Makita BTP131 Manual

Dimensions: mm (")
Width (W)
Height (H1)*2
Height (H2)*3
*2: with BL1415
*3: with BL1430
Length (L) 171 (6-3/4)
79 (3-1/8)
250 (9-7/8)
233 (9-1/8)
BTP131
Cordless 4 Mode Impact Driver
Model BTP131 Cordless 4 mode Impact Driver is an advanced version
of model BTP130. While maintaining the same high versatility as Model BTP130,
BTP131 additionally features more compact design achieved by using BLDC motor
(BrushLess DC motor) and Makita’s first electronic clutch mechanism.
This product is powered by 14.4V-1.3Ah Li-ion battery BL1415 and 14.4V-3.0Ah
Li-ion battery BL1430.
This product is available in the following variations.
H
W
Battery
Clutch torque setting on screwdriver mode
Charging time: min.
Max. fastening torque:
N.m (in.lbs)
Capacity: Ah
Cell
Voltage: V 14.4
Drill mode
Soft joint
Impact driver mode*5
12 (106)
1.3, 3.0
Li-ion
15, 22 with DC18RC
Hard joint 21 (186)
Lock torque 15 (133)
145 (1,280)
No load speed:
min.ˉ¹=rpm
Impact driver mode 0 - 2,800/ 0 - 2,200/ 0 - 1,400
0 - 3,200/ 0 - 2,400/ 0 - 1,200
Screwdriver mode
Drill mode
Hammer drill mode 0 - 2,800/ 0 - 700
0 - 1,100/ 0 - 300
(0 - 2,300/ 0 - 600)*4
Impacts per minute:
min.ˉ¹=ipm
Impact driver mode
Hammer drill mode 0 - 32,400/ 0 - 8,400
18 (9 each for high/low speeds)
+ Teks screw mode
Driving shank 6.35mm (1/4") Hex
Weight according to
EPTA-Procedure 01/2003: kg (lbs)
Torque range (approx.): N.m (in.lbs) 0.7 - 4.0 (6 - 35)/ 1.5 - 12.0 (13 - 106)
1.5*2 (3.3)*2, 1.7*3 (3.7)*3
Drilling:
mm (") Steel
Masonry
Wood 21 (13/16)
M4 - M8 (5/32" - 5/16")
10 (3/8)
8 (5/16)
Yes
Energy capacity: Wh 19, 44
Drill mode
Fastening
Machine screw
M5 - M14 (3/16" - 9/16")Standard bolt
M5 - M12 (3/16" - 15/32")High tensile bolt
22mm - 125mm (7/8" - 4-7/8")Coarse-thread
Impact driver mode
LED Job light
*4: Teks screw mode
*5: Torque at 3 seconds after seating, when fastening M14 high tensile bolt
Hammer drill mode
Capacity
PRODUCT
P 1/ 18
All models also include the accessories listed below in "Standard equipment".
Model No. Type Quantity Charger
Plastic
carrying
case
Battery
cover
No
Battery
BTP131Z No No
BTP131RFE DC18RC Yes2
BL1430 1
Battery
fuel gauge
Yes
Yes
NoNo
TECHNICAL INFORMATION
Models No.
Description
CONCEPT AND MAIN APPLICATIONS
Specification
L
Hard/ Medium/ Soft
High/ Low
High/ Low
Hard/ Medium/ Soft
High/ Low
High/ Low

Note: The standard equipment for the tool shown in page 1 may vary by country.
Belt clip ................................... 1
Drill bits for wood with 6.35mm Hex shank
Drill bits for steel with 6.35mm Hex shank
Drill bits for masonry with 6.35mm Hex shank
Phillips bits
Socket bits
Fast charger DC18RA (for U.S., Canada, Guam, Panama, Mexico and Columbia)
Fast charger DC18RC (for all countries except U.S., Canada, Guam, Panama, Mexico and Columbia)
Charger DC18SD
Charger DC24SC
Automotive charger DC18SE
Li-ion battery BL1415
Li-ion battery BL1430
P 2/ 18
Standard equipment
Optional accessories

P 3/ 18
Repair
Apply Makita grease N. No.2 to the following portions designated with 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
1R003 Retaining ring pliers ST-2N Disassembling / Assembling retaining ring WR-15
1R045 Gear extractor Disassembling / Assembling Hammer
1R212 Tip for retaining ring pliers Attachment for 1R003
1R223 Torque wrench shaft 20-90 N.m Disassembling / Assembling Hammer case
1R224 Ratchet head 12.7 Attachment for 1R223
1R282 Round bar for 8-50 Disassembling / Assembling Hammer
1R288 Screwdriver magnetizer Removing Steel ball 5.6
1R291 Retaining ring S and R pliers Mounting Retaining ring WR-15
1R351 Anvil holding Jig Disassembling / Assembling Anvil
1R390 Cam A assembling jig Assembling Cam A
1R391 Hammer holding jig Disassembling / Assembling Hammer
Socket 32-50134848-9 Disassembling / Assembling Hammer case
[2]-1 LUBRICATION
Fig. 1
Item No. Description Grease
2 g
a little
a little
AmountPortion to lubricate
28
Between Cam A and Cam B
Surface where Hammer contacts
Whole portion
Whole portion
Whole portion
Whole portion
Anvil Section
28, 29
Cup washer
29 (Cam B)
33
37 38
37
38
37
38
Change case
32
32
30
30
33
32
41
41
42
44
41
42
44
Cam A, Cam B
Pin guide Drum portion
Whole portion
Pin 1.2 - 3.5
Pin 2.5
Steel ball 3
Hammer change ring Inside of the Ring
Hammer change plate Tab portion
Steel ball 3.5
Anvil
Steel ball 5.6
Gear case assembly
Hammer
45
45
Makita
grease N.
No.2

P 4/18
Repair
Apply Makita grease N. No.2 to the following portions designated with the black triangle to protect
parts and product from unusual abrasion.
[2]-2 LUBRICATION
[3]-1 Impact Assembly, Anvil
(1) Disassemble Bit holder section and Bumper for attaching 1R224 (Fig. 2, 3).
1. Remove Ring spring 11. 2. Remove Flat washer 12,
Compression spring 13.
3. Remove Sleeve and
Steel ball 3.5 (2pcs.)
4. Remove Bumper.
Fig. 2
DISASSEMBLING
Bumper
Steel ball 3.5
Sleeve
Sleeve
Flat washer 12
Compression
spring 13
a little
62
58
57
58
57 Spur gear 41
Spur gear 14B
Teeth portion
Teeth portion
54
53
51
54
53 a
a: Spindle portion
b
b: Pins for Gears 57, 58
Pins for Gears 63
63
62 Spur gear 14A complete
63 Spur gear 21 Teeth portion
60
60 Change lever The sliding area in Motor bracket
Pin 1.2
Pin 1.2
Motor bracket assembly
Compression
spring 22
Outer hammer
Flat washer 14
49
61
61 Internal gear 41 Groove portion where 4 pcs. of Pin 1.2 fit
Item No. Description Grease AmountPortion to lubricate
49 Steel ball 3 (6 pcs.) whole portion
51 Steel ball 3 (34 pcs.) whole portion
53 Steel ball 3 (34 pcs.) whole portion
Spindle complete
Fig. 1A Impact Section
Makita
grease N.
No.2

P 5/18
Repair
[3]-1 Impact Assembly, Anvil
(2) Remove Hammer case assembly and Change ring from Impact assembly (Fig. 3).
(3) Remove Impact assembly (Fig. 4).
DISASSEMBLING
Fig. 4
Housing R
Switch unit
Speed change lever assembly
1. Separate Housing R from Housing L.
3. Separate Impact assembly from Motor section.
2. Remove Impact assembly together with
Motor section. And separate Speed change
lever assembly and a pair of Switch unit.
Motor section
Housing L
Motor section
Impact assembly
1. Attach 1R224 to 1R223. And set Socket 32-50 to 1R224.
Remove Hammer case assembly by turning 1R223
counterclockwise.
2. Remove Change ring and
Leaf spring.
Fig. 3
Change ring
Leaf spring
Hammer case
assembly
1R224
1R223
Socket 32-50

P 6/ 18
Repair
[3]-1 Impact Assembly, Anvil
(4) Disassemble Impact assembly (Fig. 5).
DISASSEMBLING
1. Shift the stick of Speed change lever
assembly toward Motor bracket side.
2. Turn Motor bracket assembly
counterclockwise and pull it off.
Fig. 5
(5) Disassemble Hammer change plate, Hammer change ring, Compression spring 2 (2 pcs), Sleeve 24 and
Change case from Gear case assembly (Fig. 6).
3. Disassemble Impact assembly and Anvil section as below.
Hammer
change ring
Hammer
change plate
Hammer
change plate
Hammer
change plate
Motor bracket assembly
Motor bracket assembly
Hammer section
Steel ball 3
(6 pcs.)
Steel ball 5.6
Spur gear 41
Spur gear 14B
(5 pcs.) Spur gear 21 (3 pcs.)
Gear case
assembly
Anvil
Compression
spring 5
1. Remove Pin guide and Pin 1.2-3.5
from the both side of Gear case
assembly. And remove Change
sleeve.
2. Pull up Hammer change plate
while pressing down
Hammer change down.
Internal gear 41
Spur gear 14A
Pin 1.2 (4 pcs)
Pin guide
Sleeve 24
Change case Gear case assembly
Hammer change ring
Compression
spring 2
Pin 1.2-3.5
Pin guide
Pin 1.2-3.5
Change sleeve
Hammer
change ring
3. Pull out Hammer change plate
downward direction indicated
by black arrows below.
4. Remove Hammer change ring, Compression
spring 2 (2 pcs) and Sleeve 24.
And then, remove Change case form Gear
case assembly.
Fig. 6

P 7/18
Repair
[3]-1 Impact Assembly, Anvil
(6) Remove Retaining ring WR-15 (Fig. 7-1).
Follow the steps 2. and 3. below for removing Retaining ring WR-15 when it can not be removed with Pliers
because of deviation to Bit holder side from the position where it should be.
(7) Disassemble Anvil (Fig. 8).
1. Remove Retaining ring WR-15
with 1R003 and 1R212.
Fig. 7
DISASSEMBLING
Retaining ring
WR-15
1R351
1R351
Shallow notch
1R351
1R390
Anvil
3. Press the 1R390 with Arbor press.
So, Cam A returns to the place
where it should be.
Now, Retaining ring WR-15 can be
removed with Pliers.
Anvil wings
2. Put Anvil wings onto Shallow
notches of 1R351 and set 1R390
to Retaining ring WR-15.
2. Press down Anvil with
Arbor press.
Retaining ring
WR-15
Cam A
Deep notch
1R351 1R351
1R351
Cam A
Anvil
Anvil wings
Nylon washer 15
4. Remove Nylon washer 15 and O ring 12.5 from Anvil. 5. Remove Cam B, 22 pcs of Steel ball 3
and Cup washer from Gear case assembly
by pushing them toward Bit holder side.
O ring 12.5 Steel ball 3 (22 pcs.)
Cam B
Cup washer
O ring 12.5
Fig. 8
3. Anvil drops in Deep notches of 1R351.
So, Anvil and Cam A are removed
from Gear case assembly.
1. Set Gear case assembly to 1R351
by inserting Anvil wings in
Deep notches of 1R351.

P 8/ 18
Repair
[3]-1 Impact Assembly, Anvil
(2) Assemble Cam A (Fig. 10).
ASSEMBLING
Note: The Space equivalent to one steel ball remains
on Cup washer when 22 pcs. of Steel ball 3 are
correctly set on it.
(1) Put 22 pcs of Steel ball 3 to Cup washer (Fig. 9).
And then, assemble the Cup washer and Cam B to Gear case assembly (Fig. 8-5).
Fig. 10
Fig. 9
Space equivalent
to one Steel ball
1R351
1R351
1R351
Cam A
2. Set Cam A to Cam B facing
its cam gear side to Cam B.
Cam B
Anvil
1. Assemble O ring 12.5 and Nylon washer 15 to Anvil.
Put Anvil on 1R351 while fitting its wings to
Shallow notch of 1R351.
And set Gear case assembly to the Anvil.
O ring 12.5
3. Set 1R390 on the Cam A and press it
with Arbor press until Cam A stops.
4. While expanding Retaining ring WR-15 with 1R291,
set the Retaining ring to tips of 1R003 with 1R212.
And mount the expanded Retaining ring WR-15
to the groove on Anvil.
Nylon
washer 15
Cam A
Cam A
Cam B
Steel ball 3
Cup washer
1R390
1R390
Anvil
Arbor press
Groove for
Retaining ring WR-15
Retaining Ring WR-15
1R291
1R003 attached
with 1R212
Note: Cam A must be mounted until the groove for Retaining ring
WR-15 on Anvil is reserved. Press 1R390 until the top surface
of Anvil comes to the same level of the top surface of 1R390.

P 9/ 18
Repair
[3]-1 Impact Assembly, Anvil
Pin guide
with Pin 1.2-3.5
Pin guide with Pin 1.2-3.5
ASSEMBLING
(3) Assemble Change case, Change sleeve, Pin guides with Pin 1.2-3.5, Compression spring 2 and Hammer change ring
to Gear case assembly (Fig. 11, Fig. 12).
Fig. 12
Fig. 11
Notch for Speed change
lever
Tail of Change case
1. Assemble Change case while locating its Tail
to the opposite side of Notch for Speed change
lever.
2. Insert Change sleeve into Gear case assembly while facing
the groove of Change sleeve to motor side.
Note:
Make sure to assemble Change sleeve in the correct
direction (the groove is faced to motor side) so as to fit
Pin 1.2-3.5 to the groove of Change sleeve in the next step.
Change case
Elliptical hole
1. Align the elliptical hole of Change case to that of
Gear case assembly by turning Change case.
The groove of Change sleeve is seen through the elliptical holes
of Change case and Gear case assembly.
Elliptical hole
Groove of
Change sleeve
Change sleeve
Change sleeve
Groove of Change sleeve
Change case
3. Mount 2 pcs. of Compression spring 2 to
Gear case assembly and assemble Hammer
change ring to Gear case assembly by fitting
its two holes to the Compression springs.
Gear case
assembly Groove of
Change sleeve
2. Apply grease to the elliptical holes of
Change case so that the Pin guide sticks
on the elliptical holes of Change case.
Mount Pin guide with Pin 1.2-3.5 to
the groove of Change sleeve.
Hammer change ring
Compression
spring 2
(4) Assemble Hammer change plates while pressing Hammer change ring with your fingers at its two points.
Refer to Fig. 6.
Wrong

P 10/ 18
Repair
[3]-1 Impact Assembly, Anvil
ASSEMBLING
(5) Assemble Hammer section to Gear case assembly and assemble Spur gear 41 and Spur gear 14B (Fig. 13).
Fig. 13
1. Assemble Change ring to Gear case
assembly while fitting projection on
Change case to the notch of Change ring.
2. Assemble Leaf spring and
Sleeve 24 to Gear case ass' y.
4. Put Compression spring 5
and Steel ball 5.6 into the
center hole of Anvil in the
Hammer case assembly.
5. Put 6 pcs. of Steel ball 3 to
the holes on Outer hammer
by sticking them with Grease.
3. Provisionally, assemble
Hammer case assembly to
Gear case assembly by
turning it clockwise.
Sleeve 24
Leaf spring
Steel ball 5.6
Hammer case
assembly
Change ring
Compression
spring 5
Steel ball 3 (6 pcs)
Wide concave with a notch
Gear case
assembly
Hammer
section
7. Assemble Spur gear 41 while facing
the depression to Motor side.
8. Assemble five Spur gear 14B.
Wide depression
6. Insert Hammer section into Gear case assembly while aligning Wide depression of Bearing case
to Wide depression on Gear case assembly and fitting three projections on Hammer section to
three projections on Gear case assembly.
Depression Projections
Spur gear 41
Wrong assembling
Depression
Spur gear 14B
Wrong