Palfinger PK9001-EH, Руководство оператора, Страница: 72 / 184

Crane control systems
66
Steep position monitoring
Danger!
At a boom position higher than 60°
x abrupt crane movements
x
overstretching of outer boom or fly-jib
may lead to an excessive side or rear loading of the boom system.
Consequently the load may fall down. This creates an acute risk of
fatality for the operator and others.
When working above 60°, pay particular attention to the stated load
limits.
Function:
When the outer boom or fly jib reaches an angle of
60° Yellow light flashes on the crane.
70° Crane stops, overload signal sounds. The crane functions
x
Lift main boom
x Lift outer boom
x
2. Lift fly jib
are blocked. All other crane functions are enabled.
STOP
Moving in steep position:
After checking the permissible load capacity for the range above 70° (steep position), it
is possible to move to steeper positions by pressing the OLP button (short beeper
sounds). The light continues flashing (
refer also to "Crane working position " chapter
8)
x Move the crane smoothly when in steep position.
x Don’t overstretch the outer boom or fly-jib.
x
Comply with the load capacities and/or ranges.
When outer boom and fly-jib are below 60° again, the light stops flashing.