T
OFFICIAL USE
for ASC & Sales Shop
ECHNICAL INFORMATION
Models No.
BTD145
Description
Cordless Impact Driver
PRODUCT
P 1/ 10
L
CONCEPT AND MAIN APPLICATIONS
Model BTD145 Cordless Impact Driver is an advanced version of
Model BTD144, featuring the same BLDC motor (BrushLess DC
motor) and electronic 3-stage impact power settings with variable
power control in each range as BTD144, plus redesigned belt clip
for more convenience and improved switch and electronic controller
for higher durability.
For differentiation from BTD144, equipped with transparent hammer
case cover and three stripes printed next to the "BL motor" logo.
This product is powered by 18V/ 1.3Ah Li-ion battery BL1815 and
18V/ 3.0Ah Li-ion battery BL1830.
Dimensions: mm (")
139 (5-1/2)*2
Length (L)
140 (5-1/2)*3
Width (W) 79 (3-1/8)
Height (H) 236 (9-1/4)*4
218 (8-5/8)*5
*2: with One-touch bit holder
*3: with Standard bit holder
*4: with Battery BL1830
*5: with Battery BL1815
This product is available in the following variations.
Battery
Battery Charger
Plastic
Belt
Model No.
type
quantity cover
carrying case clip
BTD145Z
No
--BTD145RFE
BL1830
(Li-ion 3.0Ah)
---
No
No
No
No
2
1
DC18RA
Yes
Housing
color
H
W
Offered to
All countries except
the four described below
USA,
Canada, Mexico, Panama
Yes Makita-blue
All countries except
the four described below
USA, Canada, Mexico, Panama
Specification
Battery
Voltage: V
Capacity: Ah
Cell
Charging time (approx.): min.
18V
1.3/ 3.0
Li-ion
15/ 22 with DC18RA
30/ 60 with DC18SD, DC18SE
240
6.35mm (1/4") Hex
M4 - M8 (5/32 - 5/16")
M5 - M14 (3/16 - 9/16")
M5 - M12 (3/16 - 1/2")
22 - 125mm (7/8 - 4-7/8")
0 - 3,400/ 2,800/ 1,300
0 - 2,600/ 2,000/ 1,300
165 (1,680/ 1,460)
Yes
Electronic 3 stage
Yes
Yes
Yes
Max output (W)
Driving shank
Machine screw
Standard bolt
Capacities
High tensile bolt
Coarse thread screw
Impacts per min.: min.-1=ipm
No load speed: min.-1=rpm
Max. fastening torque*6: N.m (kgf.cm/ in.lbs)
Electric brake
Speed selection (Impact power selection)
Variable speed control by trigger
Reverse switch
LED job light
Weight according to
1.3 (2.8)
EPTA-Procedure 01/2003*7: kg (lbs)
*6 Catalog value (torque at 3 seconds after seating, when fastening M14 high tensile bolt)
*7 with Battery BL1815
Standard equipment
See the model variation list above.
Note: The standard equipment for the tool shown above may differ by country.
Optional
accessories
Shoulder belt
Drill chucks
Stopper set (w/o Bit)
Stopper set (w/ Bits)
Battery protector
Hook set (Belt clip)
Bit piece
Phillips bits
Socket bits
Connecting bit 6.35-48
Tool holder
Li-ion battery 1830
Li-ion battery 1815
Fast charger DC18RA
Charger DC18SD
Charger DC24SC
Automotive charger DC18SE
Automatic refreshing adapter ADP03
P 2/ 10
Repair
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
[1] NECESSARY REPAIRING TOOLS
Description
Code No.
Use for
1R346
1R223
Vise plate
Gear extractor (large)
Center attachment for 1R045
Torque wrench shaft
1R224
Ratchet head for 1R223
1R232
Pipe 30
Screwdriver Magnetizer
Retaining Ring S and R Pliers
1R041
1R045
1R288
1R291
Disassembling of Hammer case
Disassembling of Hammer
Disassembling of Hammer case
Disassembling of Bit holder section
Removing Steel balls
Removing ring spring 11 from Bit holder section
134847-1 Socket 30 -78
134848-9 Socket 32 -50
Disassembling of Hammer case
[2] LUBRICATIONS
Apply the following grease to protect parts and product from unusual abrasion.
Item No.
Description
Portion to lubricate
Lubricant
16
Hammer case complete Inside of Sleeve 14 which touches 19
19
Anvil
Hole into which 27 Spindle top is inserted
21
Steel ball 3.5 (24pcs.)
Whole portion
25
Steel ball 5.6 (2pcs.)
Whole portion
27
Spindle
Hole into which Armature's drive end is inserted
to engage Spur gear 22
28
Pin 5 (2pcs.)
Whole portion
Fig. 1
Amount
Makita grease FA. No.2
a little
Makita grease N. No.2
2g
a little
Sleeve 14 (The component of 16 )
16
19
21
Nylon washer 14
25
Hammer
Spur gear 22
Flat washer 24
27
Compression spring 25
Cup washer 14
25
Flat washer 12
28
P 3/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Hammer case complete
DISASSEMBLING
(1) Remove Bumper and Hammer case cover from Hammer case complete. (Fig. 2)
(2) Remove Hammer case complete as illustrated in Fig. 3. And disassemble Hammer case complete as illustrated in
Figs. 4 and 5 in the next page.
Fig. 2
1. Remove Bumper, then remove the hooks of Hammer
case cover from the grooves of Hammer case complete.
2. Hammer case cover can be removed from
Hammer case complete.
Bumper
hook of Hammer
case cover
hook of Hammer
case cover
Hammer case cover
Hammer case complete
Fig. 3
Hammer case complete
Motor section
Housing
set (L)
Housing set (R)
3x16 Tapping screw
(9pcs.)
After remove Housing set (R) by loosening nine 3x16 Tapping screws,
remove Hammer case complete together with Motor section from Housing set (L).
Pull off Motor section from
Hammer case complete.
Fig. 4
Hammer case complete
Fit the hexagonal
portion into Socket
30-78 (134847-1).
Bearing box complete
Fit this hexagonal
portion into Socket
32-50 (134848-9).
1R041
Socket 32-50
(134848-9)
Vise
1R223
Socket
30-78
(134847-1 )
1R224
Turn 1R223
clockwise.
P 4/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Hammer case complete (cont.)
DISASSEMBLING
Fig. 5
Bearing box complete
Hammer case
complete
Hammer section
Internal gear 51
O ring 40
ASSEMBLING
(1) Assemble Hammer case section as illustrated in Figs. 6, 7, 8 and 9.
(2) Do the reverse of the disassembling steps. Refer to Fig. 3 to 2.
Fig. 6
Fig. 7
1. Put O ring 40 into the groove of Bearing box
complete.
2. Put the inner ring portion
of Internal gear 51 on
O ring 40 in Bearing box
complete.
Groove of Bearing
box complete
stopper portion
Hammer case
complete
1. While engaging Spur gear
22 with Internal gear 51,
set Hammer section in place.
Hammer section
Spur gear 22
Bearing box
complete
2. Align the stopper portion with
either of protrusion of Internal
gear 51 and put Hammer case
complete to Bearing box
complete.
protrusion of Internal gear 51
Socket 32-50
(134848-9)
Socket 32-50 (134848-9)
Fig. 8
Fig. 9
Turn 1R223 counterclockwise.
Note: The fastening torque has to be 30 - 40 N.m.
Bottom view of
Hammer case complete
stopper portion
Internal gear 51
1R224
Socket 30-78 (134847-1)
Hammer case complete
Hammer case
complete
Bearing box complete
P 5/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Hammer case complete (cont.)
ASSEMBLING
(3) Join Motor section to Hammer case complete and engage Armature’s drive end with Spur gear 22.
Refer to right illustration in Fig. 3.
(4) After assembling Hammer case complete and Motor section to Housing set (L), assemble Housing set (R).
Refer to left illustration in Fig. 3. And then, assemble Hammer case cover. Refer to Fig. 2.
(5) Mount Bumper as illustrated in Fig. 10
Fig. 10
hexagonal portion of
Hammer case complete
hooks of Hammer case cover
Bumper
inner notches
Fit the inner notches of Bumper to the hooks of Hammer
case cover, and fit the inner hexagonal step of Bumper
to the hexagonal portion of Hammer case complete.
inner hexagonal step
[3]-2. Bit holder section and Anvil
DISASSEMBLING
(1) Disassemble Hammer case complete. See Fig. 2 to 5.
(2) Put Hammer case complete on 1R232 to disassemble Ring spring 11 easily. See Fig. 11.
(3) Remove Ring spring 11 as illustrated in Fig. 12. Bit holder section can be disassembled as illustrated in Fig. 13.
Fig. 11
Fig. 12
Ring spring 11
Raise this side (opposite to the expanded side) with index finger.
Sleeve
Ring spring 11
Anvil
Hammer case
complete
1R232
Use 1R232 to stabilize Sleeve
in the position where Ring spring 11
can be easily removed.
Slide the top of Sleeve
with thumb.
Expand Ring spring 11
with 1R291.
Sleeve
Fig. 13
Steel ball 3.5
Flat washer 12
Anvil
Steel ball 3.5
1R232
Hammer case complete
Anvil
Nylon washer 14
Compression
spring 13
Sleeve
Flat washer 12, Compression
spring 13, Sleeve and two
Steel balls 3.5 can be removed
from Anvil.
Anvil and Nylon washer 14 can be removed
from Hammer case complete.
P 6/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-2. Bit holder section and Anvil
ASSEMBLING
Do the reverse of the disassembling steps. Refer to Figs. 13 and 12.
[3]-3 Hammer section
DISASSEMBLING
(1) Disassemble Hammering mechanism from Hammer case complete. See Fig. 2 to 5.
(2) The removed Hammer section are disassembled as illustrated in Fig. 14 to 17.
Fig. 14
Fig. 15
Spindle
Steel ball 5.6
(2pcs.)
Top of
cam groove
on Spindle
Hammer
Opening for
Steel ball
insertion
1R346
1R045
1. Press down Hammer using 1R045 with 1R346
to align the opening for Steel ball insertion
with the top of cam groove on Spindle.
And then remove Steel ball 5.6 from Spindle.
Fig. R
Fig. F
2. Hold Hammer section as illustrated in Fig. R,
and release it from the gear extractor.
Note: Do not hold gear extractor as illustrated in Fig. F when
releasing Hammer section from the Gear extractor.
Failure to follow this instruction could cause Steel balls
to get out of hammer.
Fig. 16
Fig. 17
Spindle section
Flat washer 12
Pin 5
Hammer
Steel ball 3.5 (24pcs.)
Flat washer 24
Cup washer 14
Compression
spring 25
Hammer
Spindle
Spur gear 22
Hammer section can be disassembled as illustrated above.
Steel balls 3.5 can be removed
from Hammer after removal of
Flat washer 24.
P 7/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-3 Hammer section (cont.)
ASSEMBLING
Put twenty-four Steel balls 3.5 into Hammer as illustrated in Fig. 18. And do the reverse of the disassembling steps.
Refer to Figs. 17, 16, 15 and 14.
Fig. 18
Hammer viewed from Spindle insertion side
Steel ball 3.5 (24pcs.)
Space equivalent to one Steel ball
[3]-4 Rotor
DISASSEMBLING
(1) Remove Motor Section from Hammer case complete as illustrated in Figs. 2 and 3.
(2) Pull off Motor section from Hammer case complete as illustrated in Fig. 19.
(3) Separate Rotor from Stator as illustrated in Fig. 20.
Fig. 19
Fig. 20
Hammer case complete
Motor section
Rotor
Stator
Pull off Motor section from
Hammer case complete.
Put the motor section on a work bench so that the drive end
of Rotor touches work bench.
Then separate Stator from Rotor by pressing it down towards
work bench.
Caution for Handling of Rotor
When handling or storing multiple Rotors, be sure to provide the minimum
distances specified in Fig. 21 between Rotors.
Rotor is a strongly magnetic body.
Therefore, failure to follow this instruction could result in:
Finger injury caused by pinching between Rotors pulling each other
Magnetic loss of Rotors
Fig. 21
10.0 mm
15.0 mm
19.9 mm
P 8/ 10
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-4 Rotor (cont.)
ASSEMBLING
Note:
Be careful not to pinch your fingers between Rotor and Stator when removing/installing Rotor.
While engaging Rotor’s gear with Spur gear 22 (2pcs.) in Hammer case section, insert Rotor’s gear through
the hole in Bearing box complete.
(1) Insert Rotor into Stator as illustrated in Fig 22.
(2) Join Motor section to Hammer case complete and engage Armature’s drive end with Spur gear 22.Refer to Fig. 19.
(3) Assemble Motor section together with Hammer case complete to Housing set (L) as illustrated in Fig. 23.
Fig. 22
Fig. 23
Holding Stator set on the Work table,
When the drive end of Rotor reaches
insert Rotor into Stator set slowly until Work table, lift up Stator set towad
Rotor’s drive end reaches worktable.
the fan of Rotor slowly.
Assemble Hammer case complete
so that its stopper portion faces
Switch.
Motor section
Hammer
case
complete
Rotor
Rotor
Stator
Stator set
Switch
stopper portion
[3]-5. Assembling other Inner Parts to Housing Set (L)
Assemble Switch plate complete and F/R Change lever as illustrated in Figs. 24 and 25.
Fig. 25
Fig. 24
Percussion sign is located
on Housing set (L) side
Housing set (L)
Switch plate
complete
Fit the protrusion of Switch to the notch of F/R change lever.
protrusion of Switch
notch
of F/R
change
lever
Housing set (R)
F/R Change
Lever
Switch
Controller
Job light sign is
located on
Housing set (R) side
Note: Be careful to the direction of
Switch plate complete.
3x16 Tapping
screw (9pcs.)
P 9/ 10
Circuit diagram
Fig. D-1
Black
White
Red
Yellow
Color index of lead wires' sheath
Orange
Blue
Gray
LED
Circuit
Terminal of Switch
Stator
Switch
Connector
of LED
Connector of
Controller for
LED
Connector of
Controller for
Switch
Bundling
Tape
Bundling
tape
Controller
Fuse
Stator unit
Terminal
Note: When Stator or Controller is necessary to be replaced, Stator set and Controller set are available.
Cut the lead wires between Stator and Controller, and then connect Stator set/Controller set with
the cutting ends of the lead wires. Refer to Fig. D-2.
Stator unit (enclosed by a dot line) is also available.
P 10/ 10
Wiring
diagram
Fig. D-2
Tightening the Lead wires in this area,
fix them with Lead wire holders.
Lead wire holder
LED circuit
LED circuit
Housing
set (L)
Fit the corner of LED circuit
to that of Housing set (L)
Stator
Stator
Connector of Controller
for connecting to Switch
Put the extra portion of
Controller’s Lead wires for
connecting to Stator in this area.
Switch
Cut the lead wires (blue, white and orange)
at the place surround ribs and screw holes, and then
connect Stator set/Controller set with the cutting ends
of the lead wires when Stator or Controller is necessary
to be replaced. Refer to Fig. D-1.
rib
Do not put any Lead wires
on the ribs of housing set.
Fuse
Connector of
LED circuit
rib
Connector of
Controller
Controller
Terminal
Put the following parts in this area
surround ribs.
* Fuse
* Connectors of Controller and
LED circuit
* All of the Lead wires of Controller