Komatsu D61EX-24 Operation & Maintenance Manual page 45

PRECAUTIONS FOR MAINTENANCE
• If battery electrolyte gets on your clothes or skin, wash it off immediately with large amounts of water.
Danger of sparks
Sparks may be generated and they can cause a fire. Always observe the following.
• Do not let tools or other metal objects make any contact between the battery cables. Do not leave tools
lying around near the battery.
• When removing the battery cables, turn the starting switch to OFF position and, after checking that the sys-
tem operating lamp goes out, set the battery disconnect switch key to OFF position and pull it out.
When removing the battery cables, remove the ground cable (negative (-) cable) first. When installing, con-
nect the positive (+) cable first, then connect the ground.
• Tighten the battery cable terminals securely.
• Secure the battery firmly in the specified position.
PRECAUTIONS WHEN USING HAMMER
When using a hammer, pins may come out or metal particles may be scattered. It is dangerous and may cause
serious personal injury or death. Always observe the following.
• When hitting pins or bucket teeth, broken pieces may be scattered, and it may cause personal injury to the
people in the surrounding area. Always check that there is no one in the surrounding area.
• If hard metal parts such as pins, bucket teeth, cutting
edges, or bearings are hit with a hammer, pieces might be
scattered, and it may cause serious personal injury or
death. Always wear protective eyeglasses and gloves.
• If the pin is hit with strong force, it may come out, and in-
jure people in the surrounding area. Do not allow anyone
to enter the surrounding area.
PRECAUTIONS FOR HIGH-TEMPERATURE COOLANT
To prevent burns from boiling water or steam spurting out when
checking or draining the coolant, wait for the coolant to cool
down to a temperature where the radiator cap can be touched
by hand. Then loosen the cap slowly to release the pressure in-
side the radiator, and remove the cap.
PRECAUTIONS FOR HIGH-TEMPERATURE OIL
To prevent burns from hot oil spurting out or from touching
high-temperature parts when checking or draining the oil, wait
for the oil to cool down to a temperature where the cap or plug
can be touched by hand. Then, loosen the cap or plug slowly to
release the internal pressure and remove the cap or plug.
2-32
SAFETY