
Operator’s Manual for Crawler Crane
Crane
Operation
4-30
4.4.4.1
Moment percent between 100%-110%
If the moment percent shown on the load moment limiter is between 100% and 110%, it means
that the actual load of crane reaches 100% - 110% of the rated load. At this time, crane
movements “spool up H1, H2 and H3”, “derrick boom up and down” are cut off, the tricolor light
sends out yellow and red warning and the buzzer sounds continuously.
CAUTION
Bypass those limited movements in accordance with the following methods:
(1) Turn bypass switch (in the electrical control box of slewing table) clockwise until
the icon
appears on the load moment limiter. At this time, the limited
movement “derrick boom up” is bypassed. However, the tricolor light sends out red
warning and the buzzer sounds continuously.
(2) Press “Setup” switch (No. 2 in the figure 4-2) on the operating console, the icon
will appear on the load moment limiter if rated load is lifted. At this time, rotate
derricking bypass switch (No. 5 in the figure 4-2) clockwise, the limited movement
“derrick boom up” is bypassed. However, derricking speed is reduced, the tricolor
light sends out yellow and red warning, and the buzzer sounds continuously.
Press “Setup” switch (No. 2 in the figure 4-2) on the operating console, the icons
and
will appear on the load moment limiter if non-rated load is lifted. At
this time, the limited movement “derrick boom up” is bypassed. However,
derricking speed is reduced, the tricolor light sends out yellow warning, and the
buzzer sounds continuously.
-G2
-G1
Figure 4-31
Position of electrical control box of slewing table
Electrical control box of slewing table
For reference only.
Operators manual should be consulted and adhered to.
Summary of Contents for ZCC1100
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