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Makita GA7050R Instructions Manual

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T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
Models GA7050R and GA9050R are developed as upgraded sister tools
of GA7050 and GA9050.
Additionally to the benefits of GA7050 series models, Models GA7050R
and GA9050R are equipped with Anti-restart function and Soft start feature.
Wheel size is:
180mm (7'') for Model GA7050R
230mm (9'') for Model GA9050R
S
pecification
Voltage (V)
110
120
220
230
240
Specification
Wheel size: mm (")
No load speed: min-
Soft start feature
Anti-restart function
Double insulation
Power supply cord: m (ft)
Net weight
: kg (lbs)
*3
*1 for Brazil, Australia
*2 for all countries except the two listed above
*3 Weight according to EPTA-Procedure 01/2003, with Side grip, Wheel cover, Inner flange, Lock nut
S
tandard equipment
Lock nut wrench 35 ......... 1
Side grip 36 ...................... 1
Note: The standard equipment for the tool shown above may vary by country.
O
ptional accessories
Vibration absorbing side grip
Toolless quick adjustable wheel cover
Toolless lock nut
Dust cover attachment
GA7050R: Accessories for 180mm angle grinder
GA9050R: Accessories for 230mm angle grinder
GA7050R/ GA9050R
Angle Grinders 180mm (7'')/ 230mm (9'')
Current (A)
Cycle (Hz)
19
50/ 60
15
50/ 60
9.6
50/ 60
9.2
50/ 60
8.8
50/ 60
Model No.
Diameter
Hole diameter
= rpm.
1
Continuous Rating (W)
Input
2,000
---
2,000
2,000
2,000
GA7050R
180 (7)
22.23 (7/8)
8,500
Yes
Yes
Yes
2.0 (6.6)
/ 2.5 (8.2)
*1
4.6 (10.1)
L
H
W
Dimensions: mm (")
GA7050R
Model No.
Length (L)
455 (17-7/8)
Width (W)
200 (7-7/8)
Height (H)
132 (5-3/16)
Max. Output (W)
Output
900
2,900
900
2,900
1,100
3,600
1,100
3,600
1,100
3,600
GA9050R
230 (9)
6,600
*2
4.8 (10.6)
PRODUCT
P 1/ 8
GA9050R
250 (9-7/8)

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Summary of Contents for Makita GA7050R

  • Page 1 Description Angle Grinders 180mm (7'')/ 230mm (9'') ONCEPT AND MAIN APPLICATIONS Models GA7050R and GA9050R are developed as upgraded sister tools of GA7050 and GA9050. Additionally to the benefits of GA7050 series models, Models GA7050R and GA9050R are equipped with Anti-restart function and Soft start feature.

  • Page 2: Necessary Repairing Tools

    V-block 1R269 Bearing extractor Assembling / Disassembling Ball bearings [2] LUBRICATIONS Apply Makita grease SG.No.0 to the following portions designated with the black triangle to protect parts and product from unusual abrasion. Item No. Description Portion to lubricate Gear housing complete Apply approx. 35g grease to Gear room.
  • Page 3 P 3/ 8 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Armature, Spiral bevel gear (small), Ball bearing 6201DDW, Ball bearing 6000DDW DISASSEMBLING (1) Disassemble Armature assembly and Small spiral bevel gear as illustrated in Figs. 2 and 3. Fig. 2 Remove Carbon brushes. And then, Separate Gear housing complete Separate Bearing box from Gear remove four 5x35 Tapping screws.
  • Page 4 P 4/ 8 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Armature, Spiral bevel gear (small), Ball bearing 6201DDW, Ball bearing 6000DDW (cont.) ASSEMBLING Assemble Gear housing section by setting Felt ring 16, Ball bearing 6201DDW and Retaining ring (INT) R-32 in place of Gear housing complete in accordance with the following steps.
  • Page 5 P 5/ 8 epair [3] DISASSEMBLY/ASSEMBLY [3]-2. Large spiral bevel gear, Ball bearing 608ZZ, Ball bearing 6202DDW DISASSEMBLING (1) Large spiral bevel gear can be disassembled as illustrated in Figs. 9, 10R and 11. Fig. 9 Remove Bearing box from Remove Ball bearing 608ZZ with 1R269.
  • Page 6 P 6/ 8 epair [3] DISASSEMBLY/ASSEMBLY [3]-2. Large spiral bevel gear, Ball bearing 608ZZ, Ball bearing 6202DDW (cont.) DISASSEMBLING (2) Ball bearing 6202DDW can be disassembled as illustrated in Fig. 12A or Fig. 12B. Fig. 12A Fig. 12B If it is difficult to remove as illustrated in Fig.
  • Page 7 P 7/ 8 epair [3] DISASSEMBLY/ASSEMBLY [3]-3. Shaft lock mechanism DISASSEMBLING (1) Remove Gear housing complete from Motor housing. Remove Bearing box from Gear housing complete as illustrated in Fig. 2. (2) Remove Armature from Gear housing complete as illustrated in Fig. 3. (3) Shaft lock mechanism can be disassembled as illustrated in Figs.

  • Page 8: Circuit Diagram

    P 8/ 8 ircuit diagram Fig. D-1 Color index of lead wires' sheath Black White Noise suppressor (if used) Field viewed from Commutator side Brown lead wire is used for some countries. Controller Blue lead wire is used for some countries. iring diagram Fig.

This manual is also suitable for:

Ga9050r