RUTHMANN 27409, Operating And Maintenance Instructions Manual

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9 Maintenance
BA.GB.12-27409-05-07-FTA-jr
RUTHMANN-Steiger
®
TB270
9-51
9.4.5.16 Hydraulic hose lines

Check elongation of hydraulic hoses, e.g. of the power track inside the
boom, and repair if necessary.

Hydraulic hose lines are naturally exposed to an ageing process, e.g.
light, temperatures, movements and impulse frequencies have an influ-
ence on the working life of hydraulic hoses. We recommend, according
to state of the art, to exchange the hydraulic hoses after 6 years.
Only original Ruthmann spare hydraulic hoses may be used. The hoses
are marked correspondingly by means of a stamping on the instrument
panel or by a sticking label in the area of the instrument panel.
Marking by means of
Stamping Sticked label
1. Instrument panel
2. Hose
3. Marking of manufacturer
4. Year of construction
5. Month of construction
6. max. dynamic operating pressure (in bar)
Danger!
There is a danger of accidents caused by hydraulic hos-
es connected incorrectly! Hydraulic connections must
not ever be interchanged. It must be assured that any
hydraulic hoses changed or taken off are reconnected to
their respective connections for them.

To avoid interchanging the connections, the hydraulic hoses with which
the hose ends are not visible at the same time are labelled correspond-
ingly. Their respective connection points have the same labelling as the