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PRECAUTIONS FOR MAINTENENCE
PRECAUTIONS WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION
Grease is pumped into the track tension adjustment system
under high pressure. If the specified procedure for maintenance
is not followed when making adjustment, grease drain valve (1)
may fly out and cause serious injury or damage.
When loosening grease drain valve (1) to loosen track tension,
never loosen it more than one turn. In doing so, loosen the valve
slowly.
Never put your face, hands, feet, or any other part of your body
directly in front of grease drain valve (1).
DO NOT DISASSEMBLE RECOIL SPRING
Never attempt to disassemble the recoils spring assembly. It contains a spring under high pressure which serves
as a shock absorber for the idler. If it is disassembled by mistake, the spring will fly out and cause serious injury.
When it becomes necessary to disassemble it, ask your Komatsu distributor to do the work.
PRECAUTION WITH HIGH-PRESSURE OIL
The hydraulic system is always under internal pressure. When inspecting or replacing piping or hoses, always
check that the pressure in the hydraulic circuit has been released. If the circuit is still under pressure, it will lead to
serious injury, so always do as follows.
Do not carry out inspection or replacement work when the hydraulic system is under pressure.
If there is any leakage from the piping or hoses, the surrounding area will be wet, so check for cracks in the piping
and hoses and for swelling in the hoses.
When carry out inspection, wear safety glasses and leather gloves.
There is a hazard that high-pressure oil leaking from small holes
may penetrate your skin or cause blindness if it contacts your
eyes directly. If you are hit by a jet of high-pressure oil and suffer
injury to your skin or eyes, wash the place with clean water, and
consult a doctor immediately for medical attention.
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