Komatsu PC450-8 Operation & Maintenance Manual page 445

HIGH REACH DEMOLITION EQUIPMENT 27M
18. Using suitable lifting and support equipment, remove the
additional demolition counterweight from the main demolition
counterweight. Eyebolts are provided with the machine for
this purpose.
Refitting the High reach Demolition Equipment is achieved by following steps above in the reverse order (start with
step 17 and finish with step 1.
Whenever installing work equipment, always complete the installation by purging the hydraulic circuits of
air. Follow the steps in PURGING AIR PROCEDURES (7-41).
FITTING DEMOLITION DIGGING EQUIPMENT.
REMARK
It is assumed that the demolition digging equipment is complete
and resting on the ground, with the boom supported by the
Komatsu Digging Equipment Stand (available from your dealer).
Make sure that all personnel are a safe distance from the dig-
ging equipment while the machine is moving.
1. With the high reach equipment removed from boom 1, and
demolition boom 1 attached to the base machine, manoeuvre
the machine slowly towards the demolition digging boom.
2. Before arriving at the digging equipment, lower the demolition
boom 1 so that the upper pin hook is able to accept the upper
pin of the exposed end of the demolition dig boom.
It is important that the machine is aligned correctly with the
demolition digging equipment. Otherwise, the pins will be
very difficult to fit or the equipment may fall.
REMARK
The upper pin used to connect the demolition digging boom with
the demolition boom 1 should be retained in the digging boom.
Make sure that the pin is correctly centralized and greased to
accept the demolition first boom.
WARNING
CAUTION
DEMOLITION DIGGING BOOM INSTALLATION
CAUTION
7
SLOWLY
7-35