Komatsu PC290LC-6K Operation & Maintenance Manual page 12

5. CONTENTS
OPTIONS AND ATTACHMENTS
26 GENERAL PRECAUTIONS ............................................................................................................... 5-2
26.1 General precautions related to safety ........................................................................................ 5-2
26.2 Precautions when installing attachments ................................................................................... 5-3
27. HANDLING BUCKET WITH HOOK ................................................................................................... 5-4
27.1 Checking for damage to bucket with hook ................................................................................. 5-4
27.2 Prohibited operations ................................................................................................................. 5-4
27.3 Precautions during operation ..................................................................................................... 5-4
28 MACHINE READY FOR ATTACHMENTS ......................................................................................... 5-5
28.1 Explanation of components ........................................................................................................ 5-5
28.2 Hydraulic circuit .......................................................................................................................... 5-7
28.3 Attachment mounting / dismounting procedure .......................................................................... 5-9
28.4 Operation .................................................................................................................................. 5-11
28.5 Long-term storage .................................................................................................................... 5-12
28.6 Specifications ........................................................................................................................... 5-12
28.7 First attachment with clam-shell option ................................................................................. 5-12-1
28.8 First and second attachment ................................................................................................. 5-12-2
29. INTRODUCTION OF ATTACHMENTS ............................................................................................ 5-13
29.1 Specification, use ..................................................................................................................... 5-13
29.2 Attachment installing combination table ................................................................................... 5-14
29.3 Selection of track shoes ........................................................................................................... 5-15
29.4 Selection of bucket teeth .......................................................................................................... 5-16
29.5 Handling trapezoidal bucket ..................................................................................................... 5-17
29.6 Using the extension arm .......................................................................................................... 5-18
29.7 Handling the clamshell bucket ................................................................................................. 5-19
30. EXTENDING MACHINE SERVICE LIFT ......................................................................................... 5-20
30.1 Hydraulic breaker ..................................................................................................................... 5-20
30.2 Power ripper ............................................................................................................................. 5-23
30.3 Fork grab .................................................................................................................................. 5-24
30.4 Grapple bucket ......................................................................................................................... 5-25
30.5 Scrap grapple ........................................................................................................................... 5-26
30.6 Crusher & cutter ....................................................................................................................... 5-27
30.7 Hydraulic pile driver ................................................................................................................. 5-28
30.8 Hydraulic excavator with multi-purpose crane ......................................................................... 5-29
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