RUTHMANN 27409, Operating And Maintenance Instructions Manual

Page: 174 / 261

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.