9
5.2.3 Loosen the Lower Linkage nut and take off the Upper Linkage nut. Turn the Manual
Release towards Open Status to pull out the Adjusting Insert. Turn the Manual Release towards
Close Status, and stop when the boom is between 30° to 60°. If the boom moves towards Open Status,
the Spring Nut should be loosened or reduce the number of springs. If the boom moves toward
Close Status, the Spring Nut should be tightened or increase the number of springs. (Fig. 10)
Tighten the Upper and Lower Linkage nuts after the adjustment.
Fig.10
Spring Nut
Manual Release Handle
Adjusting Insert
Upper Linkage nut
Linkage
Lower Linkage nut
