National Crane Published 03-18-2019 Control # 582-04 3-19
NBT30H-2 OPERATOR MANUAL CONTROLS AND OPERATING PROCEDURES
The outrigger with the shortest span determines the chart
that is to be used. For example:
If one side of the outriggers is at full-span and the other side
is at mid-span, the configuration selected by the RCL and
shaded in light blue on the left of the display screen would be
mid-span.
Reeving Configuration
Screen 8
Use the Reeving Configuration Screen to set the current
reeving configuration; press either the up or down arrows to
change reeving from 1 part line up to 7 parts line.
Configuration Confirmation
After the RCL crane configuration setup is complete, the
crane configuration confirmation Screen 9 is displayed.
Check the configuration and press the Select function
key to confirm the choice that is highlighted if the
configuration is correct. This verifies the lift configuration of
the crane.
If the confirmation Screen 9 is not correct, use the back
arrow key to go back to Screen 8 and correct the
configuration.
If the machine is shut down and restarted again within 2
hours, the operator can Press the Select button at Screen 9.
Pressing the Select button will automatically return the RCL
to the configuration used at shutdown. Re-configuration of
the RCL will not be required.
Screen 9
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.
Changing the boom angle or length automatically returns the
actual load display back to the total weight (Load + Hook
Block).
Operating Mode
After the RCL setup is complete the RCL Operating Mode
screen is displayed.
The key functions at the bottom of the RCL Operating Mode
screen are:
• - Reeving selecting screen; pressing this button
returns to the number of parts of line selection screen.
This button does not appear if Man Basket is selected.
• - Horn Silence pressing disables the horn, if
active for approximately 15 seconds per press. Button
will flash BLUE when active.
• - Wrench - Pressing this key transitions to the
diagnostics screen.
• - MAIN - Pressing this key returns to the MAIN
Menu screen.
• LIMIT - Pressing this key transitions to the RCL Limits
Menu screen (WADS).
• - Pressing TARE temporarily zeros out the Actual
Load indicated on the screen to show the weight of the
load only. If the boom angle changes more than 2
degrees or the boom length changes more than 2.5
inches, return to total actual load, non-Tare. Tare button
icon will flash BLUE when active.
The following example RCL Operating Mode - Sample
screen has been set up with all limits set and displays the
following: