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Makita GA5030 manual

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Table of contents for the manual

  • Page 1

    PR ODUCT P 1 / 1 3 T ECHNICAL INFORMA TION Model No. Description C ONCEPT AND MAIN APPLICA TIONS S pecif ication S tandard equipment Note: The standard equipment for the tool shown abo ve may differ by country . GA4030, GA4530, GA5030 Angle Grinders 100mm (4"), 115mm (4-1/2"), 125mm (5") GA4030/ GA4530/ GA5030 are small diameter Angl[...]

  • Page 2

    P 2 / 1 3 R epair [2] LUBRICA TION [1] NECESSAR Y REP AIRING TOOLS CA UTION: Unplug the tool and remov e the following parts f or safety befor e repair/ maintenance in accordance with the instruction manual! Depressed center wheel, Inner flange, Lock nut, Wheel cover Fig. 1 Apply the follo wing lubricants to the designated portions to protect parts[...]

  • Page 3

    P 3 / 1 3 R epair Note : If dif ficult to remov e Armature due to galling and seizing of Spiral bev el gear 10 in Gear housing: 1. Spray the lubricant between Spiral bev el gear 10 and Armature shaft. 2. Cov er Spiral bevel 10 with a cloth, and hold Spiral bev el gear 10 over the cloth with w ater pump pliers. 3. Remov e Spiral bevel gear 10 by tur[...]

  • Page 4

    P 4 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -1. Armature, Ball bearing 629DD W , Spiral be vel gear 10 (cont.) DISASSEMBLING (5) T ak e out Ball bearing 629DDW as illustrated in Figs. 7 and 8 . Remo ve Ball bearing 607LLB from Armature as illustrated in Fig. 9 . Note : If dif ficult to remov e the Ball bearing 629DDW in the way illustrated in [...]

  • Page 5

    P 5 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -1. Armature, Ball bearing 629DD W , Spiral be vel gear 10 (cont.) ASSEMBLING protrusion Guide plate Gear housing notch Refer to Figs. 11 to 15 . 1R006 Retaining ring R-26 Ball bearing 629DD W Gear housing Assemble Guide plate to Gear housing while fitting the notch of Guide plate to the protrusion o[...]

  • Page 6

    P 6 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Spiral Bev el Gear 37, Ball Bearing 6201DD W DISASSEMBLING M4x14 Pan head scre w (4 pcs.) Remov e Bearing box from Gear housing. Remov e Bearing 696ZZ from Spindle with 1R269. Bearing box Ball bearing 696ZZ Gear housing The parts in Bearing box can be remov ed illustrated in Figs. 16 to 19 . Ther[...]

  • Page 7

    P 7 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -2. Spiral Bev el Gear 37, Ball Bearing 6201DD W (cont.) ASSEMBLING 1R031 1R031 Labyrinth ring Labyrinth ring When setting Labyrinth ring on 1R031, face the flat side upward. Then press fit Spindle to Labyrinth ring. Install Ball bearing 6201DD W and Flat washer 12 to Bearing box. Spindle Correct Wro[...]

  • Page 8

    P 8 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -3. Switch mechanism (Switch lev er and Switch knob) DISASSEMBLING ASSEMBLING (1) Remov e Rear cover from Motor housing by remo ving 4x18 T apping screw . ( Fig . 2 ) (2) Switch lev er and Switch knob can be disassembled from the machine as illustrated in Fig. 26 . 1R 281 Switch knob 1. While locking[...]

  • Page 9

    P 9 / 1 3 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -4 Shaft Lock Mechanism DISASSEMBLING Applying 1R268 to Shoulder pin 4 through the small hole on Pin cap, strike 1R268 with Hammer . Now , Shoulder pin 4 comes out from Gear housing. Release 1R268 from Pin cap carefully so that Pin cap is not slung by Compression spring 8. Shoulder Pin 4 O ring 5 Pin[...]

  • Page 10

    P 1 0 / 13 R epair [3] DISASSEMBL Y/ASSEMBL Y [3] -5 Field DISASSEMBLING (1) After removing Rear cover , disconnect Carbon brush from Armature’ s commutator as illustrated in Fig. 2 . (2) Disassemble Bearing box section from Gear housing as illustrated in Fig. 3 . (3) Separate Gear housing together with Armature from Motor housing as illustrated [...]

  • Page 11

    P 1 1 / 13 C ircuit diagram W iring diagram Red White Blue Brown Switch Field Brush holder Wiring to Switch Brush holder Noise suppressor Power supply cord White lead wire is used for some countries. Black lead wire is used for some countries Color index of lead wires' sheath Black Fig. D-1 Fig. D-2 Mark on Switch body Connect the Lead wire of[...]

  • Page 12

    P 1 2 / 13 Wiring of Field lead wir es W iring diagram Insert Field into Motor housing so that the Field lead wires (red) face the opposite side of Switch knob as illustrated belo w . Switch knob side Switch knob Switch lev er Pull out Field lead wires (red) from rear opening of the opposite side of Switch lev er . Field lead wire (red) Field lead [...]

  • Page 13

    W iring diagram P 1 3 / 13 Switch Rib Field lead wire (black) Field Lead Wire (black) has to be tight in Motor housing. Switch le ver * Noise suppressor * Noise suppressor is not used for some countries. Switch lev er Switch knob Rear portion of Motor Housing (viewesd from Switch le ver side) Wiring f or Pigtail of Carbon brush Fig. D-5 Fig. D-6 Pi[...]