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.
Alternator warning light
This indicates alternator efficiency.
Glow plug warning light
The first two warning lights are red, and when the engine has been started, they must go off.
The glow plug warning light stays on for as long as it takes to heat the glow plugs, after which it switches itself
off automatically. At this point, it is possible to start the engine-compressor by pushing the “Start” button (Part
3 Figure 8.1-1). The starter motor is powered by the push-button, which will start the diesel engine.
WARNING: Release the button at the first sign that the diesel engine is starting. Do
not operate the starter for more than 10 seconds continuously. In case of difficult
starting cycles, repeat the starting procedure after allowing cool down intervals.
2) Wait for a few minutes, until the engine warms up. The pressure shall raise up to the max. pressure of the
machinery. If one or more warnings lights stay on, immediately stop the machinery and identify the cause
and correct it.
3) Connect the compressed air lines to the relevant tools.
4) Progressively open the air valves (Figure 10.2-1).
WARNING: DO NOT operate the machinery with the engine hood open.
Figure 10.2-1 Location of the air valves
WARNING: Do not breathe the compressed air produced by this unit; it will contain trace
amounts of oil.
Air valves
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