PAGE 44 OF 80
NIGHT SCAN CHIEF
OPERATING INSTRUCTIONS
TP-4602001-T
DECEMBER 2020
7.5 Adjusting the 90° and Mast Stowed Limit Switches
Before delivery of a new system, all switches are properly set and tested at the factory and nor
-
mally no switch adjustment is necessary. However, if a switch needs adjusted, for example if the
actuator was replaced or if the mounting surface is not flat, follow the steps outlined in this sec
-
tion to make the adjustment.
7.5.1
Diagnostic LEDs on the Base PC Board
The PC Board mounted at the mast Base has LED indicator lights useful for diagnostics for cir
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cuits. Table 7-2 charts the colors of the relevant diagnostic LEDs for the various mast positions.
An example of the diagnostic LEDs showing the mast in the stowed position is shown in Figure 7-
1. These diagnostic LEDs can be used to help determine if an adjustment is necessary, for exam
-
ple if D7 / D8 shows Yellow when the mast is supposed to be stowed. They are also useful in
assisting to determine when the switches have been properly adjusted.
Every 6 Months
Extend the mast to the 90° position
and make sure the mast is rigidly
driven into the rubber pad below the
mast. There should be no mast wob
-
ble observed when pulling on the
base tube.
If the mast shows mechanical play,
adjust the mast 90° limit switch
according to Section 7.5.2.
Yearly
Test the function of the emergency
stop button to ensure it is working
properly.
Replace defective parts.
Table 7-2 Mast Positions Shown by Diagnostic LEDs
Mast Position
D7/D8
D10/D11
D13/D14
Mast Stowed
Green
Green
Green
Mast Between 0° and 90°
Yellow
Green
Green
Mast at 90°
Yellow
Yellow
Green
Mast Fully Extended
Yellow
Yellow
Yellow
Table 7-1 Periodic Inspections (Continued)
Frequency
Inspection
Action
Содержание Night Scan Chief 1.0
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