Instruction/ maintenance manual of the product BTW074 Makita
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P 1/ 15 C ONCEPT AND MAIN APPLICATIONS PRODUCT Models No. Description BTW074, BTW104 Cordless Impact Wrench ( The image above is Model BTW074.) W H L Dimensions: mm (") Width (W) Height (H) Length (L) 74 (2-15/16) 144 (5-5/8) * 1 216 (8-1/2) * 1 / 234 (9-1/4) * 2 * 1 149mm (5-7/8”) for Anti-wobble anvil version * 2 with 1.
Code No. Description Use for 1R004 Retaining Ring S Pliers disassembling / assembling Ring spring 7 1R045 Gear extractor disassembling / assembling Hammer section 1R222 1R288 Socket Adapter Screwdriver magnetizer removing Steel ball 5.
P 3/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -1. Note for Assembly/Disassembly The models can be distinguished depending on the max. fastening torque. See Fig. 2 . When repairing the products, be sure to assemble Hammer , Compression spring and Switch plate complete or Cover complete as shown in Fig.
P 4/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (1) Remove Armature section from Housing set as drawn in Fig. 3 , and remove Brush holder from Armature in Fig.
P 5/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (cont.) (1) Insert Armature into Y oke unit so as not to damage the wiring of Armature and not to be pinched your fingers between yoke unit and Armature fan. And insert the drive end of Armature into Internal gear case as drawn in Fig.
P 6/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Armature (cont.) (3) Assemble Motor section (Armature, Y oke unit ), Internal gear case and Brush holder to Housing set (L) as drawn in Fig. 8 . Fig. 8 Fig. 9 Fig. 10 ASSEMBLING Rib 90° Y oke unit Mark Housing Set (L) (5) Assemble F/R change lever as drawn in Fig.
P 7/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -3. Ball bearing 6801LLB in Internal gear case Fig. 1 1 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.
P 8/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y Fig. 12 DISASSEMBLING [3] -4. Bit holder section, Anvil (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.
P 9/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -5. Hammer section Fig. 15 Fig. 16 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.
P 10/ 15 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -5. Hammer section (cont.) Fig. 17 Fig. 18 DISASSEMBLING ASSEMBLING Hammer and Steel balls 3.5, viewed from above (4) Disassemble Hammer section as drawn in Fig. 17 . Assemble Hammer section by reversing the disassembly procedure.
P 1 1/ 15 C ircuit diagram Fig. D-1 W iring diagram Y ellow Brush holder complete Brush holder Line filter* *Line filter is not used for some countries. Switch LED Circuit LED Connector T erminal Connector Color index of lead wires' sheath Black Red Fig.
P 12/ 15 W iring diagram Fig. D-3 Wiring of LED Lead Wir e (before setting Switch) Wiring in Housing set (L) (after setting Switch) LED Rib A Rib B Rib D Lead wire holder A Connectors in Connector box B Connectors can be also routed through Connector box B.
P 13/ 15 C ircuit diagram Fig. D-4 W iring diagram Fig. D-5 BTW074, BTW104 (equipped with Automatic Impact Stop System) Y ellow Brush holder complete Brush holder Line filter* *Line filter is not used for some countries.
P 14/ 15 Fig. D-6 W iring diagram Wiring of LED Lead Wir e (before setting Switch) BTW074, BTW104 (equipped with Automatic Impact Stop System) Rib F LED Boss Rib A Rib B Rib D Rib C Connector box Wiri.
P 15/ 15 W iring diagram Fig. D-7 BTW074, BTW104 (equipped with Automatic Impact Stop System) Line filter Route Line filter between Ribs E and F . Wiring in Housing set (L) (after setting Switch) Rib F LED light Switch Rib E Route Lead wires for connecting to Switch between Boss and the inner wall of Housing set (L).
An important point after buying a device Makita BTW074 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Makita BTW074 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Makita BTW074 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Makita BTW074 you will learn all the available features of the product, as well as information on its operation. The information that you get Makita BTW074 will certainly help you make a decision on the purchase.
If you already are a holder of Makita BTW074, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Makita BTW074.
However, one of the most important roles played by the user manual is to help in solving problems with Makita BTW074. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Makita BTW074 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
