Warranty

nonwovens may be used as well. In general, products containing ordinary steel wool or steel brushes
should be avoided. It must also be assured that mechanical cleaning utensils are used only for stainless
steel products. Wear and residues may damage the passive layer.
2.2 Upkeep cleaning
The nature and scope of maintenance and upkeep cleaning depends upon the application of the product
and the particular ambient conditions. In particular, a distinction is made between indoor and outdoor
application, as well as the presence of sand, particulates and the impact of the ambient atmosphere.
Oftentimes, regularly occurring rainfall will wash away accumulated dirt and contaminants. Precipitation
reduces or may even eliminate the need for additional cleaning. However, it must be assured that the rain
is free of acids, residues and contaminants, and that all components are uniformly wetted.
Components that are protected against rainfall or that are exposed to industrial or coastal atmospheres
require particular attention. Regular cleaning is mandatory in such situations, and regular maintenance
including "upkeep cleaning" must be performed at least every 6 months. More frequent cleaning is
needed when particularly heavy soiling or exposure occurs. Exogenous iron contamination, for example
as caused by welding, cutting, grinding and drilling or by contact with unalloyed steels, must be prevented
under all circumstances as exposure to such conditions and resulting particulates can impact the passive
layer. ASTM Standard A380 describes methods for identifying and removing exogenous iron. Since some
of the measures are very elaborate and may require detailed reviews in advance, such cases must be
separately considered and assessed in connection with the use of Jakob’s product. For indoor
applications where the product is not exposed to contamination, the removal of dust and fingerprints is
generally sufficient.
3 Periodic inspections
Jakob wire rope and tensile structures must be periodically checked for functional integrity and damage.
Periodic inspection is the operator's responsibility. Trained technicians should perform these inspections
at least once per year. The operator must define the nature and scope of these inspections after fully
considering the product, its use, maintenance, exposures and environment.
3.1 Suspension and guy ropes with end connectors
Suspension and guy ropes must be visually checked for broken wires, compression points, kinks and
tension. End connectors must also be inspected for damage and corrosion. Particular attention must be
paid to safety elements such as nuts or retaining rings; they must be present and correctly tightened.
3.2 Tensile structures
The tensile structure must be visually inspected for compression points and kinks as well as for broken
ropes, strands and individual wires. Connecting ropes between the tensile structure and the surrounding
construction must also be checked for damage.
3.3 Other load-bearing components
General structural and accessory components with a loadbearing function must be visually checked for
damage and corrosion. Welds and threaded connections must be inspected with particular care.