Komatsu — Contents

Contents FOREWORD Table to enter serial No. and distributor Adjusting work equipment posture................................................................................................................. 3-82 Adjusting boom kickout ............................................................................................................................. 3-82 Adjusting bucket positioner....................................................................................................................... 3-83 Bucket level indicator ................................................................................................................................

3-83 Parking machine ............................................................................................................................................ 3-84 Check after stopping engine .......................................................................................................................... 3-86 Checks after completion of operation............................................................................................................. 3-86 Locking...........................................................................................................................................................

3-86 Handling the tires ........................................................................................................................................... 3-87 Precautions when handling tires ............................................................................................................... 3-87 Tire pressure............................................................................................................................................. 3-87 Precautions for using load and car method ..............................................................................................

3-88 Transportation ................................................................................................................................................... 3-89 Transportation procedure............................................................................................................................... 3-89 Loading, unloading work with trailers............................................................................................................. 3-89 Loading .....................................................................................................................................................

3-89 Securing machine ..................................................................................................................................... 3-90 Unloading.................................................................................................................................................. 3-90 Lifting machine............................................................................................................................................... 3-91 Location of lifting position mark.................................................................................................................

3-92 Weight table.............................................................................................................................................. 3-92 Lifting procedure ....................................................................................................................................... 3-93 Cold weather operation .................................................................................................................................... 3-94 Precautions for low temperature ....................................................................................................................

3-94 Fuel and lubricants.................................................................................................................................... 3-94 Coolant...................................................................................................................................................... 3-94 Battery....................................................................................................................................................... 3-95 Precautions after completion of work.............................................................................................................

3-96 After cold weather .......................................................................................................................................... 3-96 Warming-up operation for steering hydraulic circuit in cold weather.............................................................. 3-96 Long-term storage ............................................................................................................................................ 3-97 Before storage................................................................................................................................................

3-97 During storage................................................................................................................................................ 3-97 After storage................................................................................................................................................... 3-97 Troubleshooting ................................................................................................................................................ 3-98 When machine runs out of fuel ......................................................................................................................

3-98 Towing the machine....................................................................................................................................... 3-98 When engine can be used ........................................................................................................................ 3-99 When engine cannot be used ................................................................................................................... 3-99 If battery is discharged.................................................................................................................................

3-100 Removal and installation of battery......................................................................................................... 3-100 Precautions for charging battery ............................................................................................................. 3-101 Starting engine with booster cable.......................................................................................................... 3-101 Other trouble ................................................................................................................................................

3-103 Electrical system ..................................................................................................................................... 3-103 Chassis ................................................................................................................................................... 3-104 Engine..................................................................................................................................................... 3-106 MAINTENANCE Guides to maintenance .......................................................................................................................................

4-2 Outlines of service .............................................................................................................................................. 4-4 Handling oil, fuel, coolant and performing oil clinic .......................................................................................... 4-4 Oil................................................................................................................................................................ 4-4 Fuel.............................................................................................................................................................

4-4 Coolant........................................................................................................................................................ 4-4 1-12