Komatsu PC78US-6 Operation & Maintenance Manual page 271

ATTACHMENTS AND OPTIONS
METHOD FOR REMOVING AND INSTALLING EXTRA
COUNTERWEIGHT
For lifting up this machine, use a wire rope with sufficient strength to withstand the machine weight.
Do not attempt to lift up the machine in a posture other than explained below. Otherwise there is the danger that the lifted
machine may lose a balance in the air.
Lift up the machine, keeping it level.
REMARK
METHOD FOR REMOVING AND INSTALLING EXTRA COUNTERWEIGHT
· ·
6 - 11