3-31
[4] NUMBER OF WIRES SELECTOR SWITCH
• Stop the crane operation when changing the number of wires hooked using the number of
wires selector switch.
Changing the number of wires during the crane operation can cause unexpected accidents.
• Perform the crane operation always after matching the number of wires display on the moment
limiter and the actual number of wires. Mistaking the number of wires cause serious accidents.
The wire rope has the safe load per rope determined.
Determine the number of wires according to the maximum load to
be hoisted.
The actual number of wires hooked and the number of wires
display on the moment limiter must match.
With this machine, the hook for four/two wire ropes is referred to as
the standard specifications.
The last status of the set number of wires is memorized even if the
starter switch is turned to the OFF position.
[5] BOOM UPPER LIMIT DETECTION
When the boom is raised and the boom angle reaches “about 77
degrees”, the boom raising operation stops automatically.
[6] BOOM LOWER LIMIT DETECTION
When the boom is lowered and the boom angle reaches “about 3
degrees”, the boom lowering operation stops automatically.
[7] OUTRIGGER EXTENSION DETECTION
The outrigger extension status is detected with the limit switch
mounted to each of four outriggers, lighting the appropriate LED
(blue) of the “MIN”, “MID”, or “MAX” and changing the rated total
load.
1.6.6 MOMENT LIMITER STARTING STATUS
The moment limiter checks its function for 2 seconds when the starter switch is turned to the ON position.
Meanwhile,
• The red of the working status lamp lights up.
• All the LEDs light up.
• The horn sounds momentarily.
Then, if the moment limiter and the sensors are normal upon the completion of the functional check of the
moment limiter, the red of the working status lamp goes off and green of the working status lamp lights up
indicating that the machine is ready for use.
CAUTION
If the red of the working status lamp does not go off after completing the functional check of the
moment limiter, be sure to contact us or our sales service agency.
To Next Page
Loading...
