Kramer 348

BA 348-01 * 2.0 * 34801b510.fm 5-15
Maintenance 5
Important information on the use of biodegradable oil
• Use only the biodegradable hydraulic fluids that have been tested and approved by
the manufacturer –seeFluids and lubricants on page 5-39
• Always contact the manufacturer for the use of other products which have not been
recommended. In addition, ask the oil supplier for a written declaration of guarantee.
This guarantee is applicable to damage occurring on the hydraulic components that
can be proved to be due to the hydraulic fluid
• Use only biodegradable oil of the same type for adding oil. In order to avoid misunder-
standings, a label providing clear information is located on the hydraulic oil reservoir
(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, ensure that the remaining amount of initial hydraulic fluid in the
hydraulic system does not exceed 8 % when changing biodegradable oil
(manufacturer indications)
• Do not add 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 reservoir drained by an authorized
service centre every 500 operating 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 installed 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 performed by
an authorized service centre or by your dealer