RUTHMANN Steiger TB270 - Page 174

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.