Komatsu A40034, Руководство по ремонту

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FOREWORD SAFETY
WB140PS-2N WB150PS-2N 00-3
12
SAFETY
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SAFETY NOTICE
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GENERAL PRECAUTIONS
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Mistakes in operation are extremely dangerous. Read the
OPERATION & MAINTENANCE MANUAL carefully
BEFORE operating the machine.
1.
Before carrying out any greasing or repairs, read all the
precautions given on the decals which are fixed to the
machine.
2. When carrying out any operation, always wear safety
shoes and helmet. Do not wear loose work clothes, or
clothes with buttons missing.
●
Always wear safety glasses when hitting parts with a
hammer.
●
Always wear safety glasses when grinding parts with a
grinder, etc.
3. If welding repairs are needed, always have a trained,
experienced welder carry out the work. When carrying
out welding work, always wear welding gloves, apron,
glasses, cap and other clothes suited for welding work.
4. When carrying out any operation with two or more
workers, always agree on the operating procedure
before starting. Always inform your fellow workers
before starting any step of the operation. Before starting
work, hang UNDER REPAIR signs on the controls in
the operator's compartment.
5. Keep all tools in good condition and learn the correct
way to use them.
6. Decide a place in the repair workshop to keep tools and
removed parts. Always keep the tools and parts in their
correct places. Always keep the work area clean and
make sure that there is no dirt or oil on the floor. Smoke
only in the areas provided for smoking. Never smoke
while working.
PREPARATIONS FOR WORK
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1. Before adding oil or making repairs, park the machine
on hard, level ground, and block the wheels or tracks to
prevent the machine from moving.
2. Before starting work, lower blade, ripper, bucket or any
other work equipment to the ground. If this is not possi-
ble, insert the safety pin or use blocks to prevent the
work equipment from falling. In addition, be sure to
lock all the control levers and hang warning signs on
them.
3. When disassembling or assembling, support the
machine with blocks, jacks or stands before starting
work.
4. Remove all mud and oil from the steps or other places
used to get on and off the machine. Always use the
handrails, ladders or steps when getting on or off the
machine. Never jump on or off the machine. If it is
impossible to use the handrails, ladders or steps, use a
stand to provide safe footing.
PRECAUTIONS DURING WORK
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1. When removing the oil filler cap, drain plug or hydrau-
lic pressure measuring plugs, loosen them slowly to pre-
vent the oil from spurting out. Before disconnecting or
removing components of the oil, water or air circuits,
first remove the pressure completely from the circuit.
2. The water and oil in the circuits are hot when the engine
is stopped, so be careful not to get burned. Wait for the
oil and water to cool before carrying out any work on
the oil or water circuits.
3. Before starting work, remove the leads from the battery.
ALWAYS remove the lead from the negative (-) termi-
nal first.
4. When raising heavy components, use a hoist or crane.
Check that the wire rope, chains and hooks are free from
damage. Always use lifting equipment which has ample
capacity. Install the lifting equipment at the correct
places. Use a hoist or crane and operate slowly to pre-
vent the component from hitting any other part. Do not
work with any part still raised by the hoist or crane.
5. When removing covers which are under internal pres-
sure or under pressure from a spring, always leave two
bolts in position on opposite sides. Slowly release the
pressure, then slowly loosen the bolts to remove.
6. When removing components, be careful not to break or
damage the wiring, Damaged wiring may cause electri-
cal fires.
7. When removing piping, stop the fuel or oil from spilling
out. If any fuel or oil drips on to the floor, wipe it up
immediately. Fuel or oil on the floor can cause you to
slip, or can even start fires.
8. Gasoline or other fuels should never be used to clean
parts. Clean part with appropriate solvents.
9. Be sure to assemble all parts again in their original
places. Replace any damaged part with new parts.
IMPORTANT SAFETY NOTICE
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Proper service and repair is extremely important for the safe operation of your machine. The service and repair techniques
recommended and described in this manual are both effective and safe methods of operation. Some of these operations
require the use of tools specially designed for the purpose.
To prevent injury to workers, the symbols and are used to mark safety precautions in this manual. The cautions accom-
panying these symbols should always be followed carefully. If any dangerous situation arises or may possibly arise, first con-
sider safety, and take the necessary actions to deal with the situation.
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