Night Scan Chief
the hardwired remote control) involves giving two quick successive depressions of the “Mast Down”
button (within ½ second). This will initiate an unattended complete stowing of the mast. This Auto-stow
mode can be interrupted and canceled at any time by pressing any of the buttons on the Remote Control.
Note
: To ensure proper seating of the RCP in Night Scan Chief saddle, the control watches for an
increase of current from the actuator. Once this has been satisfied, the control will shut itself off on NFPA
compliant installations. For non-NFPA installations, it will be necessary to manually shut off power by
pushing the Push/Pull switch on the junction box. If by chance there is no increase in current and the
actuator shuts off because of its internal limit switch, a fault message will be displayed.
Once the control is shut off, the Night Scan is totally disconnected from power, and the “Mast Stowed”
safety interlock contact closes signaling it is safe to move the vehicle.
Be sure that no buttons are
illuminated on the remote after you believe it is stowed. Illuminated buttons indicate that the unit
is not stowed.
After making certain that the unit is properly stowed in the saddle, unplug the remote
control and stow it where it will not be damaged in transport. Unplugging the remote will remove any
possibility that the Chief could become active and extend unexpectedly.
3.9 EMERGENCY STOW (LOSS OF POWER):
Make sure all power has been disconnected from the Night
Scan prior to manually lowering mast.
Make sure lights have cooled completely before manually
panning or tilting the RCP.
In the event of power loss or an unrecoverable error condition, the Night Scan Chief will automatically
exhaust all air and nest. However, the mast will NOT return to its fully stowed, horizontal position. This
must be accomplished manually. It is required that two people perform this operation as the mast is very
heavy and can cause severe injury or death if not done with extreme caution. It may be necessary to
manually pan the RCP so that when it is manually nested, the lights do not make contact with the
mounting surface or the saddle. To manually pan the unit, firmly grasp the RCP by the horizontal shafts
and
slowly
rotate to a point perpendicular to the length of the base. Additionally, it may be necessary to
manually tilt the lights to prevent damage when stowing the mast. Tilt the lights by grasping the top and
bottom of the light bar and
slowly
rotating the lights such that they face down when fully stowed.
Support the mast before removing shoulder screw! Once
removed, the mast and light assembly is free to fall.
Remove the right side base cover (opposite look up light). Secure the mast in an upright position to
prevent it from falling freely. Remove the knurled shaft from the bottom of the actuator. CAREFULLY
lower the mast down into the saddle. Secure the mast in this nested position before moving the vehicle.
Revision 1
3-6
