II. MAINTENANCE
SAFETY MESSAGE TO
MAINTENANCE PERSONNEL
Listed below are some important safety instructions and precautions you should
follow:
•
Read and understand all instructions before operating this unit.
• Any maintenance to the unit must be performed by properly trained
personnel.
•
Any maintenance to the unit must be done with the power turned off.
•
Warning - Explosion Hazard – Substitution of components may
impair suitability for Class I, Division 2.
•
Warning - Explosion Hazard – Do not replace the fuse unless the
power has been switched off or the area is known to be non-haz-
ardous.
•
Warning - Explosion Hazard – Do not disconnect equipment un-
less the power has been switched off or the area is known to be
non-hazardous.
•
Never alter the unit in any manner. Safety may be endangered if addi-
tional openings or other alterations are made to units.
•
The nameplate, which contains cautionary or other information of impor-
tance to maintenance personnel, should not be obscured.
•
After performing any maintenance, test the unit to ensure that it is oper-
ating properly.
A. Cleaning Procedure
When installed in coastal areas, the stainless steel enclosure may be subjected to
“tea-staining.” Visually, this is a discoloration of the metal surface that tends to follow
the grain of the surface finish. This is not a serious form of corrosion and does not affect
the structural integrity or longevity of the enclosure.
As a recommended maintenance procedure, rinse the enclosure at regular inter-
vals with fresh water to remove chloride deposits. For stubborn deposits, the surface
may be rubbed with a non-metallic cleaning pad in a direction parallel with the grain
on the metal. For severe cases, a deoxidant such as a 2% phosphoric acid may be used,
diluted with fresh water. The enclosure is to be wiped dry after cleaning.
B. Replacement Parts
Contact the factory for spare parts availability and part numbers. Typical spare
parts are listed below. Due to certification, certain component parts are not available
for field replacement. Units with this type of damage must be either replaced entirely
or returned to Federal Signal for service.
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Summary of Contents for Echo E2
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