CONTROLS AND OPERATING PROCEDURES NBT30H-2 OPERATOR MANUAL
3-20
Published 03-18-2019 Control # 582-04
RCL Operating Mode - Sample
• Boom Length (BL) = 46.0 ft
• Boom Angle (BA) = 67.0°
• Load Radius (LR) = 16 ft
• Boom Tip Height (TH) = 50.0 ft
• # Parts of Line (#) = 2
• Maximum Allowable Load (ML) = 15,400 lbs.
• Actual Load (AL) = 8,523 lbs.
• All Active Limits
Operational Limits
Operational limits are set by the operator to limit crane
operation to a defined area. The operational limit icons are
displayed in the warning cluster on the RCL Operating Mode
screen and flash when the operator violates the limits.
To set operational limits select the LIMIT function key on the
RCL Operating Mode screen, the RCL Limits Menu screen
will appear.
RCL Limits Menu
Select the desired operational limit, use the arrow keypad to
highlight and select the desired operational limit.
Operational limit selections on the display are as follows:
1. Set a slew angle limit.
2. Set a wall (WADS) limit.
3. Set a boom angle limit.
4. Set a tip height limit.
5. Set a radius limit.
6. Delete all limits
Slew Angle Limit
RCL Limit #1
Rotate the crane superstructure to the desired position (the
number will appear on the display screen) then:
- Highlight the desired direction and press the select
function key to store the current slew angle.
The set slew angle will be displayed under the clockwise or
counterclockwise directional icons shown in the limit #1
screen depending on which was highlighted when the limit
was set. Once set, this value is fixed and does not change.
The current/operating slew angle will appear below the
center icon.
NOTE: Button #2 appears after a slew angle has been set
and only erases the individual highlighted limit on
this screen.
WADS Limit
RCL Limit #2
The RCL Limit #2 screen will set the superstructure radius
limit and slew angle limit to create a virtual wall.
Rotate the crane superstructure to the desired position (the
radius number will appear on the display screen) then:
- Press the Select function key to set the current
radius and slew angle for the boom nose
position.(Figure 3-17)
RCL Load Chart
Number
% of Maximum
Capacity
Load Moment Bar Graph
8717-8
8523
15400
50.0
67.0°
16
4
6
.
0
2
55%
FIGURE 3-14