Komatsu Galeo PC800-8 Shop Manual page 1076

SEN01058-00
Removal and installation of work
equipment
Loading shovel
Removal
k
Retract the boom cylinder fully, extend the arm
cylinder, set the bottom of the bucket horizon-
tal, then lower the work equipment completely
to the ground and stop the engine.
Operate the control levers several times to
release the remaining pressure in the
hydraulic piping. Then loosen the oil filler
cap slowly to release the pressure inside
the hydraulic tank.
a Release the remaining pressure in the circuit.
For details, see Testing and adjusting, "Releas-
ing pressure in hydraulic circuit".
1. Disconnect boom cylinder from boom.
For details, see "Removal and installation of
boom cylinder assembly".
2. Disconnect bottom dump cylinder hose (1), bucket
cylinder hoses (2), and arm cylinder hoses (3).
a When the hoses are disconnected, oil may
spurt out, so loosen the hose flanges
slowly before disconnecting.
k
To prevent oil from spurting out when
the engine is started, fit blind plugs
securely in the piping at the chassis end.
26
3. Disconnect head lamp wiring.
1
4. Set bottom of bucket horizontal, lower work
equipment completely to ground, then sling
boom assembly (4).
5. Using forcing screws (Thread dia. = 16 mm,
Pitch = 2.0 mm), pull out left and right boom
foot pins (5), then disconnect work equipment
assembly.
a Check the number and thickness of the
shims, and keep in a safe place.
6. Start engine, drive machine slowly in reverse,
and operate crane to lower boom foot to ground.
k
Before driving the machine in reverse,
check that the boom foot is completely
separated from the machine body.
4
Work equipment assembly: 18,700 kg
50 Disassembly and assembly
PC800, 850-8
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