NBT60XL OPERATOR MANUAL
CONTROLS AND OPERATING PROCEDURES
3
NATIONAL CRANE
Published 11-01-2020 Control # 710-00
3-3
device, the machine then responds to the operator's “input”.
For example, if the crane operator moves the swing left
joystick to rotate the machine, the “input” from the joystick is
read by the control modules but the crane server module
knows that movement is not allowed unless the swing brake
release switch is activated. So in this example, the swing left
proportional output is not energized and there is no crane
movement.
GETTING STARTED
The NBT60XL cranes feature several interlocks that must be
satisfied before operating the crane. To operate the crane,
the machine must be started from the crane cab key switch
(11, Figure 3-4). Starting the truck from the truck cab will not
allow the crane to operate. There are several interlocking
conditions that must be met before turning on and operating
the crane from the crane cab:
•
The lower ground level outrigger panel Emergency Stop
(ESTOP) switches (9, Figure 3-1) must be released.
•
The Crane Cab ESTOP switch (9, Figure 3-2) must be
released.
•
The truck ignition key switch must be OFF.
•
Hydraulic Suction Pump Shut-off Valve must be open.
For information about the shut-off valve, see “Hydraulic
Suction Pump Shut-off Valve” on page 3-19.
There is also an interlock that prevents the crane key switch
from starting the truck engine:
•
PTO must be engaged. For more information, see
“Power Take Off (PTO)” on page 3-4.
If unable to activate the crane cab key switch, first check the
status of these items and then cycle the crane cab key switch
and try again. These interlocks are designed to ensure that
the crane performs as desired and allow for all the ESTOP
switches to be available for use if needed.
Crane Ignition and Control States
The crane control system consists of many “states” which
describe groups of functions that can or cannot be performed
while in that state. This allows for the machine to operate
several ways when running the truck chassis, the crane, or
radio remote control of the crane. These “states” can be
seen through the crane’s diagnostic software program only.
Ignition States
Since the crane and the truck chassis both have key
switches, there is interlock logic to only allow one switch to
be active at a time even if both switches are turned ON. The
first switch to be turned to ignition is the controlling key
switch. Here is a summary of the main ignition states:
•
Ignition State = 0: truck key off, crane key off or
interlocked
•
Ignition State = 1: truck key on
•
Ignition State = 2: Lower control active. Used to run
lower outrigger controls. (truck key off, crane key on,
crane power off)
•
Ignition State = 3: Crane control active (truck key off,
crane key on, crane power on. Includes seat switch, arm
rest switch, and CP switch)
•
Ignition State = 4: Remote active. Allows remote
operation. (turn truck and crane keys off, remote switch
on, remote ESTOP off)
•
Ignition State = 5: Remote idle. No remote operation until
ESTOP is off. (Truck key off, remote switch on, remote
ESTOP on)
To transition between Ignition State = 0 to Ignition State = 2,
the crane cab key switch should be turned to the ignition
position. To transition from Crane Ignition to Truck Ignition,
the crane cab key switch must first be turned OFF and then
the truck key switch can be turned to ignition. Both switches
must be OFF first before changing between states 1 and 2.
Control States
Much like the Ignition States, Crane Control States allow for
the crane to be operated in different ways depending on the
desired function. There are several Crane Control States, but
the main states are listed below:
•
Control State = 5 (Control OFF)
•
Control State = 0 (Lower Control)
•
Control State = 1 (Crane Cab Control)
•
Control State = 3 (Radio Remote Control)
When the Crane key switch is turned ON and the truck
engine is started, the crane is in Control State = 0. In this
state, the outriggers can be operated using the ground level
panels on either side of the crane and the hoists and if
equipped, the Single Front Outrigger (SFO). The cab HVAC
is also functional in Control State 0 to allow the machine to
be heated and cooled while not using the crane functions.
To transition between Control State = 0 to Control State = 1,
the crane power switch must be ON, the left armrest must be
in the down position, and the operator must be sitting on the
cab seat to activate the safety switch. In this Control State 1,
the lower outrigger stations and the standard remote control
are inactive.
To use the optional crane remote controller (if equipped), the
crane power switch and radio remote switch must both be
OFF and the crane cab ignition switch must be ON. To
enable remote control operation, turn on the remote power
switch. Refer to
Crane Remote Control (Optional)
for more information on the crane remote controller
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Reference
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