Maeda MC815C, Operation Manual, Page: 129 / 426

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1.5.4 MOMENT LIMITER SETTINGS
[1] NUMBER OF WIRE FALLS SELECTOR SWITCH
As to the number of wire falls, check the actual number of wires, and set the correct
value.
If the setting is incorrect, the crane fails to stop automatically even when the suspended
load is approaching overload due to a warning alarm that fails to go off. This will result
in a serious accident, such as damage to the crane, or overturning of the machine.
To change the number of wire falls, touch the setting switch
on the monitor to display the User Initial Mode screen,
which allows you to change the setting.
The value set for the number of wire falls is displayed in its
corresponding field on the monitor.
Refer to section “OPERATION 1.2.1 [7] Setting switch” on
how to switch the number of wire falls.
[2] BOOM ANGLE UPPER LIMIT SWITCH
Use this switch to set or reset the boom angle upper limit
value.
[Setting]
With no value being set for the upper limit angle, move the
boom to an angle you want to set as an upper limit angle,
and push and hold the switch for 2 seconds.
The boom angle at this time will be set as an upper limit
angle.
At the same time, the illuminated blue indicator lamp on the
switch turns orange to indicate that the upper limit angle
has been set.
To enable this setting, turn the key switch to the “OFF”
position and then turn it to the “ON” position again, or lower
the boom with the engine running so that the boom angle
becomes smaller than the set value by at least “10
degrees” to get out of the warning alarm zone.
NOTES
Before performing a practical operation, be sure to check if the boom automatically stops at the
specified angle. If the boom does not stop, set the upper limit angle again by repeating the
procedure mentioned above.
[Resetting]
To reset the upper limit angle that has been set (the indicator lamp is illuminated in orange), push
and hold the switch for 5 seconds,
The currently effective upper limit angle will be reset. At the same time the illuminated orange
indicator lamp at the switch turns blue to indicate that the upper limit angle has been reset.
NOTES
The setting and resetting of an upper limit angle cannot be performed consecutively even if the
switch is touched and held for 2 seconds. To perform these operations consecutively, release
your finger from the switch between each operation.