BA 35101/02/ 03 EN – Edition 1.0 * 35101_02_03b510.fm 5-17
Maintenance
Important information for the use of biodegradable oil
• Use only the biodegradable hydraulic fluids which have been tested and approved by
Kramer-Werke GmbH –seeFluids and lubricants on page 5-43. Always contact
Kramer-Werke GmbH for the use of other products which have not been recom-
mended. In addition, ask the oil supplier for a written declaration of guarantee. This
guarantee is applicable to damage occurring on the hydraulic components, which can
be proved to be due to the hydraulic fluid
• Use only biodegradable oil of the same type for filling up. In order to avoid misunder-
standings, a label providing clear information is located on the hydraulic oil tank (next to
the filler inlet) regarding the type of oil currently used! Replace missing labels! The joint
use of two different biodegradable oils can affect the quality of one of the oil types.
Therefore, make sure the remaining amount of initial hydraulic fluid in the hydraulic
system does not exceed 8 % when changing biodegradable oil (manufacturer indica-
tions)
• Do not fill up with mineral oil – the content of mineral oil should not exceed 2 % in order
to avoid foaming problems and to ensure biological degradability
• When running the machine with biodegradable oil, the same oil and filter replacement
intervals are valid as for mineral oil – see maintenance plans in the appendix
• Have the condensation water in the hydraulic oil tank drained by an authorised
workshop every 500 service hours, in any case before the cold season. The water
content must not exceed 0.1 % by weight
• The instructions in this Operator's Manual concerning environmental protection are also
valid for the use of biodegradable oil
• If additional hydraulic attachments are mounted or operated, use the same type of
biodegradable oil for these attachments to avoid mixtures in the hydraulic system
• Subsequent change from mineral oil to biodegradable oil must be carried out
by an authorised workshop or by your dealer
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