Manitowoc Grove GMK 5250L Operating Instructions Manual page 788

Rigging work
11.9 Rigging/unrigging the counterweight
G
11 - 80
The following counterweight combinations can be combined on the
counterweight platform.
Risk of accident due to an incorrect counterweight mass!
Only combine the counterweights in such a manner that the counterweight
mass corresponds to the specifications in this section and in the lifting
capacity table . Other combinations are not permitted.
7 t (15,432 lbs)
– 7 t base plate
16.5 t (36,376 lbs)
– 7 t base plate
– Two 4.75 t sections
3 302 633 en Operating Instructions GMK5250L