Maeda MC815C, Operation Manual, Page: 24 / 426

14
[4] OUTRIGGER MINIMUM EXTENSION
• When operating the crane, be sure to set all the outriggers securely. No crane work can
be done unless all the lamps are lit up except the boom stowage lamp on the outrigger
monitor due to the action of the interlock device.
• Outriggers should be grounded while watching leveling instrument so that the
machine is set horizontally.
Tilting the machine more than 3° activates alarm buzzer. To stop the buzzer, place the
machine horizontally.
• Unless outriggers are extended to minimum, work should be performed in accordance
with values shown in the “Use with outriggers extended to maximum” column or “Use
with outriggers extended to
medium” column of the Rated Total Load Chart. Working
under improper values may cause the machine to tip over. Be very careful.
• When performing work with outriggers extended to minimum, be sure to place the
outriggers on level ground in such a way that the distance between the outrigger
bottom and the crawler bottom is 50 mm.
• The outrigger width is decreased on uneven terrain
etc. even if the dimension “a” in the figure on the
right is 50 mm. In this state of extension, do not
operate the crane. Otherwise the machine may tip
over causing serious personal injury.
• Slewing 360° with a load lifted may expose the
machine to an unstable position. Even if the total
combined weight is within the rated total load,
reduce the working radius and traveling speed as
much as possible, and use sufficient care.
“Outriggers extended to minimum” in Rated Total Load
Chart represents the condition in the figure on the right.
NOTES
“Outriggers extended to minimum” means that,
(1) The outrigger set up angle is set to the position pin
position (40° front and 30° rear).
(2) Inner box of one of the outriggers are contracted to
the minimum.
(3) All the outriggers are placed on level ground.
(4) Dimension
a (distance between bottom of the
outrigger and bottom of the track) in the figure on the
right is approximately 50 mm.
The above represents “Outriggers extended to minimum”.
NOTES
For N mode: Even if a single outrigger is contracted to
“minimum” from the position where all the outriggers are
placed at maximum or medium extended position, the
condition is defined as “outrigger extended to minimum”.
For outrigger mode M and P see” Operation 1.2.1 [4]
MONITOR DISPLAY (CRANE MODE) [10] Hanging
mode”.