Trouble shooting 5

Corrosion protection

No direct exposure to sunlight

Moisture and dirt

Short-term storage

Long-term storage

Plastic deformation

Random sample inspection

Natural ageing

Storage and Transport

This chapter contains important information on the correct storage and transport of the shields. Observance of the instructions and tips will increase the service life and availability of the shield. You will also be able to carry out the transport work quicker and more safely. Careful attention to the points in this chapter will help you to simplify your day-to-day work.

Storage

Components coated with temporary corrosion inhibitor are protected for around six months. The hydraulically operated equipment is operated before delivery with a test medium and then drained as far as possible before delivery. The medium remaining in the equipment also protects all the internal parts against corrosion for at least six months.

Storage of new Equipment

Protect the equipment against direct exposure to sunlight. Store the electrical equipment, electronic components, spare parts of rubber or plastic - such as seals and hoses - and hydraulic fluids only in closed rooms at temperatures of 15°C to 25°C. Protect all parts of the equipment stored outdoors against moisture and dirt, e.g. using tarpaulins. The mounting surfaces of hydraulic components must be protected against corrosion and sealed with blind plates. Protect the hydraulic plug connectors and the connectors of the electrical cables with the caps and plugs supplied. During short-term storage (approx. 4 weeks) of equipment outdoors, but at temperatures above freezing, electrical components must not be removed. Such components must be particularly protected against excessive temperatures, dirt and moisture. If the hydraulic components are to be stored for more than six months, they must be completely filled with a corrosion inhibiting/ frost-proofing fluid such as e.g. CV 50. Fill cylinder piston and ring sides in horizontal position (ports facing upwards) until they start to overflow. Then seal the ports with plastic or steel plugs. The equipment must be stored in a well ventilated, dry room – not outdoors. In order to prevent plastic deformation of the seal elements, cylinders must be stored in an upright position. Some cylinders, e.g. the corner cylinders, must be removed so that they can be stored upright. After a storage period of approx. two years, a random sample inspection must be performed to determine whether the measures taken and the method of storage has prevented damage. On request, the inspection can be carried out by DBT. Even with proper storage, seals and hoses are subject to natural ageing. A storage period of approx. two years is therefore quoted as an indicative value for these parts.

HFA fluids

Corrosion protection

Instructions on the storage of concentrates for hydraulic fluids can be found, if required, in section ”Barely flammable hydraulic fluids of Group HFA”in this operating manual.

IMPORTANT! Ensure when storing that any new supplies are stored separately from existing stocks in such a way that on removal, old stocks are always taken first.

Used equipment

If there is any need to store hydraulic equipment that has been in use before, you have to apply the measures mentioned above in the section ”storage of new equipment”also except of the paragraph ”corrosion protection” . Regarding corrosion protection apply the following: In case the hydraulic system will be put out of operation temporarily or used hydraulic components will be stored, special measures regarding corrosion protection are to be taken: – Flush the hydraulic components / system carefully. – The emulsion must be replaced completely by an anti corrosive fluid e.g. Hydrocor CV50.

CAUTION! There is a highly danger of hardly damaging or destroying the hydraulic components, if you do not replace the emulsion by an suitable anti-corrosive fluid. The emulsion possibly will change its properties within short time - caused e.g. by microbial attack - to an aggressive acting fluid. Flush the hydraulic components respectively system carefully and replace the emulsion completely by an suitable anti-corrosive agent.

temperatures below freezing

Electrical and electronic components

Transport

Load Units, Dimensions and Weights

Observe the transport sheets for the various transport units. They contain information on: J Dimensions J Weight J Lifting points J Center of gravity, etc. Where technically possible, the load units have suitable lifting points for transport and erection.

WARNING! Use only load handling devices complying with the technical and legal regulations for transporting loads. You could be seriously injured or even killed by falling loads. Use only suitable load handling devices.

Before Transport

Before transporting the equipment at temperatures below freezing, all hydraulic components operated with emulsion (HFAE or HFAS) must be completely drained and then filled with a a corrosion inhibiting/ frost-proofing fluid (e.g. CV 50). Transport of equipment at temperatures between -21°C and -40°C is only permissible when certain measures were taken to meet these conditions at the design and manufacturing stages. Nevertheless, the individual parts and devices of this equipment must not be subjected to sudden impact loads at such low temperatures and are only loaded statically or quasi-statically. During transport of this equipment with floor conveyors at such low temperatures, measures must also be taken to ensure that the parts and devices are not subjected to sudden impact loads. At very low temperatures and on poor roads, the transport vehicle speed must therefore be limited to max. 25 kph for truck transport. Electrical and electronic components must be removed for overseas transport or prolonged storage outdoors unless these components or the complete equipment is protected against harmful environmental influences by a suitable packaging. The electrical cables remain in the equipment. They must be carefully protected against transport damage and soiling of the connections.