Maeda MC285C-3 - Load Factor Display; Actual Load Display; Rated Total Load Display; Boom Length Display

M A E D A Mini-Crawler Crane Section 4 – MOMENT LIMITER (OVERLOAD DETECTOR)
1/2019 MC285C-3 4-71
Load Factor Display
The load factor state of the moment limiter load is
illuminated on the bar according to the load factor
change.
• Load factor display 100 - 110 (Load factor 100%
or more): red
• Load factor display 90 (Load factor 90 - less
than 100%): yellow
• Load factor display 0 - 80 (Load factor less than
90%): green
Fig. 4-189
Actual Load Display
Continually displays the actual load of the hoisted
load during crane operations.
The actual load equals the total weight of the hook,
hoisting attachment, and hoisted load. When no
load is hoisted, it is normal that “0.0” to “0.1” is
displayed. Contact us or our sales service agency
if outside this range.
Fig. 4-190
NOTICE:
• Due to the structure of load detection, a
numerical value of actual load display changes
when the boom is raised and lowered. Although
the numerical value of the actual load changes
on a higher side when boom raising operation is
performed, this is not a fault.
• When the crane stops, the numerical value of
actual load display changes if there is slewing of
load.
Rated Total Load Display
The rated total load (i.e. total weight of hook,
hoisting attachment, and hoisted load) which the
crane can currently hoist is displayed. It is
calculated according to the conditions including
the number of falls of the hook and the working
radius.
Fig. 4-191
Boom Length Display
The current boom length is continually displayed
during crane operations.
The boom length refers to the distance from the
base pin of the boom to the sheave pin of the tip
boom.
Fig. 4-192
Boom Angle Display
The current boom angle is continually displayed
during crane operations.
The boom angle refers to the angle between the
boom and horizontal line.
Fig. 4-193