Komatsu PC1250-11, Original Instructions Manual

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METHOD FOR REMOVING SLING
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WARNING
• Remove the sling if it is attached to the bucket teeth. If
digging work is performed with the sling attached, the
sling may break. The broken pieces may fly and it is
dangerous.
• It is dangerous if the work equipment moves by mis-
take during the sling removal work.
Set the work equipment in a stable condition, stop the
engine and set the lock lever securely to LOCK posi-
tion.
• Broken pieces may fly during the sling removal work,
so always wear the protective equipment such as pro-
tective eyeglasses.
• Never hit the rocks with the teeth trying to remove the
sling.
Broken pieces of the sling may fly and it may lead seri-
ous injury.
NOTICE
The following problems may occur if you operate the machine without removing the sling.
• The sling at tooth tip interferes with the boom when moving the arm to IN position and the bucket to
CURL position.
• The crack generated when the sling was broken developed to the teeth, and it may damage the ma-
chine body eventually.
• The sling may break during the cutting operation, and the broken pieces may get mixed in with the
soil or quarry to be loaded.
Always observe the following procedure for the sling removal work.
1.
Place a block under the bucket, and stop the engine.
2.
Turn the staring switch key to ON position within 15 sec-
onds after stopping the engine, and move each control lev-
er (for work equipment and travel) to the full stroke in all di-
rections in order to release the internal pressure.
3.
Check that the work equipment is in a stable condition,
then operate the operating portion (g) of the lock lever to
set it to LOCK position (L).
MAINTENANCE MAINTENANCE PROCEDURE
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