description
Spindle a little
a little
3.0g
1.7g
a little
a little
a: Drum portion for smooth hammering in the inner ring
of Ball bearing 6002LLB
b: Spindle end where 10 Steel ball 5 contacts
Steel ball 5
Change lever accepting hole for 10 Steel ball 5
Helical gear 39 c: Teeth portion for smooth engaging with Armature’s gear
d: Cam portion for smooth engaging with Cam on Cam holder complete
Whole portion
AmountPortion to lubricate
5
bc
d
a
5
9
9
10
10
Ball bearing 6002LLB
Compression spring 16
Ring spring 13
Armature
Cam holder
complete
12
12
Drill chuck extractor
Ring spring setting tool B
Torque wrench shaft 20-90N·m
Round bar for arbor 4-50
Hex bar 10 with square socket
134873-0 Bit adapter
V block
disassembling Cam complete from Cam holder
assembling Drill chuck
assembling Drill chuck

P 3/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1A. 13mm Drill chuck
DISASSEMBLING
DISASSEMBLING
ASSEMBLING
ASSEMBLING
Remove 13mm Drill chuck. Fig. 2A
Refer to Fig. 2B.
Remove 10mm Drill chuck. Fig. 2C.
1. Fix 1R139 firmly with vise. secure Hex wrench 10 to
13mm Drill chuck, and then fix the machine to 1R139
by fitting the flat portion of Spindle to the groove of 1R139.
2. Connect Pipe to Hex wrench 10.
3. Turn Pipe counterclockwise.
1. Fix 1R139 firmly with vise. Secure 1R298 to 13mm Drill chuck,
and then fix the machine to 1R139 by fitting the flat portion of
Spindle to the groove of 1R139.
2. Connect 1R224 with 1R223 to 1R298.
3. Turn 1R223 clockwise to 24.5N·m ~ 29.4 N·m (250 kgf·cm ~ 300
kgf·cm).
Fig. 2A
Fig. 2B
Fig. 2C
Refer to Fig. 2D.
Fig. 2D
[3] -1B. 10mm Drill chuck
1R139
Hex wrench 10
Pipe
1. Fix 1R139 firmly with vise. Secure Hex wrench 6 to 10mm Drill chuck,
and then fix the machine to 1R139 by fitting the flat portion of Spindle to
the groove of 1R139.
2. Connect Pipe to Hex wrench 6.
3. Turn Pipe counterclockwise.
1. Fix 1R139 firmly with vise. Secure 1R231 to 10mm Drill chuck,
and then fix the machine to 1R139 by fitting the flat portion of Spindle to
the groove of 1R139.
2. Connect 134873-0 with 1R224 and 1R223 to 1R231.
3. Turn 1R223 clockwise to 24.5N·m ~ 29.4 N·m (250 kgf·cm ~ 300 kgf·cm).
Hex wrench 6
Pipe
1R224
1R298
1R139
1R223
1R139
1R231
1R139
1R139
134873-0
1R224
1R223

P 4/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Helical gear 39, Ball bearing 6002LLB
DISASSEMBLING
(1) Remove Drill chuck. Fig. 2A / 2B
(2) Remove Spindle section from the machine. Fig. 3
Fig. 3
3. Shift Change lever to Hammer
drill mode
1. Shift Change lever to Drill mode. 2. Remove Housing (R) by loosening seven 4x18 Tapping screws.
4. Hold Spindle and Change lever by hand, then lift up Spindle
and Change lever while turning them counterclockwise
viewing them from Drill chuck side.
5. Pull off the Spindle section (Spindle, Ball bearing 6002LLB,
Compression spring 16) from Cam holder complete.
Change lever
Cam holder complete
Housing (R)
4x18 Tapping screw
(7 pcs.)
Change lever
Spindle Change
lever
Spindle section

P 5/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Helical Gear 39, Ball Bearing 6002LLB (cont.)
DISASSEMBLING
(3) Disassemble the removed Spindle section. Fig. 4
ASSEMBLING
(1) Assemble Compression spring 16 and Ball bearing 6002LLB to Spindle. And secure them with Ring spring 13.
(Refer to the lower two illustrations in Fig. 4.)
Note: Apply a little amount of Makita grease FA No.2 to Drum portion of Spindle and in the inner ring of the bearing.
(Refer to [2] LUBRICATION.)
(2) Assemble Helical gear 39 to Spindle. Fig. 5
Fig. 4
3. Ball bearing 6002LLB and Compression spring 16 are secured to Spindle with Ring spring 13.
Remove Ring spring 13 using 1R004 with 1R212-A and 1R212-B. Now, Ball bearing 6002LLB and
Compression spring 16 are removed from Spindle.
1. Put the removed Spindle section onto
1R165 to support Helical gear 39. 2. Remove Helical gear 39 by pressing the Spindle end with Arbor press.
Spindle
1R029
1R165 1R165
Helical gear 39
Spindle Helical gear 39
Spindle end
Ring spring 13 Ball bearing 6002LLB
Ball bearing
6002LLB
Cam portion
1. Set the Spindle section to 1R139. 2. Apply 1R029 to Helical gear 39, and press 1R029 with Arbor press
to assemble the gear to the Spindle section.
Note: Face the cam portion of Helical gear 39 to the opposite side
toBall bearing 6002LLB
Compression spring 16
Fig. 5
1R212-A 1R212-B
1R004

P 6/ 12
Repair
[3] -3. Cam Complete, Change Lever
ASSEMBLING
DISASSEMBLING
(3) Mount the assembled Spindle section to the machine as drawn in Fig. 6.
Fig. 6
Fig. 7
1. Assemble the Spindle section to Cam holder complete. 2. Shift Change lever to Hammer drill mode.
Change lever
3. Hold Spindle and Change lever by hand, and put them
to housing (L) while turning them clockwise viewing
from Drill chuck side.
4. Shift Change lever to Drill mode.
And assemble Housing (R).
Cam holder complete
Spindle Change
lever
Spindle section
Housing (L)
(1) Shift Change lever to Drill mode, and separate Housing (R) from Housing (L) by unscrewing seven 4x18 Tapping
screws. (See the upper two illustrations in Fig. 3.)
(2) Shift Change lever back to Hammer drill mode, and remove the Spindle section from Cam holder complete.
(See the lower illustrations in Fig. 3.)
(3) Disassemble Cam holder complete as drawn in Fig. 7.
Cam holder
complete
Cam holder
complete
Change lever
Steel ball 5
1. Remove Cam holder complete together with
Change lever from Armature. 2. Separate Change lever, Steel ball 5 and Plate 19 from Cam holder complete.
Plate 19
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Helical Gear 39, Ball Bearing 6002LLB (cont.)

P 7/ 12
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Cam complete, Change lever (cont.)
ASSEMBLING
(1) Cam complete can be assembled to Cam holder complete as drawn in Fig. 9.
DISASSEMBLING
(4) Disassemble Cam complete from Cam holder as drawn in Fig. 8.
Fig. 8
Fig. 9
Cam complete
Cam holder
Notch
1R031
Small square mark
1R278
1R258 1R258
Put Cam holder complete onto 1R258, and set 2 pcs. of 1R278 to the holes of Cam holder complete.
And then press 2 pcs. of 1R278 with Arbor press to disassemble Cam complete from Cam holder.
Cam complete
Cam holder
1. Set Cam complete to Cam holder while
aligning the notch of Cam complete
to the small square mark on Cam holder.
2. Put Cam holder with Cam complete onto 2 pcs. of 1R258.
And apply 1R031 to Cam complete, and then press 1R031
with Arbor press.
Cam complete
Cam holder
complete
1R258 1R258

P 8/ 12
Repair
(2) Assemble Change lever to Cam holder complete. Fig. 10
(3) Assemble Cam holder complete to Armature by reversing the Disassembly procedure.
(Refer to the left illustration in Fig. 7.)
ASSEMBLING
Fig. 10
Groove for
fitting Plate 19 Plate 19
1. Assemble Plate 19 to Cam holder complete by fitting it
to the groove in Cam holder complete.
Steel ball 5
2. Apply a little amount of Makita grease
FA No.2 to Change lever at the portion
designated with black triangle.
And mount Steel ball 5 to Change lever.
Projection Projection
Groove
Change lever
Cam side of
Cam holder complete
Change lever
3. Assemble Change lever to Cam holder complete as drawn below.
Note: Fit Projection of the lever to the groove of Cam holder complete
when assembling them.
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Cam complete, Change lever (cont.)

Circuit diagram
P 9/ 12
White
Note:
Brush holder A: Change lever side
Brush holder B: Switch side
Color index of lead wires' sheath
Black Red
Orange Purple
Areas where suppression of radio interference is required
Fig. D-1
Brush holder A
Top
Top view
Left
Left side
view
Brush holder B
Choke coil
(purple)
Choke coil
(orange)
Field
Power supply cord
Switch Switch
Noise
suppressor
Blue lead wire is used
for some countries. Brown lead wire is used for some countries.
Insulated terminal (M3.5)
*AWG: American Wire Gauge
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
20 AWG*
Non-insulated sleeve
＜正転時＞
5－7、8－6が導通
＜逆転時＞
5－6、8－7が導通
56
7
8
L1
N3
3
3
2
4
Main switch
Switch circuit
Reversing switch <Forward rotation>
Continuity: 5-7, 8-6
<Reversing rotation>
Continuity: 5-6, 8-7
3
3
2 8 : Soldered-

Switch
Wiring diagram
P 10/ 12
Wiring in Housing set (L)
Areas where suppression of radio interference is required
Setting of Brush holders
Fig. D-2
Brush holder
Rib A
Rib B
Housing (L)
Put Brush holders as drawn below so that the Lead wires
can be connected to them approaching from rear side.
Switch
Change lever side
Window of
Brush holder
Brush holder
Brush holder
While facing the window of Brush holder
to Housing (L) side, put it in the position
of Change lever side.
While facing the window of Brush holder
to Housing (R) side, put it in the position
of Switch side.
Power supply cord
Noise suppressor
Put Choke coil (purple) in the position
shown below.
Put Choke coil (orange)
in the position
shown in the right.
Fix Field lead wires (black)
with this Lead wire holder.
Put Field lead wires and
Power supply cord (brown
or black) between Rib A
and Rib B.
Put Noise suppressor
in the position
shown in the right.
Put Field lead wires (black, white)
under Brush holder.

P 11/ 12
Circuit diagram
White
Note:
Brush holder A: Change lever side
Brush holder B: Switch side
Color index of lead wires' sheath
Black Red
Orange Purple
Areas where suppression of radio interference is not required
Fig. D-1A
Brush holder A
Top
Top view
Left
Left side
view
Brush holder B
Field
Power supply cord
Switch Switch
Blue lead wire is used
for some countries. Brown lead wire is used for some countries.
Insulated terminal (M3.5)
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
18 AWG*
Non-insulated sleeve
*AWG: American Wire Gauge
＜正転時＞
5－7、8－6が導通
＜逆転時＞
5－6、8－7が導通
56
7
8
L1
N3
3
3
2
4
Main switch
Switch circuit
Reversing switch <Forward rotation>
Continuity: 5-7, 8-6
<Reversing rotation>
Continuity: 5-6, 8-7
3
3
2 8 : Soldered-
3 5
, ,

Wiring diagram
P 12/ 12
Wiring in Housing set (L)
Areas where suppression of radio interference is not required
Setting of Brush holders
Fig. D-2A
Brush holder
Rib A
Rib B
Housing (L)
Put Brush holders as drawn below so that the Lead wires
can be connected to them approaching from rear side.
Switch
Change lever side
Window of
Brush holder
Brush holder
Brush holder
While facing the window of Brush holder
to Housing (L) side, put it in the position
of Change lever side.
While facing the window of Brush holder
to Housing (R) side, put it in the position
of Switch side.
Power supply cord
Fix Field lead wires (black)
with this Lead wire holder.
Put Field lead wires and
Power supply cord (brown
or black) between Rib A
and Rib B.
Put Field lead wires (black, white)
under Brush holder.