9.3 Compressor faults and alarms ......................................................................................... 97
9.3.1 Working pressure too high .................................................................................. 97
9.3.2 Working pressure too low ................................................................................... 97
9.3.3 Safety relief valve blowing off ............................................................................. 98
9.3.4 Machine overheating .......................................................................................... 98
9.3.5 Too much oil residue in the compressed air ....................................................... 99
9.3.6 Oil flows from the compressor air filter after shutdown ....................................... 99
9.3.7 High moisture content in the compressed air ..................................................... 100
9.4 Generator faults and alarms ............................................................................................. 100
9.4.1 No voltage or too low a voltage from the generator ............................................ 100
9.4.2 Generator voltage too high ................................................................................. 100
10 Maintenance
10.1 Ensuring safety ................................................................................................................ 102
10.2 Maintenance schedules ................................................................................................... 103
10.2.1 Logging maintenance work ................................................................................. 103
10.2.2 Maintenance tasks after commissioning ............................................................. 103
10.2.3 Regular maintenance tasks ................................................................................ 104
10.3 Engine maintenance ........................................................................................................ 108
10.3.1 Water cooler maintenance .................................................................................. 109
10.3.2 Engine air filter maintenance .............................................................................. 113
10.3.3 Fuel system maintenance ................................................................................... 116
10.3.4 Changing the engine oil ...................................................................................... 120
10.3.5 Changing the engine oil filter .............................................................................. 123
10.3.6 Drive belt maintenance ....................................................................................... 124
10.3.7 Battery maintenance ........................................................................................... 126
10.3.8 Checking the fastening of the fuel tank .............................................................. 129
10.4 Compressor Maintenance ................................................................................................ 129
10.4.1 Checking cooling oil level ................................................................................... 129
10.4.2 Filling or topping off the cooling oil ..................................................................... 130
10.4.3 Changing the cooling oil ..................................................................................... 131
10.4.4 Replace the compressor oil filter ........................................................................ 133
10.4.5 Oil separator tank dirt trap maintenance ............................................................. 135
10.4.6 Changing the oil separator cartridge ................................................................... 136
10.4.7 Compressor air filter maintenance ...................................................................... 139
10.4.8 Checking safety relief valves .............................................................................. 141
10.5 Cleaning the cooler .......................................................................................................... 141
10.5.1 Cleaning the compressor cooler and engine radiator ......................................... 142
10.5.2 Cleaning the compressed air aftercooler ............................................................ 143
10.6 Maintenance of rubber sealing strips ............................................................................... 144
10.7 Chassis maintenance ....................................................................................................... 144
10.7.1 Wheel checks ..................................................................................................... 144
10.7.2 Checking wheel bearings .................................................................................... 145
10.7.3 Towbar maintenance .......................................................................................... 150
10.7.4 Brake system maintenance ................................................................................ 152
10.8 Maintenance for Optional Items ....................................................................................... 155
10.8.1 Tool lubricator maintenance ............................................................................... 156
10.8.2 Compressed air water separator maintenance ................................................... 157
10.8.3 Frost protector maintenance ............................................................................... 158
10.8.4 Engine air intake shut-off valve maintenance ..................................................... 159
10.8.5 Draining liquid accumulation within the machine ................................................ 161
10.8.6 Generator drive belt maintenance ...................................................................... 162
10.9 Documenting maintenance and service work .................................................................. 164
Contents
iv
Operator Manual Screw Compressor
M27
No.: 9_9548 05 USE
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