Maeda D3001, Operation Manual, Page: 194 / 294

Section 4 – 850 kg SEARCHER HOOK MOMENT LIMITER DISPLAY Mini-Crawler Crane M A E D A
4-130 3/2019 MC305C-3
Fall Mode Selector Switch and Fall
Mode Display LED (Blue)
DANGER! When using an 850 kg searcher
hook, the number of wire falls, the option
mode, and the searcher hook position must
be set as "850 kg searcher hook mode". Do
not use the 850 kg searcher hook except
when it is in 850 kg searcher hook mode.
Serious accidents such as machine damage
may result because the moment limiter will
not operate correctly.
Alter the number of wire falls and the option
mode using the number of wire falls/option
selector switch.
• Set the number of wire falls and the option
mode for the moment limiter to 850 kg
searcher hook mode (
all blinking ) using the
number of wire falls/option selector switch (24)
on the display panel.
Holding down the switch for at least 2 seconds
switches the number of wire falls and the
option mode. And subsequently holding down
the switch for at least 2 seconds cycles
through the LED display for the number of wire
falls in the sequence "×4 → 300 kg searcher
hook mode (all lit) → 850 kg searcher hook
mode (
all blinking ) → ×1 → ×2 → ×4…".
Fig. 4-376
NOTICE: When changing the setting, right after
doing so, release your hand from the switch, and
then press the switch again.
Cancel Switch
DANGER! Do not use 850 kg searcher hook if
actual searcher hook position and display of
boom length window do not match. Without
setting moment limiter to the actual searcher
hook offset position, moment limiter may not
work properly and thus may result in crane
damage and machine trip that may result in
serious accidents.
Use this switch and the fall mode selector switch
to set searcher hook offset position shown in the
boom length window.
Use the setting cancel switch and the number of
wire falls/option selector switch to alter the mode
display in the boom length display.
• In 850 kg searcher hook mode, hold down both
the number of wire falls/option selector switch
(24) on the display panel and the setting
cancel switch (23) together for at least 2
seconds to alter the mode display in the boom
length display to match the searcher hook
position.
For details about the searcher hook position
and the mode display in the boom length
display, see "Searcher Hook offset position
and mode display in boom length display" on
page 4-131.
Holding down both the number of wire
falls/option selector switch (24) and setting
cancel switch (23) together for at least 2
seconds switches the mode display in the
boom length display in the sequence "SH1 →
SH2 → SH3 → SH1…".
Fig. 4-377
NOTICE: When changing the setting, right after
doing so, release your hand from the switch, and
then press the switch again.
When in 850 kg searcher hook mode, searcher
hook position mode display and actual boom
length value are shown alternately.