Komatsu — 5. CONTENTS

5. CONTENTS MAINTENANCE 17. Guides to maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 2 18. Outlines of service ............................................................................................................................ 3- 4 18.1 Outline of oil, fuel, coolant .....................................................................................................

3- 4 18.2 Relating to electric system ..................................................................................................... 3- 6 19. Wear parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........... 3- 7 20. Use of fuel, coolant and lubricants according to ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 8 21. Standard tightening torques for bolts and nuts ...........................................................................

3-12 21.1 introduction of necessary tools.. ............................................................................................ 3-12 21.2 Torque list ................................................................................................................................. 3-13 22. Periodic replacement of safety critical parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 23. Maintenance schedule chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Service Procedure .............................................................................................................................. 3-19 24. 24.1 Initial 250 hours service .......................................................................................................... 3-19 24.2 When required ......................................................................................................................... 3-20 24.3 Check before startino ..............................................................................................................

3-34 24.4 Every 250 hours seiice .......................................................................................................... 3-38 24.5 Every 500 hours service.. ........................................................................................................ 3-45 24.6 Every 1000 hours service ........................................................................................................ 3-49 24.7 Every 2000 hours service ........................................................................................................ 3-57 24.8 Every 4000 hours service ........................................................................................................

3-59 SPECIFICATIONS 25. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............. 4- 2 OPTIONS, ATTACHMENTS 26. General precautions ........................................................................................................................... 5- 2 26.1 Precautions related to safety.. ................................................................................................ 5- 2 27.

Using seat belt .................................................................................................................................. 5- 3 27.1 Fasten the belt and remove it in the following manner.. ................................................... 5- 3 27.2 Adjust the belt length in the following manner .................................................................. 5- 4 28.1 Opening and closing lockable cap.. ....................................................................................... 5- 5 Handling cap with lock ...................................................................................................................... 5- 5 o-7