
8 Maintenance........................................................................................................................................ 75
8.1 Preliminary remarks and safety notes...................................................................................... 76
8.2 Preparations/concluding work................................................................................................... 77
8.2.1 Opening the protection hood...................................................................................................... 77
8.3 Fuels and lubricants................................................................................................................... 78
8.3.1 Engine oil................................................................................................................................... 78
8.3.2 Fuel............................................................................................................................................ 78
8.3.3 Mineral oil based hydraulic oil.................................................................................................... 79
8.3.4 Lubrication grease...................................................................................................................... 79
8.4 List of fuels and lubricants........................................................................................................ 80
8.5 Running-in instructions.............................................................................................................. 81
8.5.1 General...................................................................................................................................... 81
8.5.2 After 25 operating hours............................................................................................................. 81
8.6 Maintenance Table...................................................................................................................... 82
8.7 Weekly.......................................................................................................................................... 83
8.7.1 Checking, cleaning the air filter.................................................................................................. 83
8.7.2 Checking, cleaning the water separator..................................................................................... 84
8.8 Semi-annually.............................................................................................................................. 86
8.8.1 Battery service........................................................................................................................... 86
8.8.2 Servicing the V-belt.................................................................................................................... 87
8.8.3 Servicing the toothed belt........................................................................................................... 87
8.8.4 Greasing the gears..................................................................................................................... 88
8.9 Annually....................................................................................................................................... 90
8.9.1 Checking, adjusting the valve clearance.................................................................................... 90
8.9.2 Changing engine oil and oil filter element.................................................................................. 92
8.9.3 Replacing the fuel filter............................................................................................................... 93
8.9.4 Replacing the V-belt................................................................................................................... 95
8.9.5 Replacing the toothed belt......................................................................................................... 95
8.9.6 Replacing the air filter................................................................................................................ 97
8.9.7 Cleaning the crank handle guide................................................................................................ 97
8.9.8 Checking the hydraulic lines...................................................................................................... 98
8.10 Every 2 years............................................................................................................................. 99
8.10.1 Changing hydraulic oil and hydraulic oil filter........................................................................... 99
8.11 As required.............................................................................................................................. 101
8.11.1 Cleaning the water spraying system...................................................................................... 101
8.11.2 Adjusting the scrapers............................................................................................................ 102
8.11.3 Cleaning the machine............................................................................................................. 103
8.11.4 Cleaning the cooling fins and the cooling air intake openings................................................ 103
8.11.5 Bleeding the fuel system........................................................................................................ 104
8.11.6 Measures if there is a risk of frost.......................................................................................... 105
8.11.7 Measures prior to extended shut-down period....................................................................... 105
9 Troubleshooting................................................................................................................................ 109
9.1 Preliminary remarks.................................................................................................................. 110
9.2 Emergency starting with crank handle.................................................................................... 111
9.3 Starting the engine with jump leads........................................................................................ 114
9.4 Engine malfunctions................................................................................................................. 115
Table of contents
DTR75
5