Malfunctions during crane operation
14.5 Emergency operations and programs
14 - 38 3 302 819 en Operating manual
GMK3060
13.12.2018
Extending and locking the telescoping cylinder
You may not select Lock while the telescoping cylinder is retracting or extending.
Under no circumstances should you select and confirm the symbol (1).
• Slowly move the telescoping cylinder into the next extended telescopic section.
At the locking point
–The display (3) shows the length for the current
locking point;
à p. 14 - 39.
• Select and confirm the symbol (1).
The telescoping cylinder is locked – display
symbol (4), locking pin (2) green.
• You can now retract this telescopic section;
à p. 14 - 36.
S
Risk of damage to the main boom!
If you select Lock while the telescoping cylinder is moving, the locking pins on
the telescopic section are slid out immediately and they can damage or tear the
electrical or hydraulic components in the main boom.
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