Maktec MT954 Manual

Model No.
Description
PRODUCT
TECHNICAL INFORMATION
CONCEPT AND MAIN APPLICATIONS
P 1/ 5
Specification
Standard equipment
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 256 (10-1/8)
92 (3-5/8)
118 (4-5/8)
Note: The standard equipment for the tool shown above may vary by country.
MT954
Angle Grinder 100mm (4”)
Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max. Output (W)
110 570
570
350
350
650
650
100 (4)
16 (5/8)
6 (1/4)
2.0 (6.6)
1.5 (3.3)
Current (A)
5.5
220 2.7
50/60
50/60
570 350 650
230/ 240 2.5 50/60
No load speed: min.-1 = rpm.
Diameter
Thickness
Hole diameter
Wheel size: mm (")
Cord length: m (ft)
Net weight: kg (lbs)
12,000
Protection from electric shock by double insulation
Lock nut wrench .............................. 1
MT954 is a 100mm (4”) angle grinder with rear position toggle switch type.
Developed as the predecessor model of MT950, featuring reduction
of gear noise.
L
W
H

Repair
P 2/ 5
< 1 > Lubrication
Apply Makita grease N. No.1 to the following portions marked with black triangle to protect
parts and product from unusual abrasion.
< 2 > Assembling and disassembling
( 1 ) Disassembling armature and straight bevel gear 14.v
1. Detach grinding wheel by unscrewing lock nut. And then, remove inner flange and wheel cover. See Fig. 1.
Gear housing
Apply 10g of N Makita grease
into gear housing.
2. Take of brush holder cap and carbon brush from motor housing. See Fig. 1.
3. Separate gear housing from motor housing by unscrewing 4 pcs. of pan head screws M4x16. Pull out armature
from motor housing. See Fig. 1.
4. Holding armature body firmly with your hand, unscrew hex nut M6 with wrench 10. Then, straight bevel gear 14
can be separated from armature. See Fig. 2.
5. Disassemble ball bearing 6000ZZ with No. 1R269 "Bearing Extractor (small)". Then armature can be separated
together with flat washer 9, from bearing retainer 69. See Fig. 2.
Pan head screw M4x16
Wheel cover
Gear housing
Brush holder cap
Carbon brush
Inner flange
Lock nut 10-30
Grinding wheel
M4x16 Pan head
screws (4 pcs.)
Armature
Motor housing
Bearing retainer 69
Fig. 1
Hex nut M6 : Unscrew with wrench 10.
Straight bevel
gear 14
Ball bearing 6000ZZ : Disassemble with No. 1R269
"Bearing Extractor (small)".
Bearing retainer 69
Flat washer 9
Armature
Fig. 2

( 2 ) Assembling armature and straight bevel gear 14.
1. Assemble bearing retainer 69 to armature. See Fig. 3.
2. Assemble flat washer 9. See Fig. 3.
3. Assemble ball bearing 6000ZZ by pressing with arbor press. See Fig. 3.
4. Fasten straight bevel gear 14 to armature with hex nut M6. See Fig. 3.
( 3 ) Disassembling straight bevel gear 35.
1. After removing lock nut, grinding wheel, inner flange and wheel cover, unscrew 4 pcs. of pan head screws
M4x16. Then, gear section can be separated from gear housing.
2. Holding the flat portion of spindle with vice, unscrew hex nut M10. Then, straight bevel gear 35 can be
disassembled from spindle. In this process, no need to use arbor press for disassembling spindle.
Hex nut M6 : Unscrew with wrench 10.
Straight bevel
gear 14
Ball bearing 6000ZZ : Disassemble with No. 1R269
"Bearing Extractor (small)".
Bearing retainer 69
Flat washer 9
Armature
Fig. 3
5. Assemble the above armature to motor housing.And assemble gear housing to the motor housing, and then
fasten the gear housing with 4 pcs. of pan head screws M4x16. See Fig. 4.
6. Assemble carbon brushes and fasten them with brush holder cap. See Fig. 4.
Brush holder cap
Carbon brush
Pan head
screws M4x16 : 4 pcs.
Armature
Motor housing
Bearing retainer 69
Fig. 4
4 pcs. of pan head
screws M4x16
Hex nut M10
Straight bevel gear 35
Repair
P 3/ 5

Circuit diagram
Wiring diagram
Color index of lead wires
Black
White
Blue
Power supply cord
Switch
Field
1
2
Terminal
block
Noise suppressor
Blue or white Black or brown
The following lead wires have to be passed
outside of the lead wires to be connected to
brush holder, respectively.
* Field lead wire (white) to be connected to switch
* Field lead wire (black) to be connected to terminal
block
The insulated terminals have to be
connected with switch terminals as
illustrated in Fig. B.
Fix the lead wire (blue or white) of power supply cord,
with lead holder as illustrated in Fig. B.
Field lead wire (white)
to be connected to switch
Field lead wire (black)
to be connected to
terminal block
Lead wires (white) to be
connected to brush holder
Lead wires (black) to be
connected to brush holder
Power supply cord
Strain relief
Terminal block Switch
Insulated
terminal connected
with switch terminal
Fig. A
Fig. B
Lead holder
A
B
C
View from A
P 4/ 5

Wiring diagram
Field lead wire (white)
to be connected to switch
Fix the following lead wires with
the slit of support as illustrated in Fig. C.
* Field lead wire (white)
to be connected to switch
* Field lead wire (white)
to be connected to switch
If noise suppressor is assembled,
set it in the position illustrated in
Fig. D.
Assemble terminal block to the position illustrated in
Fig. E.
Fix the following lead wires to be connected to
terminal block, with lead holder. See Fig.F and F-1.
* Field lead wire (black)
* Noise suppressor lead wire (black)
Field lead wire (black)
to be connected to terminal
block
Fig. C
Fig. D
Fig. E
Fig. F
Slits of
support
A
B
C
View from B
View from C
Field lead wire (black) to be
connected to terminal block
Noise suppressor lead wire (black)
to be connected to terminal block
Noise suppressor lead wire (black)
to be connected to switch
Noise
suppressor
Power supply cord
Switch
Switch
Terminal block
Support
Support
Terminal block
Switch
Noise suppressor
Lead holder
Noise suppressor
lead wire (black)
Fig. F-1
Field lead wire (black)
P 5/ 5