Drop Ball Operation - Komatsu 06253 Operation & Maintenance Manual

Hydraulic mining shovel
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3.13 WORKING WITH THE ATTACHMENT

3.13.4 DROP BALL OPERATION

SAFETY INSTRUCTIONS
Make sure all safety devices are correctly installed on
your machine.
Always walk-around and look for hazards before you
operate your machine in the work area.
Consult the supervisor of the job site for instructions
concerning safe operation in the work area.
Know the rules for movement of people and machines on
the job site. Follow the instructions of the supervisor.
Before starting drop ball operation, clear area of other
persons and sound the signal horn. Stop drop ball opera-
tion when other persons approaching to the work area.
The drop ball must never be placed loosely in the bucket.
Always pick-up the drop ball at its greatest circumfer-
ence, see detail (A) in the illustration number (6).
When lifting the drop ball, make sure the back wall of the
bucket remains in a vertical position, see detail (B) in
illustration no. (7). The ball drop height is reached, when
the bucket is on a level with the cab roof.
With the drop ball lifted, never tilt back the bucket
beyond the vertical position (B), otherwise the drop ball
could roll over and fall on the Shovel.
Before leaving the Shovel locate the drop ball on a safe
place. DO NOT leave the drop ball in the bucket.
192
WARNING
OPERATION

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Pc3000-6

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