6. During operation
6.1. OLP (Overload protection)
OLP Crane
The OLP function is a safety function in SPACE that
prevents overloading of the crane.
On the boom system: With 90% of maximum permitted
load, a prewarning is given. The cylinder pressure LED's
flash red.
When 100% of the maximum permitted pressure is
reached, the OLP cuts in and stops all movements that
increase the moment. The cylinder pressure LED's will light
continuously.
OLP Release
In certain OLP situations, the first and second booms can be locked. It is then possible to release
the OLP for approximately 5 seconds.
To release the OLP
Press the "OLP release" button , while moving one lever.
There is a waiting time before the release operation can be activated again. The time increase in
three steps: 30, 60 and maximum 90 seconds (the time starts to count down as you move the
lever)
During this period it is possible to operate an appropriate crane function so as to correct the
overload situation. Only one unallowed function at a time can be operated. Extension out cannot be
operated.
The cylinder pressure LED’s and the lamp above the OLP release button flash red.
OLP End of stroke operation
(automatic OLP disconnect)
If a boom cylinder reaches its end position while lifting, the cylinder may reach the OLP limit and
SPACE will interpret this as an overload.
In this case, SPACE will calculate the pressure increasement over time and automatically release
OLP.
NOTE
Do not operate heavy loads with the extensions fully retracted. In an OLP situation,
it is an advantage to be able to retract the extensions.
During operation
HIAB 410K PRO
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