USER'S AND
MAINTENANCE
MANUAL
01/31/2020
Air Compressor : D185T4F-DB
Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.P.A.
Its full or partial reproduction is forbidden under any form, on any support and by any means, without the
written authorization by ROTAIR S.P.A.
7.1 Body .................................................................................................................................................... 24
7.2 Engine ................................................................................................................................................. 24
7.3 Compression unit ................................................................................................................................ 24
7.4 Oil mist separator tank ................................................................................................ ........................ 24
7.5 Hub and splined coupling (KTR Joi nts)................................................................................................ 24
7.6 Control panel ........................................................................................................................................ 25
8 Electrical equipment of the machinery .................................................................................................... 26
8.1 Operator's panel .................................................................................................................................. 26
8.2 Operator's panel warning/indicator lights.............................................................................................. 27
8.3 Fuses .................................................................................................................................................... 30
9 Hydraulic and pneumatic systems .......................................................................................................... 31
9.1 Hydraulic lubrication system ................................................................................................................ 31
9.2 Pneumatic system ................................................................................................................................ 32
9.2-1 Automatic adjustment of the engine RPM ...................................................................................... 33
10 Recommendation for the appropriate operation of the air compressor .............................................. 34
10.1 Before starting ...................................................................................................................................... 34
10.2 Starting................................................................................................................................................. 35
10.3 During operation ................................................................................................................................... 37
10.4 Stopping the engine.............................................................................................................................. 37
10.5 After stopping the engine...................................................................................................................... 37
11 Monitoring and testing of the machine ................................................................................................... 38
11.1 Monitoring and testing of engine RPM................................................................................................. 38
11.1-1 Control system of maximum engine RPM ...................................................................................... 38
11.1-2 Control system of minimum engine RPM ....................................................................................... 38
11.2 Monitoring and controlling the maximum air pressure of the compressor .......................................... 40
11.3 Monitoring and controlling the minimum air pressure of the compressor ........................................... 41
12 Safety device ............................................................................................................................................. 42
12.1 Verification of the safety valve ............................................................................................................ 42
13 Maintenance .............................................................................................................................................. 43
13.1 Routine maintenance ........................................................................................................................... 43
13.2 Maintenance program .......................................................................................................................... 44
13.3 Torques for tightening screws and bolts .............................................................................................. 46
13.4 Maintenance ......................................................................................................................................... 47
13.4-1 Checking and cleaning air filters .................................................................................................... 47
13.4-2 Servicing the battery ....................................................................................................................... 48
13.4-3 Fuse replacement ........................................................................................................................... 49
13.4-4 Cleaning the radiator ...................................................................................................................... 50
13.4-5 Mixture of engine coolant ............................................................................................................... 50
13.4-6 Checking and cleaning oil recovery nozzle..................................................................................... 51
13.4-7 Draining the fuel tank ...................................................................................................................... 51
13.4-8 Replacing diesel fuel filter and pre-filter .......................................................................................... 52
7 Machinery components............................................................................................................................ 24
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