Komatsu PC450-8 Operation & Maintenance Manual page 379

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ATTACHMENTS ANDD OPTIONS
Attachment Installation
1. Remove the bucket.
For bucket dismounting procedure, see "BUCKET REPLACEMENT AND INVERSION (3-164)".
2. Place the attachment in a horizontal position, then install to
the arm with pin (A) and then pin (B).
3. Lower the attachment to the ground and stop the engine.
4. Turn the starting switch to the ON position (B), then set the
lock lever to the FREE position (F).
5. After carrying out Step 4, operate each work equipment
control lever and attachment control pedal fully to the front,
rear, left, and right 2 or 3 times within 15 seconds to
release the internal pressure in the hydraulic circuit.
6. Set the lock lever to LOCK position (L).
MACHINE READY FOR ATTACHMENT
6
6-19

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Pc450lc-8

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