MAINTENANCE
GTTZ10EJ Maintenance Manual 5-33 © Mar. 2022
Figure 5-39 Jib control valve (PN.202040003002)
Table 5-12
No. Name Function Torque
1 Solenoid valve To control the lowering direction
of jib
25.8～28.5Nm (19～21ft-lb)
2 Check valve To keep the fluid flowing in one
direction
40～45Nm (29.5～33.2ft-lb)
3 Damper (standard
φ1.2)
To control the lowering speed of
jib
5Nm (3.7ft-lb)
4 Damper \ 5Nm (3.7ft-lb)
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