Tadano GR-700N - Adjusting Wire Rope for 5 Th Boom Section Extension

Y-6
Y-6
Assembly Adjustment (Crane Operation)
47
WY05-3911E
1.3 Adjusting wire rope for 5th boom section extension
After completing the adjustments of "1.1 Adjusting boom telescoping wire rope" and "1.2 Adjusting boom
head lower slide plate", make adjustments below.
△
5
345-804-
23500
Clear of the ground under conditions below.
 Boom length: 30.3 m; Elevating angle: 80°; Lifted load: 12.5 t
Lower the lifted load, then fully extend the boom only with the hook block (44.0 m).
Fully retract the boom, then enter the clearance of 4th boom section stopper into the record sheet.
End
NG
Tighten the adjustment nuts A for 5th boom extension (2 points) evenly on
the left and right until each of the 4th and 3rd boom sections contacts with
the stopper (full retraction) (clearance with stopper: less than 0.5 mm).
Enter the tightening length of adjustment nuts A for 5th boom extension
into the record sheet.
Lower the lifted load, then fully extend the boom only with the hook block (44.0 m).
Clear of the ground under conditions below.
 Boom length: 30.3 m; Elevating angle: 80°; Lifted load: 12.5 t
After the boom is fully retracted, check that the clearance with stopper is 0.5 mm or less.
OK