General Operational Precautions - Hitachi C 13U Manual

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GENERAL OPERATIONAL PRECAUTIONS

1. Keep work area clean. Cluttered areas and benches
invite injuries.
2. Consider work area environment. Don't expose power
tools to rain. Don't use power tools in damp or wet
locations. Keep work area well lit.
Don't use tool in presence of flammable liquids or
gases.
Power tools produce sparks during operation. They
also spark when switching ON/OFF. Never use power
tools in dangerous sites containing lacquer, paint,
benzine, thinner, gasoline, gases, adhesive agents,
and other materials which are combustible or explo-
sive.
3. Guard against electric shock. Prevent body contact
with grounded surfaces. For example; pipes, radiators,
ranges, refrigerator enclosures.
4. Keep children away. Do not let visitors contact tool or
extension cord. All visitors should be kept away from
work area.
5. Store idle tools. When not in use, tools should be
stored in dry and high or locked-up place—out of reach
of children.
6. Don't force tool. It will do the job better and safer at the
rate for which it was intended.
7. Use right tool. Don't force small tool or attachment to
do the job of a heavy-duty tool. Don't use tool for
purpose not intended —for example —don't use circu-
lar saw for cutting tree limbs or logs.
8. Dress properly. Do not wear loose clothing or jewelry.
They can be caught in moving parts. Rubber gloves
and non-skid footwear are recommended when work-
ing outdoors. Wear protective hair covering to contain
long hair.
9. Use eye protection. Also use face or dust mask if
cutting operation is dusty.
10. Don't abuse cord. Never carry tool by cord or yank it to
disconnect from receptacle. Keep cord from heat, oil
and sharp edges.
11. Secure work. Use clamps or a vise to hold work. It's
safer than using your hand and it frees both hands to
operate tool.
12. Don't overreach. Keep proper footing and balance at
all times.
13. Maintain tools with care. Keep tools sharp and clean
for better and safer performance. Follow instructions
for lubricating and changing accessories. Inspect tool
cords periodically and if damaged, have repaired by
authorized service center. Inspect extension cords pe-
riodically and replace if damaged. Keep handles dry,
clean, and free from oil and grease.
14. Disconnect tools. When not in use, before servicing,
and when changing accessories, such as blades, bits,
cutters.
15. Remove adjusting keys and wrenches. Form habit of
checking to see that keys and adjusting wrenches are
removed from tool before turning it on.
16. Avoid unintentional starting. Don't carry plugged-in
tool with finger on switch. Be sure switch is off when
plugging in.
17. Outdoor use extension cords. When tool is used out-
doors, use only extension cords intended for use out-
doors and so marked.
18. Stay alert. Watch what you are doing. Use common
sense. Do not operate tool when you are tired.
20
19. Check damaged parts. Before further use of the tool, a
guard or other part that is damaged should be care-
fully checked to determine that it will operate properly
and perform its intended function. Check for alignment
of moving parts, binding of moving parts, breakage of
parts, mounting, and any other conditions that may
affect its operation. A guard or other part that is dam-
aged should be properly repaired or replaced by an
authorized service center unless otherwise indicated
else where in this handling instructions. Have defec-
tive switches replaced by authorized service center. Do
not use tool if switch does not turn it on and off.
20. Use the power tools only for applications specified in
the Handling Instructions.
21. To avoid personal injury, use only the accessories or
attachment recommended in these handling instruc-
tions or in the HITACHI catalog.
22. Let only the authorized service center do the repairing.
The manufacturer will not be responsible for any dam-
ages or injuries caused by repair by unauthorized per-
sons or by mishandling of the tool.
23. To ensure the designed operational integrity of power
tools, do not remove installed covers or screws.
24. Do not touch movable parts or accessories unless the
power source has been disconnected.
25. Use your tool at lower input than specified on the
nameplate; otherwise, the finish may be spoiled and
working efficiency reduced by motor overload.
26. Do not wipe plastic parts with solvent. Solvents such
as gasoline, thinner, benzine, carbon tetra- chloride,
alcohol, ammonia and oil containing chloric annex
may damage and crack plastic parts. Do not wipe them
with such solvent. Wipe plastic parts with a soft cloth
lightly dampened with soapy water.
27. Use only genuine HITACHI replacement parts.
28. Disassemble this tool only for replacement of carbon
brushes.
29. Use the exploded assembly drawing on this han-dling
instructions only for authorized servicing.
PRECAUTIONS ON USING CIRCULAR SAW
1. Do not use saw blades which are deformed or cracked.
2. Do not use saw blades made of high speed steel.
3. Do not use saw blades which do not comply with the
characteristics specified in these instructions.
4. Do not stop the saw blades by lateral pressure on the
disc.
5. Always keep the saw blades sharp.
6. Ensure that the safety cover moves smoothly and
freely.
7. Never use the circular saw which its safely cover fixed
in the open position.
8. Ensure that the retraction mechanism of the guard
system operates correctly.
9. The saw blades body must be thinner than the riving
knife and the width of cut, or kerf (with teeth set) must
be greater than the thickness of the riving knife.
10. Never operate the circular saw with the saw blade
turned upward or to the side.
11. Ensure that the material is free of foreign matter such
as nails.
12. The riving knife should always be used except when
plunging in the middle of the work piece.
13. The saw blades should be from 305 mm to 335 mm
external diameter ranges.