Operating The Grinder - Hitachi GP10DL Instruction Manual

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OPERATING THE GRINDER

WARNING
● Keep your face away from the tip tool
during use.
● Wear goggles and a dust mask when using
the grinder. Breakage of the tip tool may
lead to injury.
● Do not operate the grinder at extremely
slow speed. A smooth fi nished surface will
not be achieved and doing so may lead to
damage of the tip tool, breakdown of the
grinder or injury.
Workpiece
material Softwood Hardwood
Tip tool
Aluminium oxide
point
Silicon carbide
point
High-speed cutter
Drill
Cutting wheel
Aluminium oxide
grinding wheel
Sanding disc
Polishing wheel
Felt polishing
wheel
Sanding band
18
Table 5 Switch dial settings
Laminate/
Plastic
3-4 3-4
— —
3-4 3-4
3-4 3-4
— —
3-4 3-4
2.5 2.5
— —
— —
1-4 1-4
CAUTION
Do not touch the tip tool, collet nut or collet
immediately after machining as they will be
very hot and touching them may result in
burns.
1. Remove the battery and attach the tip tool
2. Fix the workpiece so that it does not move
The smaller the workpiece, the more unstable it
is to machine. Fix small workpieces in a vise.
Holding the workpiece by hand may result in
injury.
3. Insert the battery in the grinder
4. Check the balance of the tip tool
Check the tip tool visually at low speed (around
[1] on the switch dial).
Also check
operation.
5. Select the machining speed
○ Select the optimal speed for the material while
performing trial grinding with reference to Table
5.
○ If plastic is machined at high speed, it may melt
due to heating. Test it gradually starting from a
low speed.
Aluminium,
Steel
brass, etc.
— 2.5 1
1.5 3-4 1
1 1.5 3-4
1 — 1.5
1 3-4 3-4
— 2.5 1
1 —
— 1 1
— 1 1
1-4 3-4 3-4
for abnormal noise
Shell/
Ceramic
Stone
1.5 3-4
1.5 3-4
— —
— —
3-4 3-4
1.5 3-4
1 — —
1 1
— —
1-4 1-4
during
Glass
—
3-4
—
—
—
—
—
1
—
—