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T ECHNICAL INFORMATION
Models No.
GA7010C, GA7011C
GA9010C
PRODUCT
P1/9
Description 180mm (7") Angle Grinders
L
230mm (9") Angle Grinder
CONCEPT AND MAIN APPLICATIONS H
More comfortable operation will be provided by
these new angle grinders with the following features.
*800g (1.8 lbs) lighter than the current 9067/9069 W
series models in weight.
*Yet still features the same high power as 9067/9069 Dimensions: mm (")
series models. Model No. GA7010C GA7011C GA9010C
*Electronic with soft start, current limiter and
constant speed under load Length ( L ) 453 (17-7/8)
Width ( W ) 200 (7-7/8) 250 (9-7/8)
Height ( H ) 137 (5-3/8)
Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output(W)
Input Output
110 16 50 / 60 1,650 700 2,600
120 15 50 / 60 1,650 700 2,600
a) 220 8.6 50 / 60 1,800 1,000 3,000
b) 230 9.2 50 / 60 2,000 1,200 3,000
c) 240 7.9 50 / 60 1,800 1,000 3,000
a) 220: China b) 230: Europe and high voltage area of the Middle East countries
c) 240: Australia
Model No. GA7010C GA7011C GA9010C
Diameter 180 (7) 180 (7) 230 (9)
Wheel size: mm (") Hole diameter 22.23 (7/8)
Thickness 6 (1/4)
No load speed: min.-1 = rpm. 8,400 6,000 6,000
Current limiter Yes
Electronic features Soft start Yes
Constant speed Yes
Australia 2.0 (6.5)
Cord length: m (ft)
Others 2.5 (8.2)
Net weight: kg (lbs) 3.4 (7.5)
Standard equipment
*Lock nut wrench 35 ..................................... 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
Optional accessories
*Dust cover attachment
For GA7010C, GA7011C
*Assorted accessories for 180mm (7") angle grinder
For GA9010C
*Assorted accessories for 230mm (9") angle grinder
P2/9
Features and benefits
Weighs Only 3.4kg (7.5lbs) to Reduce
Operator Fatigue in Long Continuous Use. Electronic with
800g (1.8lbs) lighter than the current 9067/9069 series 1. Constant speed under load
models, yet features the same high power as them 2. Current limiter for protection against overload
thanks to the new S71 motor and electronic features. 3. Soft start for minimized startup reaction force
Easy-to-Operate Large Rotatable Gear Housing Cooling Vents with
Spindle Lock Button Labyrinth Structure
Can be positioned at every
90 degrees to suit most cutting Seal out dust and debris
and grinding operations. for long tool life.
Auto Cut-Out Brushes
Dust Cover Attachment
(optional accessory)
Can be installed with one-touch
action to seal out coarse dust
such as aluminum dust.
O Rings for Protection from Wheel Cover can be rotated
Grease-Leakage and fixed at any desired position
Placed in the following portions; without tool.
*Joint between gear housing and
Bearing box
*Shaft lock pin installation hole
High Dust-Proof Construction
*All dust-proof ball bearing construction
*Labyrinth ring on armature shaft
*Dust-seal washer on all ball bearings
*Protective zigzag varnish on armature
and tape on field
P3/9
Comparison of products
180mm (7") Electronic Angle Grinder
Mode No. Makita A B C
GA7010C/
Specifications GA7011C
9067/ 9067L A B C
Wheel size: Diameter 180 ( 7 ) 180 ( 7 ) 180 ( 7 ) 180 ( 7 ) 180 ( 7 )
mm (") Hole diameter 22.23 ( 7/8 ) 22.23 (7/8) 22.23 (7/8) 22.23 (7/8) 22.23 (7/8)
110V/120V 1,650
Power input: W 230V 2,000 2,000 1,800 1,800 1,520
220V/240V 1,800
No load speed: min-1=rpm 8,400/ 6,000 8,500 / 6,600 7,000 8,000 7,600
Electronic
Constant speed under load Yes No Yes No Yes
Soft start Yes No Yes No Yes
Current limiter Yes No Yes* No No**
Tool- Wheel change No No No No Yes
less Wheel guard adjustment Yes No Yes No No
Auto cut-out brush Yes Yes Yes Yes Yes
Double insulation Yes Yes Yes Yes Yes
Power supply cord: m (ft) 2.5 (8.2) 2.5 (8.2) 4.0 (13.1) 4.0 (13.1) 4.0 (13.1)
Length 453 (17-7/8) 458 (18) 447 (17-5/8) 407 (16) 385 (15-1/8)
Dimensions: mm (") Width 200 (7-7/8) 200 (7-7/8) 194 (7-5/8) 196 (7-3/4) 193 (7-5/8)
Height 137 (5-3/8) 139 (5-1/2) 127 (5) 114 (4-1/2) 109 (4-1/4)
Net weight: kg (lbs) 3.4 (7.5) 4.2 (9.3) 3.5 (7.7) 3.2 (7.1) 2.2 (4.9)
Lock nut wrench
Lock nut wrench Lock nut wrench Lock nut wrench
Standard equipment Side grip Side grip
Side grip Side grip Side grip
Cut off wheel
*electronic control + thermistor
**thermistor only
230mm (9") Electronic Angle Grinder
Mode No. Makita D
Specifications GA9010C 9069 D
Wheel size: Diameter 230 (9) 230 (9) 230 (9)
mm (") Hole diameter 22.23 (7/8) 22.23 (7/8) 22.23 (7/8)
110V/120V 1,650
Power input: W 230V 2,000 2,000 1,200
220V/240V 1,800
No load speed: min-1=rpm 6,000 6,600 4,000
Electronic
Constant speed under load Yes No No
Soft start Yes No No
Current limiter Yes No No
Tool- Wheel change No No No
less Wheel guard adjustment Yes No No
Auto cut-out brush Yes Yes No
Double insulation Yes Yes Yes
Power supply cord: m (ft) 2.5 (8.2) 2.5 (8.2) 5.0 (16.4)
Length 453 (17-7/8) 458 (18) 430 (17)
Dimensions: mm (") Width 250 (9-7/8) 250 (9-7/8) 250 (9-7/8)
Height 137 (5-3/8) 139 (5-1/2) 130 (5-1/8)
Net weight: kg (lbs) 3.4 (7.5) 4.2 (9.3) 3.8 (8.4)
Lock nut wrench
Lock nut wrench Lock nut wrench Side grip
Standard equipment
Side grip Side grip Hex wrench
Wrench
P4/9
Comparison of products
[1] Grinding Test
Test conditions: Ground a S45C Carbon steel plate for 10 minutes.
Comparison of Amount of Stock Removed
180mm (7") Angle Grinder 230mm (9") Angle Grinder
Little Much Little Much
Makita GA7010C 90 Makita GA9010C 95
Makita 9067 100 Makita 9069 100
A A 75 0 20 40 60 80 100
B B 75
C C 65 Note: Numbers in these graphs are relative values
when the amount removed by Makita 9067/9069
0 20 40 60 80 100 are indexed at 100.
[2] Cutting Test (1)
Test conditions: Cut a 600mm long concrete plate to a depth of 20mm.
Comparison of Cutting Speed
180mm (7") Angle Grinder 230mm (9") Angle Grinder
Slow Fast Slow Fast
Makita GA7010C 105 Makita GA9010C 105
Makita 9067 100 Makita 9069 100
A A 85 0 20 40 60 80 100
B B 95
C C 75 Note: Numbers in these graphs are relative values
when the time required by Makita 9067/9069
0 20 40 60 80 100 are indexed at 100.
[3] Cutting Test (2)
Test conditions: Cut a 600mm long concrete plate to a depth of 40nn.
Comparison of Cutting Speed
180mm (7") Angle Grinder 230mm (9") Angle Grinder
Slow Fast Slow Fast
Makita GA7010C 105 Makita GA9010C 95
Makita 9067 100 Makita 9069 100
A A 95 0 20 40 60 80 100
B B 100
C C 85 Note: Numbers in these graphs are relative values
when the time required by Makita 9067/9069
0 20 40 60 80 100 are indexed at 100.
P5/9
Repair
CAUTION: For your safety, before maintenance or repair, be sure to;
1. Disconnect the machine from the power source.
2. Remove the wheel from the machine.
[1] Necessary Repairing Tools
Tool No./ Description Use for
1R035/ Bearing Setting Plate Press-fitting Ball bearings
1R045/ Gear Extractor (large) Removing Gear housing cover and Bearing box
1R229/ 1/4" Hex Shank Bit M5 Removal/Installation of the Hex socket head bolts that fasten Bearing box
1R269/ Bearing Extractor Removing ball bearing 608DDW on the commutator end of Armature shaft
1R291/ Retaining Ring S and R Pliers Removal/Installation of the Retaining ring that retains larger Spiral bevel gear
1R340/ Bearing Retainer Wrench Removal/Installation of Bearing retainer
[2] Lubrication Fig. 1
Put 40g of Makita grease SG. No.0 into the gear room of Gear housing
for a long gear life. (Fig. 1) Gear room
[3] Disassembling and Assembling
Note: As listed to left, the grinders use different Smaller spiral bevel gear Larger spiral bevel gear
spiral bevel gears, and they are not Model No. (on armature shaft) (on spindle)
interchangeable.
GA7010C 11 teeth 37 teeth
Referring to this list, therefore, be sure to
use correct gears for replacement. GA7011C
9 teeth 43 teeth
GA9010C
[3]-1. Replacing Armature, Smaller Spiral Bevel Gear and Ball Bearing 6201LLB
DISASSEMBLING
Note: Disassembling can be done without disassembling Gear Fig. 2
housing section.
1) After removing Carbon brushes, by removing four 5x30 Tapping Slide Gear
screws, Gear housing section can be separated from Motor housing. housing cover.
2) Slide Gear housing cover until you see the corners on the end of
Motor housing. And then by striking two of the corners with plastic
hammer, the assembly of Armature and Gear housing cover can be
separated from Motor housing. (Fig. 2)
3) Remove Hex nut M6 by turning counterclockwise while holding
Armature firmly by hand. Now smaller Spiral bevel gear can be
Strike two corners
removed from Armature shaft by hand.
on the end of
4) Remove Gear housing cover from Armature using Gear Extractor,
Motor housing.
large (No.1R045). (Fig. 3) Ball bearing 6201LLB is still on Gear
housing cover at this step. Therefore, remove the bearing with
arbor press and a round bar. (Fig. 4)
Fig. 3 Fig. 4
Gear Extractor, large (No.1R045) Gear housing cover
Round bar
Gear housing cover
Ball bearing 6201LLB Ball bearing 6201LLB
P6/9
Repair
ASSEMBLING
Follow the reverse of disassembling procedure as described below.
1) Insert ball bearing 6201LLB straight into Gear housing cover.
And then put Bearing setting plate (No.1R035) on arbor press, and then put Gear housing cover on Bearing setting plate.
Press-fit Armature to Gear housing cover using arbor press. (Fig. 5)
2) Install smaller Spiral bevel gear on Armature shaft, and tighten Hex nut M6 securely with a spanner 10.
And then install the assembly of Armature and Gear housing cover on motor housing, and align the screw holes on Gear
housing cover with those of Motor housing.
3) Aligning the protrusion on gear housing with that on Motor housing, fit Gear housing to gear housing cover. (Fig. 6)
Fasten Gear housing to Gear housing cover and Motor housing with four 5x30 Tapping screws.
Fig. 5 Fig. 6
Gear housing Gear housing cover
Armature
Motor housing
Gear housing cover
Bearing Setting Plate Align the projection on Gear housing
(No.1R035) with that on Motor housing.
[2]- 2. Replacing Larger Spiral Bevel Gear and Ball Bearing 6202DDW
DISASSEMBLING
Note: Disassembling can be done without disassembling Gear housing section.
1) Using a Makita impact driver and Hex shank bit M5 (No. 1R229), remove four M5x16 Hex socket bolts that fasten
Bearing box to Gear housing.
2) Insert two slotted screwdrivers into two diagonal positions on the slit between Bearing box and Gear housing.
And twist the two screwdrivers at the same time till Bearing box is lifted up approximately 3mm.
And then insert the screwdrivers further into the slit, and remove Gear housing from Gear housing cover by lifting it
up with the screwdrivers. (Fig. 7)
Fig. 7
Slotted screwdriver
Bearing box
Gear hosing
(continued to next page)
P7/9
Repair
[3]- 2. Replacing Larger Spiral Bevel Gear and Ball Bearing 6202DDW (cont.)
DISASSEMBLING
3) Remove Ball bearing 608LLB from spindle using Bearing extractor (No.1R269) as illustrated to left in Fig. 8.
4) Remove Retaining ring S-15 from Spindle using Retaining ring S and R pliers (No.1R291) as illustrated
to right in Fig. 8. Now larger Spiral bevel gear and Woodruff key can be removed from Spindle by hand.
5) Remove spindle by pushing with Gear Extractor, large (No.1R045). (Fig. 9)
Fig. 8 Fig. 9
Bearing Extractor Retaining Ring
(No.1R269) S and R Pliers
(No.1R291) Gear Extractor, large (No.1R045)
Bearing box
Retaining
ring S-15
Spindle
Ball bearing
608LLB
6) Hold Bearing box securely with vise, and remove Fig. 10
Bearing retainer from Bearing box using Bearing
Turn the handle of
retainer wrench (No.1R340) as illustrated in Fig. 10.
Bearing retainer
7) Remove Ball bearing 6202DDW from Bearing box Bearing box
wrench (No.1R340)
by hitting it straight against the surface of work bench.
counterclockwise.
If cannot be removed, use arbor press.
ASSEMBLING Fig. 11
Follow the reverse of disassembling steps.
Note: When installing the larger Spiral bevel gear onto Spindle,
Be careful not to allow Woodruff key 4 to be out of position. Larger spiral bevel gear
It is recommended to apply grease to the key slot on Spindle
in order to hold the Woodruff key securely in place. (Fig. 11)
Woodruff key 4
[3]- 3. Replacing Shaft Lock Section
DISASSEMBLING Fig. 12
1) Remove Bearing box from Gear housing. (Fig. 7)
2) Pull off Shoulder pin 7 with pliers while pushing Pin cap with a Shoulder pin 7 Gear housing
finger. (Fig. 12)
Note: Do not pull off shoulder pin 7 without holding pin cap because Compression
Compression spring 7 would sling Pin cap. spring 7
ASSEMBLING
Follow the reverse of disassembling steps.
Note: Do not reinstall removed Pin cap because removal of Shoulder
pin 7 damages the inside surface of Pin cap. Be sure to remove Pin cap
plastic dust of Pin cap from Shoulder pin 7 and to install it onto
a brand-new Pin cap.
P8/9
Circuit diagram
Fig. 13
Blue or white Insulated
terminal
Field
Insulated
Controller terminal
Switch
Insulated
terminal
Pick up coil
Power supply cord
Color index of lead wires' sheath
Noise Black
suppressor White
Red
The parts illustrated in this Insulated Orange
gray square are not used terminal Choke coil
Blue
for some countries.
Wiring diagram
[1] Wiring on Motor Housing
1) Draw the lead wires of (a), (b), (c), (d), (e) and (f) Motor housing
through the openings (areas colored gray), and hold
them with lead wire holders. (Fig. 14)
2) And then route the lead wires as illustrated below
in Fig. 14.
Note: Illustrated in Fig. 14 is Motor housing
viewed from the side of A. [A]
Fig. 14
(a) Field lead wire (white)
(b) Field lead wire (black) Put (a) Field lead wire (white) under
(c) Field lead wire (black) (b) Field lead wire (black) when
Lead wire from holding them with lead wire holders.
Choke coil (orange)*
(d) Connecting lead wire (black)
Put insulated terminal of brush holder
in this compartment
on Motor housing. (e) Connecting lead wire (black)
of brush holder
Lead wire
holders Put insulated terminal
in this compartment
Hold the lead wire from on Motor housing.
Choke coil (orange)*
with the lead wire holders
located outside of the
Lead wire from Choke coil (orange)*
lead holders for (c) Field
lead wire (black). (f) Field lead wire (black)
Put (f) Field lead wire (black) on the
Choke coil* Pickup coil lead wire from Choke coil (orange)*
Put choke coil* into when holding them with lead wire
the opening. holder.
*Some countries do not use Choke coil.
P9/9
Wiring diagram
[2] Wiring of the Lead Wires of Pickup Coil
Motor housing
1) First, route the white lead wire of pickup coil under the rib.
And then hold both of the white and the black lead wires
with the lead wire holder. (Fig. 15)
2) When installing Handle (L) onto Motor housing, route the Pickup coil
two lead wires as illustrated in Fig. 16.
Fig. 15 Fig. 16
Lead wire holder
Rib
Lead wire of
pickup coil
(black)
Lead wire of
pickup coil Pickup coil
Rib Handle (L) Boss on Handle (L)
(white)
[3] Wiring in Handle
Fig. 17
Before setting Switch in place, hold the four lead wires
with the lead wire holders under switch as illustrated below.
Lead wire from Noise suppressor (white)*
Lead wire from Controller (blue or white)
Field lead wire (white)
Lead wire from Controller (red)
Lead wire holders
Put the lead wire from Controller (blue or white)
and the lead wire from Choke coil (orange)*
under the other lead wires.
Noise suppressor* Boss
Switch
Rib
Route lead wires between rib and boss Boss
and between rib and wall of handle (L).
Note: Some countries do not use the electrical parts with an asterisk.