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.
13.4-2 CHECKING THE ELECTRICAL BATTERY
Figure 13.4-2 Battery compartment
During extended periods of storage of the machine, check the battery's charge status
• To avoid complete discharge of the battery, if the machine will not be used for more than 3
months, disconnect the negative terminal of the electrical system.
• Periodically check the battery charge and recharge it every 3 months.
Cleaning the terminals
The battery terminals (poles) must be cleaned and greased periodically. The accumulation of dirt can hinder the
passage of electric current. For cleaning it is necessary to switch off the machine, disconnect the
terminals starting with the negative terminal, and clean the terminals.
Checking the clamps
Generally, the negative and positive poles of the battery are greased (eg. Pulp Vaseline or similar product)
to avoid the oxidation of metals. The paste on the clamps must be periodically replaced. In the same way,
check that the terminals are firmly connected to the battery poles, and if necessary, tighten them. In fact, it
may occur that vibrations loosen the grip of the clamps. A mobile connection can cause malfunctions and
even failures to the vehicle's electrical systems.
Checking the electrolyte (in the case of an unsealed battery)
The electrolyte must always cover the element plates. If the battery fluid is low, it may compromise its
operation. In these cases, if the level of electrolyte is below the minimum level, it is necessary to have it checked
by a qualified electric maintenance technician, and if necessary, provide the addition of distilled water to
restore the electrolyte level. If after refilling and charging the battery, the battery continues to discharge
frequently, it must be replaced.
CAUTION: Take special care when handling battery electrolyte because it is a potentially
corrosive liquid.
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