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8
Rectification of
malfunctions
8-2
RUTHMANN-Steiger
®
TB270
BA.GB.12-27409-05-07-FTA-jr
Lifting of boom not possible / is interrupted.
Possible cause
Remedy
Jacks of Steiger not properly
extended.
Extend jacks properly.
Lowering of boom not possible / is interrupted.
Possible cause
Remedy
LML-cut-off
Reduce load moment by e. g.
retraction of telescope,
reduction of working cage
load.
Working cage rotated too far to
the left or right.
Rotate working cage back toward the
centre position.
Chain for power track is slack.
The cable /hose drum does not
roll up the chain for power track.
Carry out for a short time a movement
so that the chain for the power track
will be tightened and be rolled off from
the cable / hose drum, e.g.
move boom upwards,
extension of telescope.
Attention
: Carry out the movement
with precaution while observing the
cable / hose drum. If the chain can af-
terwards be rolled up or off resp. with-
out problems, however the cause
must be found out. If necessary, an
existent default must be eliminated.
Delayed cage levelling.
Possible cause
Remedy
Operating temperature of hy-
draulic oil in hydrostate still not
reached (cold hydraulic oil e.g.
in winter time).
Increase oil temperature. Change the
inclination of the unmanned working
cage several times by means of the
movements „Cage up“ and „Cage
down“ using the emergency control
system.
Reduce speed, move joystick not so
far.
Содержание 27409
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