5. CONTENTS MAINTENANCE 17. Guides to maintenance .................................................................................................................... 3- 2 18. Outlines of service ............................................................................................................................ 3- 5 18.1 Handling oil, fuel, coolant, and performing oil clinic ......................................................... 3- 5 18.2 Outline of electric system ...................................................................................................... 3- 8 19.
Wear parts list ................................................................................................................................... 3- 9 20. Recommended fuel, coolant, and lubricant ................................................................................... 3-10 20.1 Use of fuel, coolant and lubricants according to ambient temperature .......................... 3-11 20.2 Recommended brands, recommended quality for products other than Komatsu genuine oil ........................................................................... 3-12 21. Standard tightening torques for bolts and nuts ..........................................................................
3-13 21.1 Introduction of necessary tools ............................................................................................. 3-13 21.2 Torque list ................................................................................................................................ 3-14 22. Periodic replacement of safety critical parts ................................................................................. 3-15 23. Maintenance schedule chart ............................................................................................................
3-17 23.1 Maintenance schedule chart .................................................................................................. 3-17 24. Service Procedure ............................................................................................................................. 3-21 24.1 Initial 250 hours service ......................................................................................................... 3-21 24.2 When required .........................................................................................................................
3-22 24.3 Check before starting .............................................................................................................. 3-45 24.4 Every 50 hours service ........................................................................................................... 3-52 24.5 Every 100 hours service ......................................................................................................... 3-53 24.6 Every 250 hours service .........................................................................................................
3-56 24.7 Every 500 hours service ......................................................................................................... 3-61 24.8 Every 1000 hours service ....................................................................................................... 3-67 24.9 Every 2000 hours service ....................................................................................................... 3-73 24.10 Every 4000 hours service ....................................................................................................... 3-83 SPECIFICATIONS 25.
Specifications ..................................................................................................................................... 4- 2 OPTIONS, ATTACHMENTS 26. Optional part and attachments ....................................................................................................... 5- 2 27. Selecting buckets and tires ............................................................................................................. 5- 3 28. Handling auto shift system .............................................................................................................
5- 4 28.1 Automatic shift system ........................................................................................................... 5- 4 28.2 Precautions when changing direction .................................................................................. 5- 5 0-10