Makita GA5020C User Instructions
125mm (5") /150mm (6")
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- Instruction manual (76 pages)
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Instruction Manual
T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
These four models have been developed as the most advanced models of
our GA5010 series, featuring a variety of value-adding functions as follows:
*Electronic control including;
Constant speed control, Soft start, Electronic current limiter,
Anti-restart function, LED power light
*Super Joint System (SJS)
GA5020C/GA6020C use Single-finger trigger while GA5021C/GA6021C
use Large type trigger.
S
pecification
GA5020C/GA6020C
Voltage (V)
120
GA5021C/GA6021C
110
120
220
230
240
Model No.
Wheel size:
mm (")
No load speed: min.
Super Joint System (SJS)
Constant speed control
Soft start
Electronic current limiter
Anti-restart function
LED power light
Switch trigger
Protection against electric shock
Power supply cord: m (ft)
Net weight: kg (lbs)
S
tandard equipment
Lock nut wrench 35 .............. 1
Lock nut wrench 28 .............. 1
Depressed center wheel ......... 1 (125-36 for GA5020C and GA5021C, 150-36 for GA6020 and GA6021C)
Side grip (soft grip) ............... 1
Toolless wheel cover ............. 1 (if required)
Note: The standard equipment for the tool shown above may differ from country to country.
O
ptional accessories
Anti-vibration grip, Dust cover attachment, Loop handle, Toolless wheel cover
GA5020C, GA5021C: Accessories for 125mm angle grinder
GA6020C, GA6021C: Accessories for 150mm angle grinder
GA5020C/GA6020C, GA5021C/GA6021C
Angle Grinders 125mm (5") /150mm (6")
Cycle (Hz)
Current (A)
12.5
50/60
14
50/60
12.5
50/60
6.9
50/60
6.6
50/60
6.4
50/60
GA5020C
125 (5)
Diameter
Hole diameter
rpm
10,000
-1 =
Continuous Rating (W)
Input
---
1,450
---
1,450
1,450
1,450
GA6020C
150 (6)
22.23 (7/8)
9,000
Single-finger
Double insulation
Australia: 2.0 (6.6), Other countries: 2.5 (8.2)
2.5 (5.5)
L
H
W
(The image above is GA5020C/GA6020C.)
Dimensions: mm (")
GA5020C
Model No.
GA5021C
Length (L)
390 (15-3/8)
Width (W)
139 (5-1/2)
Height (H)
120 (4-3/4)
Max. Output (W)
Output
1,000
1,000
1,000
1,000
1,000
1,000
GA5021C
125 (5)
10,000
Yes
Yes
Yes
Yes
Yes
Yes
Large type
PRODUCT
P 1/10
GA6020C
GA6021C
169 (6-5/8)
2,200
2,200
2,200
2,600
2,600
2,600
GA6021C
150 (6)
9,000
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Summary of Contents for Makita GA5020C
- Page 1 Lock nut wrench 35 ....1 Lock nut wrench 28 ....1 Depressed center wheel ..1 (125-36 for GA5020C and GA5021C, 150-36 for GA6020 and GA6021C) Side grip (soft grip) ....1 Toolless wheel cover ..... 1 (if required) Note: The standard equipment for the tool shown above may differ from country to country.
-
Page 2: Necessary Repairing Tools
Lubricate the parts below in order to protect parts and product from unusual abrasion. Put approx. 15g of Makita grease SG No.0 in the gear room of Gear housing. Apply Makita Grease SG No.0 to the portions designated with the mark of . - Page 3 P 3/10 epair [3] -1. Armature, Small spiral bevel gear, Ball bearing 6000DDW (cont.) DISASSEMBLING 3) Attach one set of 1R039 to vise, then fix Armature in 1R039. Remove Hex nut M7 from the drive-end of Armature shaft by turning it counterclockwise with Wrench 11. (Fig. 3) 4) Hold Small spiral bevel gear by hand, then pull off Armature from Gear housing.
- Page 4 P 4/10 epair [3] -2. Large spiral bevel gear and Ball bearing 6002DDW Note: The gear and the ball bearing can be replaced without disassembling the Motor section. DISASSEMBLING 1) Separate Bearing box from Gear housing first by unscrewing four M5x18 Pan head screws then by tapping the end of Gear housing with plastic hammer as illustrated in Fig.
- Page 5 P 5/10 epair [3] -2. Large spiral bevel gear and Ball bearing 6002DDW (cont.) DISASSEMBLING 7) Remove Ball bearing in Bearing box by hitting Bearing box straight down against flat surface of work-bench. (Fig. 15) If cannot be removed, use arbor press and a round bar for arbor of an appropriate size as illustrated in Fig. 16. Fig.
- Page 6 P 6/10 epair [3] -3. Shaft lock section DISASSEMBLING 1) Remove Bearing box from Gear housing. (Fig. 9 on page 4) 2) Shoulder pin 5 can be removed from Gear housing using 1R268, 1R350 and plastic hammer as illustrated in Fig. 18. Fig.
-
Page 7: Circuit Diagram
P 7/10 ircuit diagram GA5020C/ GA6020C Fig. D-1 Color index of lead wires' sheath *Noise suppressor is not used for some country. Black White Orange Terminal block Insulated connector black or brown white or blue Field Controller Switch Pickup coil... -
Page 8: All Models
P 8/10 iring diagram [1] Motor housing All models Route Field lead wires as illustrated below. (Fig. D-3) Fig. D-3 Motor housing Route Field lead wires through this opening. Field lead wires (orange, white) opening Motor housing, viewed from [A] Pickup coil to which Sleeve is assembled Before assembling Pickup coil to Motor housing, route Lead wires of Pickup coil as described below:... - Page 9 P 9/10 iring diagram [2] Handle GA5020C/ GA6020C Route Field lead wires as described below in Fig. D-4. Fig. D-4 [1] Before routing Lead wires, adhere Sponge sheet to the back of Terminal block as illustrated to right. Sponge sheet...
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Page 10: Wiring Diagram
P 10/10 iring diagram [2] Handle (cont.) GA5021C/ GA6021C Route Field lead wires as described below in Fig. D-5. Fig. D-5 [1] When connecting Lead wire (c) to No.4 Terminal of Switch, insert it from the direction shown in the figure on right. No.4 Terminal [2] Before setting Switch in place, fix the following Lead wires with Lead wire holders under Switch:...