Makita BTM40 Manual

Models BTM40, BTM50 are
DC multi tools to compete with the Competitor F’s
Models F1-AC/ F2-AC.
These models have been developed for commercial use,
and their high performance will satisfy professional users
accustomed to AC multi tools.
These products are powered by the following Li-ion batteries:
BTM40 by BL1415/ BL1430 (14.4V-1.3/ 3.0Ah)
BTM50 by BL1815/ BL1830 (18V-1.3*2/ 3.0Ah)
BTM40, BTM50
Model No.
Description
CONCEPT AND MAIN APPLICATIONS
Specification
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 307 (12-1/4)*3/ 324 (12-3/4)*4
80 (3-1/8)
122 (4-13/16)104 (4-1/8)
BTM50BTM40
DC Multi tools
Standard equipment
Note: The standard equipment for the tool shown above may vary by country.
Oscillating multi tool accessories
[equivalent to the Competitor B’s B-system] ............................... 1
Adapter A ....................................................................................... 1 (for some countries only)
Adapter C ....................................................................................... 1 (for some countries only)
Tool box (for storing oscillating multi tool accessories) ................ 1 (for some countries only)
Hex wrench ..................................................................................... 1
Dust attachment set ......................................................................... 1 (for some countries only)
Plastic carrying case or Tool bag .................................................... 1 (for some countries only)
Optional accessories
Weight according to
EPTA-Procedure 01/2003: kg (lbs)
1.7 (3.8)*7, 1.8 (4.0)*8/
1.9 (4.2)*7, 2.0 (4.4)*8
1.8 (3.9)*7, 1.9 (4.1)*8/
2.0 (4.4)*7, 2.1 (4.6)*8
YesVariable speed control by dial
Anti-restart function
Oscillations per minute: opm=minˉ¹
Oscillating multi tool accessories
*5: for some countries only
*6: for North and Central American countries
*7: with Battery and Vacuum attachment, without Sanding pad
*8: with Battery, Sanding pad, and Vacuum attachment
6,000 - 20,000
Oscillation angle, left/right: degree [°] 1.6 (3.2 total)
Makita oscillating multi tool accessories
equivalent to the Competitor B’s B-system
Soft start Yes
Electronic control
Yes
Oscillating multi tool accessories
[equivalent to the Competitor B’s B-system]
Tool box (for storing oscillating multi tool accessories)
Dust attachment set
Triangular abrasive papers (Hook & loop type)
Adapter A
Adapter C
Li-ion battery BL1415 (for BTM040)
Li-ion battery BL1430 (for BTM040)
Li-ion battery BL1815 (for BTM050)
Li-ion battery BL1830 (for BTM050)
Fast charger DC18RA
(for USA, Canada, Guam, Panama, Colombia, Mexico)
Fast charger DC18RC
(for all countries except the countries above)
Charger DC18SD
Charger DC24SC
Automotive charger DC18SE
PRODUCT
P 1/10
These new products are available in several variations
with various accessories by country.
W
L
H
BTM40*4
BTM50*4
Specification Model
Battery
Cell
Voltage: V
Capacity: Ah
Li-ion
14.4 18
BTM40 BTM50
1.3 (1.5*5)/ 3.01.3/ 3.0
Max output: W 300280
Energy capacity: Ah 24 (27*5)/ 5419/ 44
15/ 22 with DC18RC (DC18RA*6)Charging time (approx.): min.
YesLED Job light
TECHNICAL INFORMATION
*3 with 1.3Ah Li-ion battery of BL1415 or BL1815
*4 with 3.0Ah Li-ion battery of BL1430 or BL1830
*2 1.5Ah for some countries
OFFICIAL USE
for ASC & Sales Shop

P 2/10
Repair
Apply Makita grease N. No.1 to the following portions designated with the black triangle to protect
parts and product from unusual abrasion.
[3] DISASSEMBLY/ASSEMBLY
[3] -1. DC Motor
[1] NECESSARY REPAIRING TOOLS
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
Code No. Description Use for
1R003 Retaining ring S pliers ST-2N Removing Bearing box
1R232 Pipe 30 Supporting Bearing box when removing Crank shaft section
1R269 Bearing extractor Removing Ball bearing 6000DDW and Sphere bearing 706
1R291 Retaining ring S and R pliers Removing Retaining ring S-7 from Crank shaft
[2] LUBRICATION
(1) Remove Battery housing and Handle cover from Motor housing. (Fig. 2)
DISASSEMBLING
Fig. 1
Item No. Description Grease
Crank housing complete
Head cover (L)
Head cover (R)
Retaining ring S-7
Crank shaft
Bearing retainer
Bearing box Makita grease N No.1
Molybdenum disulfide lubricantSphere bearing 706 Outer race
Amount
Portion to lubricate
Outer surface
a little
a little
Fig. 2
4x18 Tapping screw
(2 pcs.)
1. Remove Battery housings (R) and (L)
by unscrewing two 4x18 Tapping screws.
Then remove two Cushion rubbers.
2. Remove Handle cover by unscrewing
four 3x16 Tapping screws.
3x16 Tapping screw
(4 pcs.)
Cushion rubber
Handle cover
Battery housing (R)
Battery housing (L)
: Makita grease N No.1
: Molybdenum disulfide lubricant
12
14
14
12
Motor housing

P 3/10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. DC Motor
Fig. 3
(2) Remove Crank housing complete from Motor housing. (Fig. 3)
DISASSEMBLING
Terminal of DC motor
Flag terminal of Controller unit
2. Remove Head cover (R) from Crank housing complete
by unscrewing four 3x16 Tapping screws.
1. Disconnect Connector of LED light circuit from
that of Controller unit, then disconnect Flag terminals
of Controller unit from Terminal of DC motor.
Head cover (R)
Head cover (L)
3. Pull out the lead wires of LED light circuit from
Motor housing, then remove LED light circuit from
Head cover (L).
4. Head cover (L) can now be removed from
Crank housing complete.
5. Remove Crank housing complete by unscrewing
four 4x25 Tapping screws.
LED light circuit
Crank housing complete
4x25 tapping screw
(4 pcs.)
Motor housing
Head cover (L)
LED light circuit
Head cover (L)
Connector of
Controller unit
Connector of
LED light circuit
Motor housing
Crank housing
complete
3x16 tapping screw
(4 pcs.)

P 4/10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. DC Motor
Fig. 4
Fig. 5
(3) Disassemble DC Motor as described in Fig. 4.
DISASSEMBLING
ASSEMBLING
pin
When mounting Housing cover
on DC motor, align the pin of
Housing cover with the slit of
DC motor.
slit
Before assembling Crank housing complete
and Motor housing together, make sure that
O ring 8 is mounted in place on Crank shaft.
When assembling Crank housing complete and Motor housing together,
engage Crank shaft with the coupling portion of Motor shaft.
Before mounting Crank housing complete
on Motor housing, make sure that Crank
housing caps A and B are mounted in place
on Crank housing complete.
1. Remove DC motor section from Motor housing by gently tapping
the end surface of Motor housing.
2. Remove Housing cover from DC motor
by removing two M4x12 Pan head screws.
Housing cover
M4x12 Pan head screw*
(2 pcs.)
*Thread locking type
Assemble DC motor section by reversing the disassembly procedure.
See Fig. 5 for Noets in Assembly.
Crank housing cap B
Crank housing cap A
Crank housing complete
Note: If Cap remains in
Motor housing, pull it out
with pliers.
Cap
Noets in Assembly
If you reuse the removed M4x12
Pan head screws, apply either of
the following two thread lockers
to the threads of the screws:
• ThreeBond 1342
• Loctite 242
DC motor
O ring 8
Crank shaft
Motor shaft

P 5/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Bearing Box Section and Crank Housing Section
Fig. 6
DISASSEMBLING
1. Remove O ring 8 from Crank shaft, then remove Bearing retainer
by unscrewing three M4x12 Hex socket head bolts.
(1) Disassemble Crank housing complete from Motor housing. (Fig. 3)
(2) Remove Bearing box section from Crank housing complete, then remove Crank shaft from Bearing box. (Fig. 6)
Note:
1. No need to remove Battery housings (R) and (L) and Handle cover.
2. You must replace Crank housing complete as a unit, because it is a
factory-assembled part and cannot be disassembled.
Bearing box section can be assembled by reversing
the disassembly procedure. (Fig. 6)
ASSEMBLING
Note in Assembling:
Do not forget to mount O ring 8 onto Crank shaft.
(Fig. 7)
M4x12 Hex socket
head bolt (3 pcs.)
2. Insert the tips of 1R003 into the pin holes
of Bearing box, then pull out Bearing box
from Crank housing complete while
turning it with 1R003.
1R232
Crank section
3. Remove Retaining ring S-7 from Crank shaft with 1R291,
then remove Crank section from Bearing box using
arbor press and 1R232.
4. From Crank shaft, remove Sphere bearing 706,
then remove Ball bearing 6000DDW with 1R269.
Bearing box
Crank shaft
Sphere bearing 706
Ball bearing 6000DDW
Crank shaft
1R269
Bearing retainer
O Ring 8
Crank housing
complete
O ring 8
Fig. 7
Crank shaft
Crank housing section
1R003
Bearing box
Retaining
ring S-7
1R291

P 6/10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Switch Lever
Fig. 9
Fig. 8
DISASSEMBLING
Switch lever can be seen by removing from Motor housing
the following five electrical parts:
Controller, Switch, Battery capacity warning lamp,
Dial 28, Terminal.
Switch
Switch lever
Controller
Dial 28
Terminal
Battery capacity
warning lamp
(1) Remove Crank housing complete from Motor housing.
(Figs. 2,3)
Then remove Motor section from Motor housing.
(Fig. 4)
(2) Remove electrical parts (Fig. 8), then remove Switch
lever and Switch knob. (Fig. 9)
Switch knob Switch lever
1. Pressing the locking claws of Switch knob inward with small nose pliers,
push Switch knob off from Motor housing.
locking claw
2. Switch lever can now be removed from Motor housing by bending Switch lever
to release its rear end from the ribs on Motor housing then pulling it toward
Battery cover side (in the direction of the black arrow).
Motor housing
Switch lever

P 7/10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Switch Lever
Fig. 10
ASSEMBLING
Mount Switch lever and Switch knob on Motor housing. (Fig. 10)
3. Pressing Switch lever against Motor housing, insert the locking claws of Switch knob into the locking hole of
Switch lever.
2. Bending the rear end of Switch lever, slide Switch lever into
Motor housing as drawn below.
Compression spring 5
1. Make sure Compression spring 5 is
mounted on the back of Switch lever.
Switch lever
Switch knob
locking claw
locking hole
Switch knob’s locking claws,
locked in place
Motor housing

P 8/10
Fig. D-1
Fig. D-2
Wiring diagram
Circuit diagram
wire connecting
portion
Connecting Controller with Terminal
Flag terminal
Terminal
pole marking
Each Flag terminal must be so connected with
Terminal that its wire connecting portion
is located over the pole marking of Terminal.
White
Blue
Yellow
Color index of lead wires' sheath
Black
Red
DC Motor
red dot marking
LED Light circuit
Line filter*
* Line filters are not used
for some countries.
Line filter*
Connector of
LED Light circuit
Connector of Controller unit
Battery capacity warning lamp
Terminal
Controller unit
Fig. D-3
If connected as shown below,
Lead wires interfere with
Handle cover.
Connecting Controller with Switch
Controller
The electrical parts and wires indicated
by the gray shaded area are component
parts of Controller unit.
Switch
Switch
Dial
[Wrong]
Insulated terminals must be
so connected with Switch
that the Lead wires are placed
on Switch tumbler side.
[Correct]
Switch tumbler
Switch
Insulated terminal

P 9/10
Fig. D-4
Wiring diagram
Fig. D-5
Battery capacity
warning lamp
plus Terminal of DC Motor
with a red dot for identification
minus Terminal of DC Motor
Flag terminal
Connect each Flag terminal of Controller with
the corresponding Terminal of DC Motor.
Important:
• The wire connecting portion of
each Flag terminal must be placed
on Handle cover side.
• Connect the Flag terminal on red lead wire
with plus terminal of DC Motor.
Line filter
(if used)
wire connecting
portion
rib
wall of Motor housing
Lead wire (black)
Lead wire (red)
Wiring in Motor Housing
Connecting Controller with DC Motor
ControllerLine filter (if used)
boss
Battery capacity
warning lamp
Put Battery capacity warning lamp in this groove
with the black Lead wire on the top.
After connecting the Connector of LED light circuit with
that of Controller unit, put the Connectors and the Lead wires
between the two ribs and the wall of Motor housing.
Fix Switch with this hook.
Do not route any Lead wire
over these ribs.
Route the Lead wires of
Controller unit between
the boss and Switch box.
Put Line filter in this place
if it is used.
Line filter (if used)
Put Line filter in this place
if it is used.
Route three Lead wires
(1 red, 1 blue, 1 white)
connecting Controller
and Dial in this groove.
Dial
Switch
Connector of
LED Light circuit
Connector of
Controller unit

P 10/10
Wiring diagram
Fig. D-6
Crank housing complete
Head cover (L)
wire connecting
portion
LED light circuit
wall rib
boss A
boss B
Wiring Lead Wires of LED Light Circuit in Head Cover
Put LED light circuit in place in Head cover (L)
with the wire connecting portion on Head cover (L) side.
Route the tube covering the Lead wires
between boss A and boss B.
Put the slack portion of the Lead wires
in this shaded area.
tube covering
Lead wires of
LED light circuit
LED Light circuit
Motor housing
Housing cover
Route the tube covering the Lead wires
between the rib and the wall and
between the pin and the wall.
pin
Fix the Lead wires
in this Lead wire holder.
Route the tube covering the Lead wires
through the space between Motor housing
and Housing cover.