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General precautions
Inappropriate handling creates an extreme
k
k
danger. Read and understand what is
described in the Operation and Maintenance
Manual before operating the machine. In
addition read this manual carefully and
understand its contents before starting work.
• Before performing any greasing or repairs, read
all the safety labels stuck to the machine. For
the locations of the safety labels and detailed
explanation of precautions, see the Operation
and Maintenance Manual.
• Locate 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, water, or oil on the floor. Smoke only in
the areas provided for smoking. Never smoke
while working.
• When performing any operation, always wear
safety shoes and helmet. Do not wear loose
work clothes, or clothes with buttons missing.
• Always wear the protective eyeglasses when
hitting parts with a hammer.
• Always wear the protective eyeglasses when
grinding parts with a grinder, etc.
• When performing 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 warning tag in the operator's
compartment.
• Only qualified workers must perform the work
and operation which require license or
qualification.
• Keep all tools in good condition, learn the correct
way to use them, and use the proper ones.
Before starting work, thoroughly check the tools,
machine, forklift truck, service car, etc.
• If welding repairs are needed, always have a
trained and experienced welder perform the
work. When performing welding work, always
wear welding gloves, apron, shielding goggles,
cap and other clothes suited for welding work.
• Before starting work, warm up your body
thoroughly to start work under good condition.
• Avoid continuing work for long hours and take
rests at proper intervals to keep your body in
good condition and at the provided place.
Precautions for preparatory work
• Before adding oil or making any repairs, place
the machine on a firm and level ground, and
apply the parking brake and chock the wheels or
tracks to prevent the machine from moving.
HB215LC-2
00 Index and foreword
Foreword, safety and general information
• Before starting work, lower the work equipment
(blade, ripper, bucket, etc.) to the ground. If this
is not possible, insert the lock pin or use blocks
to prevent the work equipment from falling. In
addition, be sure to lock all the control levers
and hang warning tag on them.
• When performing the disassembling or
assembling work, support the machine securely
with blocks, jacks, or stands before starting the
work.
• 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
• For the machine equipped with a battery
disconnect switch, before starting the work,
check that the system operating lamp is turned
OFF, and then turn the battery disconnect switch
to the OFF(Q) position and pull the switch key
out. For machines without a battery disconnect
switch, before starting the work, remove the
cables from the battery. Always remove the
cable from the negative (-) terminal first.
• Before disconnecting or removing components
of the oil or fuel or water or air circuits, first
release the remaining pressure completely from
the circuit. When removing the oil filter cap, a
drain plug, or an oil pressure pickup plug, loosen
it slowly to prevent the oil from spurting out.
• When removing or installing the checking plug or
the piping in the fuel circuit, wait 30 seconds or
longer after the engine is shut down and start
the work after the remaining pressure is
released from the fuel circuit.
• The coolant and oil in the circuits are hot when
the engine is shut down, so be careful not to get
scalded. Wait for the oil and coolant to cool
before performing any work on the oil or coolant
circuits.
• Before starting work, shut down the engine.
When working on or around a rotating part, in
particular, shut down the engine. When checking
the machine without shutting down the engine
(measuring oil pressure, revolving speed,
temperature, etc.), take extreme care not to get
caught in rotating parts or moving parts.
• When raising a heavy component (heavier than
25 kg), use a hoist or crane. Before starting work,
check that the slings (wire ropes, chains, and
hooks) are free from damage. Always use slings
which have ample capacity and install them to
proper places. Operate the hoist or crane slowly
to prevent the component from hitting any other
00-17
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