Signboard
Ver-Mac 2018
PCMS Operations, Safety & Maintenance V3.0
31
10
Signboard
The exterior face of the signboard
should be cleaned periodically to maintain optimum
visibility of the display
.
NOTE
Ammonia-based detergents or petroleum-based solvents can damage the
polycarbonate face (Lexan) of sign and should not be used to clean the sign face.
Care and Cleaning Procedure for Signboard Face
1. Use plenty of water to minimize scratching of the surface by any abrasive dust and
debris accumulation
2. Use mild detergent to remove any accumulated oil or grease deposits
3. Rinse surface thoroughly to completely remove the dirt and detergent residue
10.1
Sign Brake
CAUTION
Always make sure that the sign brake is engaged before towing.
Disengage the sign brake before lowering, or raising the sign.
The sign brake is a heavy-duty band brake attached on the mast below the signboard.
It holds the signboard in position.
To engage the sign brake, pull handle until brake locks in a horizontal position,
parallel to the bottom of the sign
To disengage the sign brake, reverse the movement
To apply or adjust the tension on the band, adjust the small knob on the end of
the brake with a screwdriver
If this is not enough use the proper size socket wrench and tighten the nut
NOTE
In high wind areas or unusually windy conditions, the sign brake may not be
enough to prevent the signboard from turning. Under these circumstances, it may
be advisable to increase the tension on the band.
10.2
Photocells
CAUTION
Dust and grime accumulation can obstruct the correct functioning
of external photocells.
Photocells detect the ambient light conditions and the brightness of the sign display
adjusts in consequence.
External photocells are located on the junction box underneath the solar panels or on
the left outside side wall of the sign case.
