Makita BTD129 Manual

Models No.
Description
PRODUCT
CONCEPT AND MAIN APPLICATIONS
P 1/ 12
BTD129 (LXDT08)*1
Cordless Impact Driver
Specification
Standard equipment
Optional accessories
Note: The standard equipment for the tool shown above may vary by country.
See the model variation list in the next page.
Model BTD129 (LXDT08*1) Cordless Impact Driver has been developed specially for
light to medium duty fastening applications.
This model is equipped with a basic BLDC motor (BrushLess DC motor) specially
designed to provide, above all, more work amount on a single full battery charge.
This product is powered by 18V-1.3(1.5*4)Ah/ 3.0Ah Li-ion batteries BL1815/ BL1830,
and available in the variations listed in the next page.
Battery
No load speed: min.ˉ¹=rpm
Impacts per min.: min.ˉ¹=ipm
Max. fastening torque*5:
N.m (kgf.cm/ in.lbs)
Charging time (approx.): min.
Capacities
Electric brake
Reverse switch
Weight according to
EPTA-Procedure 01/2003: kg (lbs)
Variable speed control by trigger
Capacity: Ah
Cell
Voltage: V 18V
0 - 2,500
0 - 3,200
160 (1,630/ 1,420)
Standard bolt
High tensile bolt
Machine screw
Driving shank
M5 - M14 (3/16 - 9/16")
M5 - M12 (3/16 - 1/2")
Coarse thread screw 22 - 125mm (7/8 - 4-7/8")
M4 - M8 (5/32 - 5/16")
Yes
Yes
Yes
LED job light Yes
1.3 (2.9)/ 1.5 (3.4)
1.3 (1.5*4)/ 3.0
Energy capacity: Wh 24 (2.7*4)/ 54
Li-ion
220
15/ 22 with DC18RC (DC18RA*4)
6.35mm (1/4") Hex
Max output (W)
*4for some countries only
*5The fastening torque at 3 seconds after seating, when fastening M14 high tensile bolt
*1 Model number for North and Central American countries
H
W
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 147 (5-7/8)
79 (3-1/8)
226 (8-7/8)*2
244 (9-5/8)*3
*2: with Battery BL1815
*3: with Battery BL1830
Phillips bits
Socket bits
Drill chucks
Bit piece
Hole saws for Impact driver
Stopper for Impact driver
Hook set (Belt clip)
Drill bits with 6.35mm Hex shank
Battery protectors
Li-ion Battery BL1830
Li-ion Battery BL1815
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
L
[Drawn above is the image
with BL1830.]
TECHNICAL INFORMATION

P 2/ 12
Variation list
BTD129RFE
BTD129RHE
Model No.
Type Quantity
Plastic
carrying
case
Battery
cover
Battery
No NoBTD129Z No
2 1
No
Yes
Yes
Yes
DC18RC
Charger
No
No YesNo NoNo
YesBL1830 Yes
Yes
Yes
2 1DC18RC
BTD129ZK
BL1815
BTD129SHE 2 1 YesDC18SD BL1815
BTD129
Model No. Quantity
Battery
LXDT08Z NoNoNo No Yes
LXDT08 Yes2BL1830 1 Yes
Yes
No
DC18RA
LXDT08C1 Yes2BL1815 1DC18SD
*1 Model number for North and Central American countries
LXDT08*1
Belt
clip
Type
Plastic
carrying
case
Battery
cover
Charger Belt
clip

Repair
Apply Makita grease FA No.2 to the following portions indicated by the black triangle to protect
parts and product from unusual abrasion.
[1] NECESSARY REPAIRING TOOLS
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
Code No. Description Use for
1R045 Gear extractor (large) Disassembling/ assembling Hammer section
1R232 Pipe 30 Holding hammer case when removing/ assembling Bit holder section
1R288 Screwdriver magnetizer Magnetizing a screwdriver for easy removal of Steel ball 5.6
1R291 Retaining ring S and R pliers Removing/ mounting Ring spring 11 of Bit holder section
[2] LUBRICATION
Fig. 1
DescriptionItem No. Grease
Makita
FA No.2
AmountPortion to lubricate
2 g
19
Hammer case
Anvil
Flat washer 24
Steel ball 5.6 a little
Drum portion that contacts Sleeve and O ring 14 of Hammer case
complete
Surface that contacts 24 pcs. of Steel ball 3.5
Whole portion
Spur gear 22
Steel ball 3.5
(24 pcs.)
a
c
Insertion hole for Armature for smooth engaging with Spur gear 22
b
Spindle
Tip portion to be inserted into the hole of Anvil
Surface that contacts Hammer
22
19
22
25
25
27
27
a
c
b
P 3/ 12

Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Rotor
DISASSEMBLING
Fig. 2
Hammer case
complete
1. By unscrewing four 4x25 Tapping screws,
remove Hammer case complete.
2. By unscrewing 8 pcs. of 3x16 Tapping screws,
remove Housing (R).
3. Separate Rotor section (Rotor and Stator)
from Internal gear case complete.
Housing (R)
Disassemble Rotor. (Fig. 2)
4x25 Tapping screw
(4 pcs.)
3x16 Tapping screw
(8 pcs.)
4. Put Rotor section on a workbench so that the drive end
of Rotor touches the workbench.
Press Stator down to separate it from Rotor.
Rotor
Stator
Stator
Rotor
Internal gear case
complete
Rotor section
Caution for Handling of Rotor
Fig. 3R Fig. 3F
* Magnetic loss of Rotors
* Damage on the magnet portion of Rotors
When handling or storing multiple Rotors, be sure to keep a proper distance between Rotors as shown in Fig. 3R because
Rotor has a strong magnet, failure to follow this instruction could result in:
• Finger injury caused by pinching between Rotors pulling each other.
• Magnetic loss of Rotors or damage on the magnet portion of Rotors. (Fig. 3F)
P 4/ 12

Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Rotor (cont.)
(2) Before pushing Rotor section (Rotor and Stator) fully in Internal gear section, make sure that Rotor’s gear engages
with the two Super gears 22 of Internal gear section to rotate Spindle smoothly.
And then, mount them to Housing (L). (Fig. 5)
(3) Before assembling Switch to Housing (R), do not forget to mount F/R change lever to Switch. (Fig. 6)
(1) Assemble Rotor in the reverse order of disassembly. (Refer to Fig. 2)
Note: Be careful not to pinch your fingers between Stator and Rotor’s fan when assembling them. (Fig. 4)
ASSEMBLING
Fig. 4
Fig. 5
Fig. 6
1. Holding Stator on workbench, insert Rotor into Stator slowly
until the drive end of Rotor reaches the workbench.
2. When the drive end of Rotor reaches
the workbench, lift up Stator slowly.
Rotor
Stator
Stopper projection of
Internal gear case complete
Mount Internal gear case section and Rotor section to
Housing (L) with the stopper projection on the groove.
Make sure that the ribs of Housing (L) are
fitted tightly in the notches of Stator.
Groove of Housing (L)
Stator
Notch of
Stator
Notch of
Stator
Rib
Rib
Housing (L)
Housing (L)
projection
prong portion
Engage the prong portion of F/R Change
lever with the projection of Switch
when assembling them to Housing (R).
P 5/ 12

Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Anvil and Bit holder section
DISASSEMBLING
Sleeve
Hammer case
complete
Anvil
Use 1R232 for holding Sleeve firmly
for easy removal of Ring spring 11.
1R232
Ring spring 11
Fig. 7 Fig. 8
Fig. 9
Ring spring 11
Press the top of Sleeve with
thumb so as not to allow
Compression spring 13
to pop out and away.
Expand the end gap of
Ring spring 11 with 1R291.
(1) Disassemble Hammer case complete from Housing set. (Refer to Fig. 2)
(2) Disassemble Bit holder section. (Figs. 7, 8 and 9)
Sleeve
Steel ball 3.5 (2psc.)
Compression spring 13
Flat washer 12
Sleeve
Hammer case complete
Nylon washer 14
Anvil
Anvil
1R232
Flat washer 12, Compression spring 13 and
Sleeve can now be removed from Anvil.
Anvil and Nylon washer 14 can now be removed from
Hammer case complete.
Be careful not to lose Steel balls 3.5.
Assemble in the reverse order of disassembly. (Refer to Figs. 9, 8 and 7)
ASSEMBLING
Raise this side of Ring spring 11 with index finger to remove it.
P 6/ 12

Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Hammer Section
DISASSEMBLING
Fig. 10
(1) Remove Hammer case complete and Housing (R). (Refer to Fig. 2)
(2) Separate Hammer section from Internal gear case complete. (Fig. 10)
(3) Disassemble Steel balls 5.6. (Fig. 11)
Hammer section
Internal gear case complete
2. Hold Hammer section as shown below in Fig. 11R, and
then release it from 1R045.
Caution: Do not hold Hammer section as shown below
in Fig. 11F when releasing Hammer section
from 1R045. Failure to follow this instruction
could cause Steel balls 3.5 to fall out from it.
Fig. 11
Fig. 11R Fig. 11F
1. Pull Hammer downwards using 1R045
to align the opening for Steel ball insertion
with the top of the cam grooving on Spindle,
and then remove Steel balls 5.6 from Spindle.
Hammer
1R045
Spindle
Top of the
cam groove
on Spindle
Opening for
Steel ball
insertion
Steel Ball 5.6
(2pcs.)
P 7/ 12

Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -3. Hammer Section (cont.)
DISASSEMBLING
(4) Now Hammer section is disassembled as drawn in Fig. 12.
Flat washer 12
Pin 5
Spindle
Spur gear 22
Hammer
Flat washer 24
Compression
spring 24
Cup washer 14
Steel ball 3.5
(24 pcs.)
Spindle section
1. Hammer section can now be disassembled as shown below. 2. After removing Flat washer 24,
Steel balls 3.5 can be removed
from Hammer.
Fig. 12
Fig. 13
Hammer
Assemble in the reverse order of Disassembly. (Refer to Figs. 12, 11 and 10)
Note in Assembling:
Before putting Flat washer 24 in Hammer, make sure that twenty-four Steel balls 3.5 are put in the groove of Hammer
as shown in Fig. 13.
ASSEMBLING
Hammer and Steel balls 3.5,
viewed from above
Hammer
Steel balls 3.5
There will appear a space equivalent to
one Steel ball 3.5 in the groove of Hammer
when twenty-four Steel balls 3.5 are put
in place.
P 8/ 12

Fig. D-1
Circuit diagram
Color index of lead wires' sheath
Black
White
Red
Orange
Blue
LED Light
Yellow
Controller
Stator
Printed
wiring
board
Switch
Terminal
Terminal
Connector B1B2
Connector
P 9/ 12

Wiring diagram
Wiring of LED Lead wire
Wiring to Switch
Housing (L)
Flag connectors of Lead wires must be connected to
Switch so that their wires come to Housing (L) side.
Flag connectors
Switch
Lead wires
LED Lead wires must be tightened between LED
bushing and Lead wire holder when routing these
wires between the following Ribs and Boss:
* the space between Ribs A and C
* the space between Ribs A and B
* the space between Ribs A and D
* the space between Rib A and Boss
LED bushing
Rib A
Rib C
Pin
Rib D
Boss
Lead wire
holders
Rib B
Fig. D-2
Fig. D-3
LED Lead wires must be routed around Pin.
Fix LED lead wires with either of
two Lead wire holders.
P 10/ 12

Wiring diagram
Wiring in Housing (L)
Fig. D-4
Stator
Terminal
Controller
Switch
Be careful not to put
Lead wires on these Ribs.
Be careful not to put
Connecting terminals
under or on Capacitor.
Printed wiring
board
Boss
Capacitor
Rib A
Rib D
Rib B
projection
of Controller
Projection
of Controller
Housing (L)
Housing (R) side
Controller
Terminal
While routing Lead wires connecting to
Terminal over the projection of Controller,
assemble Controller and Terminal to
Housing (L).
Be careful not to put Lead wires
on Ribs A, B and D.
Connecting terminal
Be careful not to put
Lead wires on this Boss.
Put the slack portion of Lead wires
of Stator and those of Printed wiring
board in this place.
Put one or more Lead wires
of Stator into both Lead wire
holders.
Route Lead wires of Circuit
board and those of Stator
between Rib A and Boss.
Fix Lead wires of Stator and
those of Circuit board in the
bottom of either Lead wire
holders.
P 11/ 12

Wiring diagram
Wiring and Mounting of
Printed Wiring Board to Stator
Fig. D-5
Insulator
Lead wires of Printed wiring board must be faced
to the opposite side of Lead wires of Stator.
Stator
Printed wiring board
Printed wiring board
By fastening four screws, assemble Printed wiring
board to Insulator without wobbling.
Note: The screws must be tightened to 0.3N·m of
torque.
Lead wires
of Stator
Lead wires of
Printed wiring board
Four Screws
Four Screws
P 12/ 12