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MAINTENANCE
SERVICE PROCEDURE
CHECK PLAY OF OUTPUT COUPLING OF OUTPUT SHAFT
If any abnormal noise occurs around the output shaft or front drive
shaft, the rubber inside the output shaft may be deteriorated or
damaged, so check the play of the coupling as follows.
Play in circumferential direction
Using a bar, move the coupling in the direction of the
circumference and check the play in the circumferential direction at
the outside diameter of the coupling.
Standard: Max. 12 mm (0.5 in)
REMARK
If the play range is exceeded, the engine fan will start to rotate, so
when inspecting the play, check first that the engine fan is not
rotating.
If the result of the measurement shows that it is greater than the
standard value, please contact your Komatsu distributor for
disassembly and inspection.
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