Sinoboom AB16EJ Plus - Page 77

HYDRAULIC SYSTEM
AB16EJ Plus Maintenance Manual 65
© Mar. 2023
Luffing Control Valve (PN.202040003366)
Fig 8 Luffing control valve (PN.202040003366)
Table 7-8 Luffing control valve (PN.202040003366)
No. Name
Torque
Function
1 Solenoid valve
25.8～28.5Nm
(19～21ft-lb)
Control the speed of lowering caused by dead
weight
2
Damper 5Nm (4ft-lb)
\
3
Counterbalance
valve
70～75Nm (52～55ft-lb) Keep the load balanced
4
Damper 5Nm (4ft-lb)
\
1
2
34