Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 54 3 112 xxx en Operating Manual GMK6300L
xx.xx.xxxx
Required checks
When the
locked position can no longer be displayed, always conduct the fol-
lowing checks before unlocking:
• Carefully retract and extend the telescoping cylinder or telescopic section.
In the
Locked position, the length shown on the displays (1) should vary only
slightly, i.e. by the play of the locking pins.
Retracting
The steps for retracting are the same when an error occurs on the proximity
switch as for an error on the length indicator.
– When the display (C) fails
• Calculate the telescoping cylinder length for the locking point;
à Locking points for the telescoping cylinder, p. 14 - 55, à Locking points
for the telescopic sections
, p. 14 - 55.
• Move the telescoping cylinder to the required length – display (1).
Terminating
emergency
programme
The emergency programme is terminated:
– if the displayed time has expired, or
– when the ignition is turned off.
H
The current telescoping status does not correspond to the telescoping sta-
tus last saved by ECOS if the
Telescoping emergency programme was open.
You must enter the current telescoping after terminating the emergency
programme;
à Entering the current telescoping, p. 14 - 57.
S
Risk of damage if the length specifications are not observed!
Extend the telescoping cylinder (without telescopic section) only to the
specified length.
This prevents the piston rod from becoming damaged if the telescoping
cylinder slides out of the telescopic section.
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