Folding
1 Lift/fold connection
2 Lower/unfold connection
3 Lock valve, single acting
4 Counterbalancing valve, single acting
5 Hydraulic cylinder for folding
6 Lock valve, double-acting
7 Hydraulic cylinder lift/lower packer
1
3
4
4
5
5
6
7
2
3
2
1
1
2
3
C2
C1
V1
V2
C2
V2
V1
C1
26
