Manitowoc National Crane NBT40-1 Series User Manual

National Crane 3-29-2018 Control # 610-00 4-19
NBT40-1 SERIES OPERATOR MANUAL OPERATING CONTROLS - CRANE
4
This system is comprised of several sensors and modules
located throughout the machine:
1. Outrigger string potentiometers are used in the standard
outrigger monitoring system (OMS).
2. An aerial lift interlock module is located inside the torsion
box near the passenger side outrigger controllers (See
Figure 4-15.)
3. A 3-axis inclinometer is located in the crane turret (See
Figure 4-16).
4. Slew position sensor located internal to the electrical slip
ring (See Figure 4-16).
5. Truck chassis parking brake switch located on the truck
chassis (J1939 CANbus interface)
6. Outrigger motion alarm (OMA) located at the rear of the
machine.
7. Boom angle sensor located internal to the RCL system
length and angle cable reel on left side of boom.
Startup
Upon turning the operator cab keyswitch to the ignition
position, the outrigger jack monitoring system begins to
sense the configuration of the machine. The truck engine
must be started within approximately 30 seconds of ignition
position in order for all sensors to be powered up and
communicating with the aerial lift interlock module
Figure 4-17.
After engine is running, the outrigger functions must not be
operated until the RCL system has powered up and is ready
to be configured. The outrigger motion alarm will sound once
to indicate the system is operational. During this time, all
boom functions are disabled until the outriggers are properly
setup within specifications.
Outrigger Setup
The outriggers can be setup and leveled per operating
instructions, and the RCL can be configured to match the
actual configuration of the machine. The outrigger jack
monitoring system will not allow operation of any crane
functions until:
1. Outrigger jacks are extended
2. Boom is in the boom rest
3. Outriggers are leveled.
If operation is allowed, the outrigger motion alarm will
activate and sound two low pitch tones followed by a single
higher tone indicating the boom functions are permissible for
operation.
During Operation
Once boom functions are permitted, the boom functions
operate normally as per operating instructions. The outrigger
jack monitoring system monitors the real-time status of the
level sensor during operation and allows full range of
operation. If the sensor indicates that the machine is not
level according to the specifications, the outrigger motion
alarm (OMA) will sound indicating an out of level condition.
All boom functions will remain operational when alarm
FIGURE 4-15
9242
FIGURE 4-16
9243
1
FIGURE 4-17
9241

Manitowoc National Crane NBT40-1 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40-1 Series
Category	Construction Equipment
Language	English