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Optional Equipment
Safety, Operation and Maintenance Manual - Aug 2012
8-28
SY115C9/135C/155H Crawler Hydraulic Excavator
6. Release the operation button of quick
coupler in order to enable the quick cou-
pler to grip the bucket's support pin before
conducting other operations.
7. Insert the safety pin after installation.
CZ335-1105036
Fig. 8-43
8.7.2 Operating precautions
CZ335-1105037
CZ335-1105038
1. After installation of the quick coupler, the
bucket and other optional equipment will
make the swing diameter longer during the
operation. In this case, they could possibly
impact the cab or boom of your excavator.
So be careful with the operation. After the
quick coupler has been installed, retract
the bucket to its position (the bucket
cylinder is fully extended) before retracting
the arm when carrying out retracting the
operation. To avoid damaging the boom,
never retract the arm to its position (the
arm cylinder is fully extended) before
operating the bucket.
2. Overloaded preparation may impair your
machine and its optional equipment, thus
reducing their service life.
Fig. 8-44
Fig. 8-45