Operation Of The Rated Capacity Limiter - Manitowoc Grove GMK4100L-1 Operating Manual

11.4
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Operating manual
GMK4100L-1

Operation of the rated capacity limiter

The rated capacity limiter is abbreviated to RCL (Rated-Capacity-Limiter) in
these operating instructions.
If the truck crane's current rigging mode is registered properly, the RCL will
prevent the permissible lifting capacity from being exceeded and the truck
crane from being overloaded.
Risk of accidents due to an incorrectly set RCL
Ensure that the current rigging mode is correctly entered Before starting
crane operation. An incorrect entry will give you a false sense of security.
This may result in the truck crane overloading and causing an accident.
The current rigging mode is registered via
– Measurements,
– acquired via manual entry.
Acquired via measurements
– Main boom length
– Main boom angle
– Current load
– Lattice extension inclination
– Outrigger span
1)
Lattice extension – luffable
2)
Lattice extension – inclinable
During the operation of the crane, a visual and acoustic early warning is
issued before the load limit is reached and then the functions are shut down
that would lead into the overload range.
Risk of accidents due to overridden or faulty RCL
The RCL must never be overridden.
It is prohibited to work if the RCL is switched off, overridden, out of service
or faulty.
Danger of overturning in two-hook operation
The rated capacity limiter only ensures safety for single hook operation.
Two-hook operation is not permitted.
11.4 Operation of the rated capacity limiter
Acquired via manual entry
– Counterweight
– Length of lattice extension
– Angle of the lattice extension
1)
– Reeving
3 302 690 en
Crane operation
2)
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