Document UT-MT-0872-EN
Page 18 of 31
Edition 27/09/2018
LIMS INSTRUCTION MANUAL
5
MAINTENANCE
ATTENTION!
The CCR MUST be TURNED OFF before any intervention on the
sign.
5.1
Periodical Checks
Daily
Check for burned-out led
Monthly
Check for dirty panels
Semi-Annual
Check for loose wire connections
Check for cracked or deteriorated wires
5.2
LEDs Luminous Source Replacement
a)
Be sure that the series circuit is de-activated (CCR OFF); in any case turn the main switch to
OFF position.
b)
Loosen the screws (without removing them) of the
top “C” clamps of the supports. The number is
variable based on the poles number.
c)
Remove four screws that connect the top cover
with the sides of the structure.
