Komatsu PC450-8 Operation & Maintenance Manual page 380

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MACHINE READY FOR ATTACHMENT
7. Loosen slowly oil filler cap (F) on top of the hydraulic tank
to eliminate the internal pressure in the hydraulic circuit.
8. After confirming low oil temperature, remove the plug from
the outlet and inlet port respectively.
Take care that no dust, mud etc. adheres to the hose
mouthpiece portions.
If O-ring is damaged, replace it with a new one.
9. Connect the hose at the attachment side.
When doing this, check the direction of flow of the oil and
be careful not to make any mistake.
10. Turn the rotor on the stop valve installed to the piping for
the inlet port and outlet port on the side face of the arm to
the FREE position (F).
11. After installing the attachment, check the oil level in the
hydraulic tank.
6-20
ATTACHMENTS ANDD OPTIONS

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Pc450lc-8

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