Maeda MC305C-3 - Descriptions of Switches on Moment Limiter Display; Fall Mode Selector Switch and Fall Mode Display LED (Blue); Boom Angle Upper Limit Switch and LED (Orange)

M A E D A Mini-Crawler Crane Section 4 – MOMENT LIMITER (OVERLOAD DETECTOR)
3/2019 MC305C-3 4-65
Descriptions of Switches on
Moment Limiter Display
Fall Mode Selector Switch and Fall Mode
Display LED (Blue)
DANGER! When entering the number of falls,
verify the actually used number of falls and
make sure to set up correctly.
Entering incorrect number of falls may
prevent issuance of the pre-warnings and
boom auto-stop even when the overload is
near happening, and thus may result in crane
damage or machine trip that may result in
serious accidents.
Use this switch to change the number of wire falls.
• Keep pressing the switch for 2 seconds or more.
The setting changes from "4-falls" to "1-fall".
At the same time, the fall mode display LED
changes from "4-falls" to "1-fall", indicating that
the setting has changed.
• Then each time you press the switch for 2
seconds or more, the setting of the number of
wire falls changes from "1-fall" to "2-falls", and
then from "2-falls" to "4-falls".
Fig. 4-175
NOTICE: When changing the setting right after
doing so, release your hand from the switch, and
then press the switch again.
Boom Angle Upper Limit Switch and
LED (Orange)
Use this switch to set or cancel the boom angle
upper limit.
Fig. 4-176
Setup
With no upper limit value being set, set the boom
to the angle you would like, and press the switch
for 2 seconds.
The boom angle at this point is set as the upper
limit.
At the same time, the LED lights up indicating that
the upper limit value was set.
To enable this setting, turn the key switch to the
"ON" position again after turning it to the "OFF"
position, or lower the boom by "10 degrees" or
more from the set boom angle to get out of the
pre-warning zone while the engine is being
started.
NOTICE: Be sure to verify that the boom
automatically stops at the set angle before
performing the actual operation. If the boom does
not stop automatically, re-set the boom angle
using the procedure above.
When the boom reaches the pre-warning zone or
stops at the upper limit with the boom angle upper
limit set, the boom angle upper limit LED flashes.
Cancel
With the upper limit value being set (LED ON),
press the switch for 5 seconds.
The current upper limit value setting will be
cleared. At the same time, the LED goes off
indicating that the upper limit value setting is
cleared.
NOTICE: The setting and cancelling will not
repeat even if you keep the switch pressed for
more than 2 seconds. Let your hand go off the
switch and press the switch again.