National Crane Published 9-26-2018 Control # 646-02 7-11
NTC55 OPERATOR MANUAL RATED CAPACITY LIMITER
- - Real Time I/O - Pressing this button will
navigate to the Real Time I/O screen.
- - General Warning - See Diagnostic Screen
to see which warning is active.
- - Barge Mode - Icon shown when barge
mode was selected.
- - Counterweight Removal Position - Shown
to indicate that the operator is now approaching
(YELLOW) region where the CWT slab(s) can be
pinned and/or unpinned to the turret/tbox.
The following RCL Operating Mode - Sample has been set
up with extended jib @ 30° offset, all limits set and displays
the following:
RCL Operating Mode - Sample
• Boom Length (BL) = 102.0 ft
• Boom Angle (BA) = 49.9°
• Load Radius (LR) = 93.4 ft
• Boom Tip Height (TH) = 76.1 ft
• # Parts of Line (#) = 1
• Maximum Allowable Load (ML) = 3,500 lb
• Actual Load (AL) = 1,150 lb
• % of Maximum Capacity = 33%
• All Active Limits
TARE Function
The TARE function calculates the net weight of the load
(Total Load –Hook Block). The TARE function must be
activated before lifting. To use the TARE function:
• Rig the load to the hook block.
• Before lifting the load, press the TARE function.
• Lift the Load. The net load is shown in the actual number
display.
The TARE button icon will flash blue in color when active.
Changing the boom angle or length automatically returns the
actual load display back to the total weight (Load +Hook
Block).
RCL Load Chart
Number
% of Maximum
Capacity
Load Moment Bar Graph
7623-20b
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