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Makita BTW074 Technical Information
Makita BTW074 Technical Information

Makita BTW074 Technical Information

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T
ECHNICAL INFORMATION
Models No.
Description
C
ONCEPT AND MAIN APPLICATIONS
These cordless impact wrenches for manufacturing industry as
the successors of BTW072 series models.
Their main features are:
• Extra compact design with a short overall length of 144mm (5-5/8")*
• Powered by our new 14.4V Li-ion batteries with battery fuel gauge:
BL1415NA (1.5Ah)/ BL1415NP (1.5Ah)/
BL1430A (3.0Ah)/ BL1430AP (3.0Ah)
• Automatic impact stop system to avoid under-tightening and
over-tightening
• Torque stabilization system to stabilize the torque of each fastening
• Automatic battery shut-off system to avoid incomplete fastenings
S
pecification
Model No.
Cell
Voltage: V
Battery
Capacity: Ah
Energy capacity: Wh
Charging time (approx.): min.
Max output (W)
Driving shank
Standard bolt
Capacities
High tensile bolt
Impacts per min.: min.
No load speed: min.
Max. fastening torque: N.m [kgf·cm] (in.lbs)
Battery fuel gauge*
6
Automatic battery shut-off system
Electric brake
LED job light
Variable speed control by trigger
Reverse switch
Weight according to
EPTA-Procedure 01/2003*
*4 The fastening torque at 3 seconds after seating, when fastening M10 (grade 10.9) high tensile bolt.
*5 The fastening torque at 3 seconds after seating, when fastening M12 (grade 10.9) high tensile bolt.
*6 located on battery BL1415NA/ BL1415NAP/ BL1430A/ BL1430AP, not on the tool body
*7 with battery
S
tandard equipment
No
O
ptional accessories
Li-ion Battery BL1415NA
Li-ion Battery BL1415NAP
Li-ion Battery BL1430A
Li-ion Battery BL1430AP
Battery protector
Charger DC18SD
BTW074, BTW104
Cordless Impact Wrench
¹=ipm
ˉ
¹=rpm
ˉ
: kg (lbs)
7
Charger DC24SC
Automotive charger DC18SE
Fast charger DC18RA (for USA, Canada, Guam, Panama, Mexico, Colombia)
Fast charger DC18RC (for all countries except the countries above)
Protectors (blue/ white/ red)
Automatic refreshing adapter ADP03
1
*
*
*
BTW074
Li-ion
14.4
1.5/ 3.0
22/ 44
15/ 22 with DC18RC
140
9.5mm (3/8") Square drive
M5 - M12 (3/16 - 1/2")
M5 - M10 (3/16 - 3/8")
0 - 3,500
0 - 2,500
65 [660] (575)*
95 [970] (841)*
4
Yes
Yes
Yes
Yes
Yes
Yes
1.1/ 1.3
(2.4/ 2.9)
L
W
(
The image above is Model BTW074.)
Dimensions: mm (")
Length (L)
144 (5-5/8)*
Width (W)
74 (2-15/16)
Height (H)
216 (8-1/2)
*
149mm (5-7/8") for Anti-deflection anvil version
1
with 1.5Ah Li-ion battery BL1415NA
2
with 3.0Ah Li-ion battery of BL1430A
3
BTW104
150
0 - 2,700
5
PRODUCT
P 1/ 15
H
1
/ 234 (9-1/4)
*
1
2

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Summary of Contents for Makita BTW074

  • Page 1 • Extra compact design with a short overall length of 144mm (5-5/8")* • Powered by our new 14.4V Li-ion batteries with battery fuel gauge: BL1415NA (1.5Ah)/ BL1415NP (1.5Ah)/ The image above is Model BTW074.) BL1430A (3.0Ah)/ BL1430AP (3.0Ah) Dimensions: mm (") •...
  • Page 2: Necessary Repairing Tools

    Ring spring 7 1R288 Screwdriver magnetizer removing Steel ball 5.6 from Spindle [2] LUBRICATION Apply Makita grease FA No.2 to the following portions designated with the black triangle to protect parts and product from unusual abrasion. Item No. Description Portion to lubricate...
  • Page 3 The models can be distinguished depending on the max. fastening torque. See Fig. 2. Fig. 2 Max. fastening torque Model No. Distinctive Parts ø39 Hammer B Compression spring (orange) BTW073 65 N.m BTW074 ID plate BTD063: Cover complete (white) (white) BTD064: Switch plate complete (white) Hammer C Compression spring (green) BTW103 95 N.m...
  • Page 4 P 4/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature DISASSEMBLING (1) Remove Armature section from Housing set as drawn in Fig. 3, and remove Brush holder from Armature in Fig. 4. Fig. 3 1. Loosen four M4x22 Pan head screws and separate 2.
  • Page 5 P 5/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature (cont.) DISASSEMBLING (2) Remove Armature as drawn in Fig. 5. Fig. 5 1. Remove Internal gear case 2. Remove Armature Armature from Motor section. from Yoke unit. Internal gear case Yoke unit Motor section ASSEMBLING (1) Insert Armature into Yoke unit so as not to damage the wiring of Armature and not to be pinched your fingers...
  • Page 6 P 6/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature (cont.) ASSEMBLING (3) Assemble Motor section (Armature, Yoke unit ), Internal gear case and Brush holder to Housing set (L) as drawn in Fig. 8. Fig. 8 Yoke unit Housing Set (L) Mark 90°...
  • Page 7 P 7/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Ball bearing 6801LLB in Internal gear case DISASSEMBLING (1) Disassemble Brush holder and Motor section together with Internal gear case as drawn in Fig. 3. (2) Remove Internal gear case from Armature as drawn on the left in Fig. 5. (3) Remove Ball bearing 6801LLB from Internal gear case as drawn in Fig.
  • Page 8 P 8/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Bit holder section, Anvil DISASSEMBLING (1) Loosen four M4x22 Pan head screws and separate Hammer case complete from Housing set. See the drawing on the upper left in Fig. 3. (2) Remove Ring spring 7 as drawn in Fig. 12. And then, remove Anvil as drawn in Fig. 13. *For Anvil without Ring spring 7, Anvil can be removed as drawn in Fig.
  • Page 9 P 9/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -5. Hammer section DISASSEMBLING (1) Loosen four M4x22 Pan head screws and separate Hammer case complete from Housing set. See the drawing on the upper left in Fig. 3. (2) Remove Hammer section from Housing set. See Fig. 15. Fig.
  • Page 10 P 10/ 15 epair [3] DISASSEMBLY/ASSEMBLY [3] -5. Hammer section (cont.) DISASSEMBLING (4) Disassemble Hammer section as drawn in Fig. 17. Fig. 17 Compression spring 26 Cup washer 14 Hammer Steel ball 3.5 (24 pcs.) Flat washer 24 Spindle ASSEMBLING Assemble Hammer section by reversing the disassembly procedure.
  • Page 11: Circuit Diagram

    P 11/ 15 ircuit diagram BTW073, BTW103 Fig. D-1 (without Automatic Impact Stop System) Color index of lead wires' sheath Yellow Black Brush holder LED Circuit Line filter* Brush holder complete Switch Connector Connector Terminal *Line filter is not used for some countries. iring diagram BTW073, BTW103 (without Automatic Impact Stop System)
  • Page 12 P 12/ 15 iring diagram BTW073, BTW103 (without Automatic Impact Stop System) Fig. D-3 Wiring of LED Lead Wires (before setting Switch) Route Lead wires (black, red) between Rib A and the inner wall of Housing set (L). Route lead wires (black, red) between Rib A and Rib B so that they are not pinched with Switch.
  • Page 13 P 13/ 15 ircuit diagram BTW074, BTW104 (equipped with Automatic Impact Stop System) Fig. D-4 Color index of lead wires' sheath Orange Black Gray White Green Blue Yellow LED Light LED Circuit Circuit Impact finish Brush holder indicator lamp Line filter*...
  • Page 14 P 14/ 15 iring diagram BTW074, BTW104 (equipped with Automatic Impact Stop System) Fig. D-6 Wiring of Lead wires for LED (before setting Switch) Route Lead wires (black, red) between Rib F Rib A and the inner wall of Housing set (L).
  • Page 15 P 15/ 15 iring diagram BTW074, BTW104 (equipped with Automatic Impact Stop System) Fig. D-7 Wiring in Housing set (L) (after setting Switch) Be careful not to route any Lead wires on this Rib. Rib E Line filter Rib F...

This manual is also suitable for:

Btw104