M A E D A Mini-Crawler Crane Section 3 –RATED TOTAL LOAD CHARTS
3/2019 MC305C-3 3-11
RATED TOTAL LOAD
CHARTS
CAUTION:
•
All the values provided in the rated total load
chart are based on the assumption that the
machine is placed on a level and firm
surface.
The machine may topple over if proper
outrigger setting or ground condition fails to
be assured. Exercise due caution when
performing crane operation.
•
The values in the rated total load chart are
determined based on the working radius
allowing for deflection that is developed
when load is applied to the boom.
•
When extending boom (3) even if only
slightly, crane operation should proceed to
the extent of performance of "Boom (1) + (2)
+ (3)".
•
When extending boom (4) even if only
slightly, crane operation should proceed to
the extent of performance of "Boom (1) + (2)
+ (3) + (4)".
•
When half of the "
mark" passes boom (3),
crane operation should proceed to the
extent of performance of "Boom (1) + (2) +
(3) + (4) + (5)".
•
If the working radius exceeds that stated in
the table even if only slightly, crane
operation should proceed with respect to
the rated total load corresponding to the
working radius in the following table.
•
The rated total load is a load including the
mass of a hoisting accessory [hook: 30kg].
• Operate using the value on the load chart
corresponding to the "MAX", "MID" or "MIN"
outrigger extension.
•
The rated lifting capacities with bold
numbers are based on crane strength and
others, on its stabilities (not exceeded 85%
of tipping).
Programmable Moment Limiter
WARNING! Tip Hazard. The following
precautions should always be observed when
reading the "rated total load" provided by the
programmable moment limiter.
•
The outriggers should be placed on a level
and firm surface.
•
The outriggers should be at maximum
extension as much as possible.
•
The weight of an object, including that of a
hoisting accessory and slinging rope, must
remain below the rated total load for hoisting
objects. With the boom length (number of
stages) and angle specified, make a
comparison between the rated total load
provided by the programmable moment
limiter and the weight of the object.
The programmable moment limiter provides
readouts on the rated total load under the
following conditions:
•
The outriggers are placed on a level and firm
surface.
•
No deflection is developed in the boom.
Reading the Angle Indicator
The intersection point of the pointer that is
attached to the, and the label on the boom, is the
current boom angle. The boom angle shown in the
figure below is 35ﾟ.
Fig. 3-9
To Next Page
Loading...
