Makita GA4042C Technical Information
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Makita GA4042C Technical Information

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T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
1,400W Angle grinder series models; GA4040C/ GA4042C,
GA4540C/ GA4542C, GA5040C/ GA5042C and GA6040C/
GA6042C are successor models of 9560 series models, featuring:
"
•
Super Joint System II
absorption
• Electronic current limiter, speed control and soft start
• Anti-restart function*
• Re-designed durable gear housing
• Ergonomically best possible barrel grip
*
Anti-restart function is available for the following models only:
1
GA4040C, GA4540C, GA5040C, GA6040C
S
pecification
Voltage (V)
Current (A)
110
120
127
220
230
240
Model No.
Diameter
Wheel size:
Hole diameter
mm (")
Max. thickness
No load speed: min.
Shock absorbing System
Constant speed control
Soft start
Electronic current limiter
Anti-restart function
Variable speed control by dial
Mechanical brake
Protection against electric shock
Power supply cord: m (ft)
Weight according to
EPTA-Procedure 01/2003*
*2 with Side grip, Wheel cover, Inner flange, Lock nut
S
tandard equipment
Side grip ............................................... 1 (normal type or anti-vibration type)
Lock nut wrench ................................... 1
Depressed center wheel ........................ 1 (100mm for GA4040C/ GA4042C, 115mm for GA4540C/ GA4542C,
Note: The standard equipment for the tool shown above may vary by country.
O
ptional accessories
Depressed center wheels
Rubber pads
Dust collecting wheel guards
Abrasive discs
GA4040C/GA4042C, GA4540C/GA4542C,
GA5040C/GA5042C, GA6040C/ GA6042C
Angle Grinders 100mm (4"), 115mm (4-1/2"),
125mm (5"), 150mm (6")
"
developed for effective vibration
1
Cycle (Hz)
13
50/60
12
50/60
12
50/60
6.7
50/60
6.4
50/60
6.1
50/60
GA4040C/ GA4042C
100 (4)
16 (5/8)
¹=rpm
ˉ
GA4040C, GA4540C, GA5040C, GA6040C: Yes/ GA4042C, GA4542C, GA5042C, GA6042C: No
European countries except UK: 4.0 (13.2), Brazil, Australia: 2.0 (6.6)
2.3 (5.2)
: kg (")
2
125mm for GA5040C/ GA5042C, 150mm for GA6040C/ GA6042C)
Wire brushes
Wheel covers for wire brushes
Diamond wheels
Abrasive cut off wheels
GA4040C/GA4042C, GA4540C/GA4542C,
Model No.
GA5040C/GA5042C, GA6040C/ GA6042C
Length (L)
Width (W)
Height (H)
Continuous Rating (W)
Input
1,400
---
1,400
1,400
1,400
1,400
GA4540C/ GA4542C
GA5040C/ GA5042C
115 (4-1/2)
6 (1/4)
2,800 - 11,000
Super Joint System II
Yes
Yes
Yes
Yes
No
Double insulation
Other countries including UK: 2.5 (8.2)
2.5 (5.4)
Wheel covers
Sanding lock nut
etc.
PRODUCT
L
H
W
Dimensions: mm (")
303 (11-7/8)
117 (4-5/8), 130 (5-1/8),
140 (5-1/2), 171 (6-3/4)
111 (4-3/8), 116 (4-9/16),
116 (4-9/16), 116 (4-9/16)
Max. Output (W)
Output
840
1,800
840
2,000
840
2,000
840
2,100
840
2,100
840
2,100
GA6040C/ GA6042C
125 (5)
150 (6)
22.23 (7/8)
4,000 - 9,000
2.6 (5.6)
P 1/ 12

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Summary of Contents for Makita GA4042C

  • Page 1 Side grip ..........1 (normal type or anti-vibration type) Lock nut wrench ........1 Depressed center wheel ......1 (100mm for GA4040C/ GA4042C, 115mm for GA4540C/ GA4542C, 125mm for GA5040C/ GA5042C, 150mm for GA6040C/ GA6042C) Note: The standard equipment for the tool shown above may vary by country.

  • Page 2: Necessary Repairing Tools

    1R350 Ring 60 supporting Gear housing when disassembling Shaft lock mechanism [2] LUBRICATION Apply Makita grease to the following portions designated with the black triangle and gray triangle to protect parts and product from unusual abrasion. Description Portion to lubricate...
  • Page 3 P 3/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature, Spiral bevel gear [small one] DISASSEMBLING (1) Remove Spiral bevel gear (small) from the drive end of Armature as drawn in Fig. 2. Fig. 2 1. Remove Rear cover by unscrewing 2.
  • Page 4 P 4/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature, Spiral bevel gear [small one] (cont.) DISASSEMBLING (2) Disassemble the commutator end of Armature as drawn in Fig. 3. Note: This step is required for the models with electronic control system of GA4040C, GA4540C, GA5040C, GA6040C, GA4542C, GA5042C, GA6042C.
  • Page 5 P 5/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Armature, Spiral bevel gear [small one] (cont.) ASSEMBLING (3) Assemble Gear housing cover with Armature and Gear housing to Motor housing as drawn in Fig. 5. Fig. 5 1. Assemble Gear housing cover together with Armature 2.
  • Page 6 P 6/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Spiral bevel gear [large one], Ball bearings 696ZZ/ 6201DDW (cont.) DISASSEMBLING (2) Disassemble large Spiral bevel gear from Spindle and Separate Coupling from the gear as drawn in Fig. 7. Fig. 7 1.
  • Page 7 P 7/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Spiral bevel gear [large one], Ball bearings 696ZZ/ 6201DDW (cont.) DISASSEMBLING (3) Disassemble Ball bearing 6201DDW from Bearing box as drawn in Fig. 8. Fig. 8 1. Clamp Bearing box with Vise. Then, while fitting the claw of 1R340 to the notch of Bearing retainer 20-33, turn 1R340 clockwise to remove the retainer.
  • Page 8 P 8/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -4. Switch Lever DISASSEMBLING (1) Remove Rear cover from Motor housing by removing 4x18 Tapping screw. (Fig. 2) (2) Disassemble Switch lever and Switch knob from the machine as drawn in Fig. 9. Fig.
  • Page 9 P 9/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -5. Switch Block DISASSEMBLING After removing Switch Lever (Refer to Fig. 9), separate Switch block from Motor housing as drawn in Fig. 11. Fig. 11 Insert Slotted screwdriver into the gap between Switch block Switch block and Motor housing, remove Switch block from Motor housing.

  • Page 10: Shaft Lock

    P 10/ 12 epair [3] DISASSEMBLY/ASSEMBLY [3] -8. Shaft Lock DISASSEMBLING (1) Disassemble Bearing box section from Gear housing. (Refer to Fig. 6) (2) Disassemble Shaft lock mechanism as drawn in Figs. 14 and 15. Fig. 14 Fig. 15 While applying 1R268 to Shoulder pin 6 through the small hole Release 1R268 from Pin cap carefully on Pin cap, tap 1R268 with a hammer.

  • Page 11: Circuit Diagram

    P 11/ 12 ircuit diagram GA4040C, GA4540C, GA4542C, GA5040C, GA5042C, GA6040C, GA6042C Fig. D-1A with Controller Color index of lead wires' sheath Blue Brown Black lead wire is used Switch for some countries. Switch block White lead wire is used for some countries.

  • Page 12: Wiring Diagram

    P 12/ 12 iring diagram Fig. D-2 Wiring of Lead wires of Power supply cord Put Lead wires of Power supply cord into this place designated with gray color. Fig. D-3 Connecting of Switch block to Motor housing 1. Before mounting Switch block to Motor housing, 2.

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