PATLITE NHL - Manual (Page 78)

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6.2 Signal Tower Unit Color Arrangement
The following explains the method when rearranging or repairing the LED units from customer purchased
parts.
6.2.1 NHL Signal Tower Unit (Color) Rearrangement Method
1. Turn the power off before changing the color sequence.
2. Carefully peel off the cover sticker, then loosen the center shaft and remove the head cover and shaft.
Because the upper and lower LED units are secured to each other by two snaps, carefully remove the
LED unit by gently pushing the snaps inward.
3. When increasing or decreasing tiers, be sure to replace the center shaft with the proper length to match
the number of tiers when changing.
4. After the center shaft is properly fixed, place the static-free cover sticker back on.
Fig. 6.2.1 NHL Signal Tower Unit (Color) Rearrangement Figure
Snaps
Snaps
Align snaps with Tabs
Align snaps with Tabs
Connectors
Please
• Do not attempt to forcibly detach an LED unit. Failure to comply may damage the unit.
• The LED unit falling and breaking may result if the center shaft is not properly tightened.
• Overtightening the center shaft may cause damage to the threads or tapping hole, causing
possible malfunction or damage to the LED units.
• Be sure to torque the center screw no more than 0.68 N-m. Failure to do so may cause
damage to the unit
• Be careful of the contact pins when handling the LED unit, they may be sharp.