Komatsu PC450-8 Operation & Maintenance Manual page 442

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DEMOLITION DIGGING BOOM INSTALLATION AND REMOVAL
Switch off the machine and place the supplied warning tag
onto the safety lock lever.
5. Assemble the work equipment support to the work equipment
brackets. The demolition work equipment stand is in two sec-
tions. Each section consists of three items:
Item
1
Left Support
2
Right Support
3
Support Brace
6. Insert pins (supplied with the machine) to locate the boom
brackets onto the Stand brackets. (position A, B, Action 1).
Securely fix the pins with the spring pins supplied. (position
C), Action 2.
7. Using suitable supports and handling equipment, assemble
the Support Braces (Item 3) to the Left and Right Support
(Items 1 and 2), to form the complete Stand Section, shown in
the diagram. Lift the work equipment, using boom raise cylin-
ders, so that the supports are free from the ground. Lower the
equipment so that Support A settles onto the ground; Stand B
will still be free of the ground.
Securely fix the brace pins with the spring pins provided.
8. Relieve the pressure in the hydraulic circuits by removing the
filler cap from the hydraulic oil tank and operating the controls
of the machine.
Make sure that all equipment is clean at all times when
removing hydraulic power lines. Particularly ensure that no
foreign matter enters the hydraulic circuit. When hydraulic
lines are separated, make sure that all open ends are
plugged.
7-32
WARNING
Quantity
1
1
2
WARNING
WARNING
CAUTION
HIGH REACH DEMOLITION EQUIP-
A
C
B

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