Liko Likorall 200 Assembly Instruction Manual page 6

15 Environmental Impact – corrosive environments
Due to the environment an overhead system is installed in, components may be subject to corrosion.
High temperature, high relative humidity, poor ventilation, presence of chlorine and different combinations of
these factors, will affect the corrosion rate.
Depending on material type a corrosion attack can occur suddenly or in other cases form gradually.
The corrosion rate and type of corrosion attack might be different in one area of the installation compared to
another. Fixing points classified as safety critical, installed in a corrosive environment such as indoor
pool or bathroom, must be inspected. When a component has reached a certain stage of corrosion it
might need to be replaced.
Note! Print out in color.
Check for visible severe corrosion and material loss and identify if components need to be replaced.
Galvanized steel
These pictures describes the evaluation method for all galvanized steel components.
1. New bolt 2. Acceptable
1. A galvanized steel component.
2. White rust on a component appears when the surface treatment corrodes.
3. Red rust appears when the actual steel has started to corrode. Corroding steel will result in material loss
and should therefore be replaced.
4. A component covered in red rust is unfit for use.
Powder coated steel
These pictures describes the evaluation method for all powder coated steel components.
1. New
1. A powder coated steel component.
2. Local discoloration may occur in close proximity to corroding non-painted components. Stains on the
painted surface is acceptable.
3. Cracks in the paint and red corrosion under the paint is a sign of corroding steel. Corroding steel will result
in material loss and should therefore be replaced.
4. A component with peeling coating, bubbles in the paint and red corrosion under the paint is unfit to use.
ServiceManual Likorall™ overhead lift (3EN200405 Rev 10)
Periodic Inspection Likorall
Instructions for the inspection points
3. Replace
2. Acceptable 3. Replace
Likorall™
4. NOT acceptable
4. NOT acceptable
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