Makita MT903, Instruction Manual

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4
ENGLISH (Original instructions)
Explanation of general view
1-1. Shaft lock
2-1. Switch trigger
2-2. Lock lever
4-1. Wheel guard
4-2. Screw
4-3. Bearing box
5-1. Lock nut
5-2. Depressed center grinding wheel
5-3. Inner flange
6-1. Lock nut
6-2. Depressed center grinding wheel
6-3. Inner flange 7-1. Lock nut wrench
7-2. Shaft lock
9-1. Wire cup brush
10-1. Wire wheel brush
11-1. Lock nut
11-2. Abrasive cut-off wheel/diamond
wheel
11-3. Inner flange
11-4. Wheel guard for abrasive cut-off
wheel/diamond wheel
12-1. Lock nut
12-2. Outer flange 78
12-3. Abrasive cut-off wheel/diamond
wheel
12-4. Inner flange 78
12-5. Wheel guard for abrasive cut-off
wheel/diamond wheel
13-1. Exhaust vent
13-2. Inhalation vent
14-1. Commutator
14-2. Insulating tip
14-3. Carbon brush
15-1. Brush holder cap
15-2. Screwdriver
SPECIFICATIONS
Model MT902 MT903
Depressed center wheel diameter 180 mm 230 mm
Spindle thread M14 M14
Rated speed (n)/No load speed (n
0
) 8,500 min
-1
6,600 min
-1
Overall length 466 mm
Net weight 5.4 kg 5.7 kg
Safety class /II
• Due to our continuing programme of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
ENE048-1
Intended use
The tool is intended for grinding, sanding and cutting of
metal and stone materials without the use of water.
ENF002-1
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and can
only be operated on single-phase AC supply. They are
double-insulated in accordance with European Standard
and can, therefore, also be used from sockets without
earth wire.
ENF100-1
For public low-voltage distribution systems of
between 220 V and 250 V.
Switching operations of electric apparatus cause voltage
fluctuations. The operation of this device under
unfavorable mains conditions can have adverse effects
to the operation of other equipment. With a mains
impedance equal or less than 0.24 Ohms it can be
presumed that there will be no negative effects. The
mains socket used for this device must be protected with
a fuse or protective circuit breaker having slow tripping
characteristics.
ENG905-1
Noise
The typical A-weighted noise level determined according
to EN60745:
Model MT902,MT903
Sound pressure level (L
pA
) : 90 dB(A)
Sound power level (L
WA
) : 101 dB(A)
Uncertainty (K) : 3 dB(A)
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Model MT902
Work mode : surface grinding
Vibration emission (a
h,AG
) : 5 m/s
2
Uncertainty (K) : 1.5 m/s
2
If the tool is used for other applications, the vibration
values may be different.
Work mode : disc sanding
Vibration emission (a
h,DS
) : 2.5 m/s
2
Uncertainty (K) : 1.5 m/s
2
If the tool is used for other applications, the vibration
emission value may be different.