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MAINTENANCE
•
It is dangerous if the work equipment moves by mistake when the tooth is being replaced.
Set the work equipment in a stable condition, set the lock lever securely to LOCK position and stop
the engine.
•
As the pin is driven out with strong force, it is dangerous that the pin may fly out. Check that there
is no people in the surrounding area.
•
Broken pieces may fly during the replacement work, so always wear the protective equipment such
as protective eyeglasses and gloves.
1.
To make it possible to drive out a pin of tooth (1), put block
(5) under the bottom of the bucket, and make the bottom
of the bucket horizontal.
2.
Check that the work equipment is in a stable condition,
then operate the control grip (g) of the lock lever to set it to
LOCK position (L).
3.
Use a hammer and drift to knock out lock pin (2).
If the drift is set against rubber pin lock (3) when it is hit,
the rubber pin lock may break. Set it against the back of
the pin.
4.
After removing lock pin (2) and rubber pin lock (3), check
them.
5.
If lock pin (2) and rubber pin lock (3) are used in the condi-
tion below, it will cause tooth (1) to come off during opera-
tion. Check the shape of the parts. If they have any dam-
age, replace them.
•
Lock pin (2) is too short.
Dimension (B) is 1/3 or more of dimension (A) when
lock pin (2) is aligned with bottom face (C).
k
k
WARNING
MAINTENANCE PROCEDURE
4-27
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