5.
Push out the pin (1) to the direction of arrow by hand or
hammer, and remove the tooth (2).
6.
Check the torque to unlock the pin by using torque wrench
according to the following procedure.
1)
Rotate the shaft of pin (1) with the torque wrench, and
set it to the lock state (90 °).
2)
Rotate the shaft from the lock state (90 °) to the free
state (0 °).
3)
Check that the maximum torque is 11 Nm or more
{1.12 kgm or more}.
If the torque value is low, replace the pin with a new one.
REMARK
The torque value increases gradually and reaches to
the maximum at approximately 45 °, and it decreases
gradually after 45 °.
7.
Clean the mounting surface of tooth (2).
8.
Fit the new tooth (2) to the adapter.
9.
Insert the pin (1), rotate the shaft of the pin clockwise by
90 ° with socket wrench to lock the pin (1), and install the
tooth.
10.
Check that the shaft of pin (1) is locked securely.
Be careful of the direction of brim of the shaft.
(A) Free state
The brim of shaft is sideways.
(B) Lock state
The brim of shaft is upward.
11.
After operating several hours, check that the pin (1) does
not come out.
METHOD FOR REPLACING SEGMENT EDGE
Replace the segment edge before the wear reaches to the edge of the bucket.
Items to be prepared
Socket wrench with 50 mm of width across flats and torque wrench
MAINTENANCE PROCEDURE MAINTENANCE
4-34
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