User Mode
Cha pte r B
Cha pte r B
6.1.2 Anti-two-block stop In the case of two-blocking, the operation in the hook block hoisting up direction is stopped. However, while the jib is being set, anti-two-block stop is not performed. Code at stop: W0024 “Stop due to overwinding (two-blocking)” Cancel: Two-blocking cancel (Di5: ON) Stop operation: (×: Stop operation) Main winch
Aux. winch
Boom telescoping
Boom elevation
Jib telescoping
Up
Up
Ext.
Rse.
Lwr.
Ext.
×
×
Down
×
Down
×
Ret.
×
Ret.
Jib tilt Rse.
Jib mounting
Slewing
Lwr.
Right
Left
Ext.
Stw.
×
6.1.3 Backward stability stop When the backward stability is lost, the operations that reduce the backward stability are stopped. Stop condition: During on-rubber operation, the boom angle becomes as follows: Model
Boom stop angle
Boom length
At suspension lock
At suspension free
9.80 m
73° or more (over-front area) 60° or more (over-side area)
16.64 m
73° or more (over-front area) 73° or more (over-side area)
GR-250N-3
9.37 to 23.46 m
Boom angle of 80° or more
GR-160N-3
–
GR-130N-1
–
GR-700N-1
Boom angle of 55° or more
Without stop
Code at stop: W0025 “Stopped due to backward stability” Cancel: None (Not allowed) Stop operation: (×: Stop operation) M winch Up
Down
A winch Up
Down
Boom telescoping
Boom elevation
Jib telescoping
Ext.
Ret.
Rse.
Ext.
×
×
Lwr.
B - 49
Ret.
Jib tilt Rse.
W301-0481E
Lwr.
Slewing Right
Left
Jib mounting Ext.
Stw.
