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MAINTENANCE PROCEDURE
1.
Raise the bucket to a suitable height, then put a block (A)
under the bucket to prevent the bucket from lowering.
Set the bottom of bucket to be level, and put a block under
the bucket at the center.
2.
Lower the bucket on the block and stabilized it.
3.
Stop the engine.
4.
Fit the socket wrench to the shaft of pin (1), and turn it
counterclockwise by 90 ° to unlock the pin.
5.
Push out pin (1) to the direction of arrow by hand or ham-
mer, and remove 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 torque wrench, and set
it to the lock state (90 °).
2)
Rotate the shaft from the lock state (90 °) to free state
(0 °).
3)
Check that the maximum torque is 11 Nm {1.12 kgm} and above.
If the torque value is low, replace the pin with a new
one.
T1: Torque (Nm)
T2: Turning angle (degree)
REMARK
The torque value increases gradually and reaches to
the maximum at approximately 45 °, and it decreases
gradually after 45 °.
4-32
MAINTENANCE
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