Will Burt Night Scan Chief Series Operating Instructions Manual page 18

NIGHT SCAN CHIEF
OPERATING INSTRUCTIONS
Saddle
Wiring Access Holes
Base Board
Electrical Ground Bar Look-Up Light
Figure 3-3 Night Scan Chief Components (Left Cover Removed)
90° Limit Switch
Stowed Limit Switch
Tilt Actuator
Safety Valve
Air Compressor (or Valve)
Figure 3-4 Night Scan Chief Components (Right Cover Removed)
90° Limit Switch: This limit switch activates when the mast reaches the 90° vertical position.
The mast is driven into a rubber pad under the mast. It is activated by a magnet located on the tilt
mechanism. The lights and RCP functions are disabled until this 90° limit switch is activated.
Once activated, the RCP and lights are active for use. The limit switch is adjustable and set at the
factory. See Section 7.5.2 for optional adjustment procedure.
Stowed Limit Switch: This limit switch activates when the mast reaches the horizontal stowed
position. After this switch activates, the controller drives the RCP into the saddle until a specified
current limit is achieved for 0.5 seconds. This drives the RCP into the saddle ensuring a tight fit
for vehicle transport. The stowed limit switch is activated by a magnet located on the tilt mecha-
nism. The switch location is adjustable and is factory set for a horizontal mounting surface. If the
PAGE 16 OF 80 TP-4602001-T
DECEMBER 2020