NATIONAL CRANE Published 09-06-2019 Control # 691-01 7-15
NBT60L OPERATOR MANUAL RATED CAPACITY LIMITER
• Select DEL function key to remove the current
settings.
• Select OK to store each position after input.
• ESC to return to previous screen with no inputs.
Setting the Boom Angle Limit
Use the following procedure to set the boom angle limit. The
minimum (MIN), maximum (MAX), or MIN and MAX boom
angle limits can be set. When a limit is set, the limit bar turns
green on the screen.
The current boom angle is shown in the upper right hand
corner.
RCL Limit #3
1. Move the crane boom to the desired boom angle (the
angle number appears on the display screen).
2. Select SET to set the MAX boom angle.
3. Do one of the following:
• Select SET, function key (3) to set the MIN boom angle.
• Selecting either DEL function key removes the
current boom angle setting.
• ESC to return to previous screen with no inputs.
Setting the Tip Height Limit
Use the following procedure to set the limit for the maximum
boom tip height. The current boom tip height is always
shown in the upper right hand corner.
RCL Limit #4
1. Move the crane boom to the desired boom tip height
point (it appears on the display screen).
2. Select one of the following:
• Select SET to store the current boom tip position
as the MAX.
• Select DEL to delete the established limit.
• ESC to return to previous screen with no inputs.
Setting Radius Limit
Use the following procedure to set the limit for the boom
radius. This screen can set either the maximum (MAX)
radius, the Minimum (MIN) boom radius, or both the MIN and
MAX radius.
The current radius is shown in the upper right hand corner.
RCL Limit #5
1. Move the crane boom to the desired boom radius (it
appears on the display screen).
2. Do one of the following
• Select SET to set the MAX boom radius.
• Select SET, function key (3) to set the MIN boom radius.
• Selecting either DEL function key removes that
radius limit setting.
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