The arrival of equipment at a construction site does not yet mean that it has been accepted in proper condition. Between unloading and the start of installation there is an important moment for recording the initial condition: it is necessary to check the equipment, the packaging and the completeness, and to record any damage identified before further work begins on the object. On a construction site the cargo immediately enters an environment where unloading, movement, unpacking, storage and preparation for installation are going on at the same time. If a defect is discovered after these operations, it is considerably harder to establish when it appeared. This is particularly relevant for expensive industrial equipment, which is transported dismantled or partially packed.
An acceptance survey makes it possible to record the condition of the equipment independently, immediately after delivery. The surveyor compares the actual object with the documents, checks the identification data, inspects the packaging, the securing and the accessible structural elements, records damage and completeness, supplementing the results with photo documentation.
Sequence of the equipment inspection
The inspection of the equipment begins with a consistent check of the whole object rather than with a search for a specific defect. First the identity of the cargo is established, then the packaging and the equipment are assessed, the completeness is checked and the results are compared with the documents.
The first step is identification: the name, marking, serial number, cargo unit number. This makes it possible to link a specific unit to the documents and to avoid confusing components from different sets.
The packaging is then inspected: punctures, tears, dents, impact marks, damage to the protective coatings and other damage are recorded. It is important to state their location and to check whether corresponding signs are present on the equipment.
After that the accessible structural elements are assessed: the housing, panels, joints, fastenings, supports and protective parts. If part of the object is covered by the packaging, the extent of the accessible inspection and the need for opening are noted.
Traces of moisture and corrosion are checked separately. For electrical and sensitive equipment they may require additional diagnostics even without visible mechanical damage.
The completeness is compared with the specification, the packing list and other documents. For multi-unit deliveries the presence of all the components envisaged is checked.
The main groups of the check:
- identification of the equipment and the cargo units;
- the condition of the packaging and the protective elements;
- mechanical damage;
- the accessible structural elements, fastenings and supports;
- traces of moisture, contamination and corrosion;
- completeness;
- conformity of the equipment with the documents;
- the circumstances of unloading and placement.
The signs are assessed together. Damaged packaging does not by itself prove that the equipment is damaged, but its deformation together with a dent on the housing or a displacement of an element already requires joint recording.
Recording mechanical damage
Mechanical damage is one of the main categories of defects on acceptance of equipment. However, an entry such as “a dent has been found” is not enough: it is necessary to state where the defect is located, what it looks like, what its size is and which element it belongs to.
During the inspection dents, cracks, deformations of panels, impact marks, damage to the coating and other visible changes are recorded. Particular attention is required by welded joints, fasteners, flanges, nozzles, protective guards and protruding elements, which are especially vulnerable during transportation and unloading.
For each defect it is desirable to record in sequence:
- the specific element and its location;
- the nature and size of the damage;
- a general view of the area;
- a close-up of the defect.
It is particularly important to inspect elements that maintain a certain geometry. A displaced panel, a deformed flange or a skewed guard may become inaccessible for a repeat check after installation.
At the same time the surveyor records the observable defect but must not, without appropriate tests, determine its technical danger or the cause of its occurrence. The absence of major damage also does not mean full serviceability: deformation of a joint or of a separate assembly may only be revealed by a detailed inspection or subsequent diagnostics.
Hidden and non-obvious signs of mechanical impact
Equipment may show no noticeable damage despite a significant load during transportation. The impact is sometimes transferred through the fastenings, supports and joints, which is why on acceptance it is important to check not only the surfaces of the housing but also indirect signs.
A possible impact may be indicated by:
- displacement of panels and parts;
- a change in the standard clearances and symmetry;
- deformation of bolts, brackets and retainers;
- damage to welded joints;
- traces of contact or scuffing of the protective coating;
- damage to the packaging in the corresponding zone.
Particular attention is paid to the fastenings, supports, welded joints, flanges, nozzles, covers, protective guards, cable entries and other protruding elements. If the position of a part can be compared with a symmetrical or standard structure, such a comparison also helps to reveal a deviation.
All such signs should be recorded before installation work. Removing the packaging, repositioning parts, tightening the fasteners or assembly can change the initial condition and complicate the subsequent analysis.
An indirect sign does not by itself prove the cause of the damage. The surveyor records the displacement, deformation or trace of contact identified, while establishing the mechanism of the impact requires an additional technical examination where necessary.
What damage the packaging can tell about
On acceptance the packaging helps to reconstruct the picture of the impact on the cargo during transportation and unloading. It can protect the equipment from impacts and moisture, but at the same time it retains the traces of those effects, which is why its condition must be recorded before unpacking.
Punctures, tears, dents, broken frame elements, damage to the base and traces of contact with loading equipment are checked. If damage to the packaging is located opposite a particular assembly of the equipment, the condition of the corresponding element is checked. Such a coincidence is a circumstance for analysis, but does not by itself establish the cause of the damage.
The internal fastenings are assessed separately: spacers, padding, straps and other retainers. Their displacement or destruction may be an important sign of mechanical impact. The moisture protection is also checked – the integrity of the film, covers and protective bags, and the presence of water or condensation.
Before opening it is desirable to record the general appearance of the packaging, the marking, the damaged areas and the position of the cargo. After unpacking, part of these signs may be lost.
The main signs:
- mechanical damage to the container;
- the condition of the base and the fastenings;
- traces of loading equipment;
- displacement of internal retainers;
- breach of the moisture protection;
- water, moisture or condensation;
- conformity of the packaging with the marking and the documents.
The condition of the packaging does not automatically prove the cause or the party at fault, but it makes it possible to compare the damage to the container with the condition of the equipment and other acceptance data.
Moisture, corrosion and contamination
On acceptance of equipment it is necessary to check not only mechanical damage but also traces of moisture, corrosion and contamination. Their consequences may appear later – during storage, installation or commissioning.
The areas where moisture and contamination can accumulate are inspected: the lower parts of the packaging, recesses, joints, flanges, fasteners and unprotected metal surfaces. Water, run marks, condensation, a breach of the moisture protection, corrosion and a change in the protective coatings are recorded.
The condition of the equipment inside the packaging is assessed separately. Condensation may appear because of a temperature difference even without water entering from outside, which is why its presence must also be reflected in the documents. For electrical and sensitive equipment such signs may require an additional technical check.
Contamination – dust, soil, oils and construction materials – is also recorded before installation work begins. After the equipment is moved or installed it becomes harder to establish when it appeared.
The main signs:
- water, run marks and condensation;
- a breach of the moisture-protective layer;
- corrosion and a change in the coating;
- contamination of the housing and the assemblies;
- foreign substances inside the accessible protective volumes;
- the condition of desiccants and other protective means.
The surveyor records the signs identified and the acceptance conditions, but does not determine the cause of corrosion or the suitability of the equipment for operation without a special examination. Such an assessment is carried out by specialist technical professionals where necessary.
Checking the completeness of the equipment
Externally undamaged equipment may turn out to be incomplete. For complex installations the absence of a small component can halt installation or commissioning, which is why completeness is checked separately from the condition of the housing.
First the number of cargo units is compared with the documents, and their numbers, marking and belonging to a specific item of equipment are checked. The contents of the accessible units are then assessed: the main assemblies, components, fasteners, cables, panels, protective elements and other items envisaged.
If the packaging has not been opened, it is necessary to state clearly which components have actually been checked and which remain inaccessible. The absence of a part should also not automatically be treated as a shortage: it may be in another cargo unit or belong to a separate delivery.
The specification, the packing list, the marking of the cargo units and the installation documentation are used for the check. Where there are discrepancies, the specific fact is recorded and the documents with which the comparison was made are indicated.
Before installation begins it is particularly important to check:
- the number and marking of the cargo units;
- the main assemblies and the components envisaged;
- the fasteners and installation elements;
- the cables, panels and protective parts;
- the technical and accompanying documentation;
- individual components supplied as separate units.
Early recording makes it possible to establish the initial completeness before the parts are unpacked, moved or handed over to the installation organisation. Subsequently this helps to distinguish a real shortage from the movement of a component within the construction site itself.
Marking and identification
On a large construction site it is easy to confuse identical units, components or cargo units. That is why acceptance begins with linking a specific object to the documents and not merely with determining its type.
The model and name, the serial or factory number, the cargo unit number, the manufacturer’s marking, the position in the specification and other individual designations are checked. If the marking is damaged, covered or missing, this is also recorded.
Where there are several identical units, the name alone is not enough. Each unit must be linked to a specific cargo unit and to the documents. The same identification is used when describing damage and in photo documentation, so that it is subsequently clear which object was inspected.
It is particularly important to compare the marking of the equipment and the packaging with the documents before unpacking and movement. If a discrepancy is found, it is recorded before further operations begin and it is clarified whether it relates to a marking error, the completeness of the set or another cause.
Correct identification creates the basis of the entire acceptance survey: it links specific equipment, its condition, its packaging, the photographs and the results of the check into a single documented picture.
Why defects must be recorded before installation begins
The start of installation changes the condition of the equipment: new mechanical effects appear, and part of the surfaces and joints becomes inaccessible. That is why the principle of acceptance is simple – first record the condition, then begin installation.
Before unpacking the marking, the packaging, its damage and the position of the cargo are recorded. After opening the equipment, the fastenings, the joints, the completeness and the accessible structural elements are checked. The defects identified are photographed and described with reference to the specific object.
It is particularly important to preserve the initial picture if several contractors will work with the cargo. Unloading, movement, unpacking and installation may be carried out by different organisations, and without an initial recording it is considerably harder to establish when new damage appeared.
An acceptance survey creates a documented reference point: which equipment arrived, in what packaging, with what completeness and in what condition. It does not automatically establish the cause of the damage or the party responsible, but it provides a factual basis for subsequent analysis.
The optimal sequence is as follows:
- Identification – marking, serial numbers, cargo units and documents.
- Inspection of the packaging – general appearance, damage, marking and position of the cargo.
- Inspection of the equipment – accessible surfaces, joints, fastenings and supports.
- Check of completeness – comparison of the actual presence with the documents.
- Recording of defects – photographs, description and the necessary measurements.
- Assessment of the need for diagnostics – referral of the signs identified to specialist professionals.
- Control before installation – verification that substantial remarks are reflected in the documents.
If, after the survey, the equipment has been moved, dismantled or subjected to other changes, an additional recording may be required. Such an approach makes it possible to separate the condition of the cargo on arrival from the changes that occurred during storage, unloading or installation.
LVS Global arranges surveys on acceptance of equipment at construction sites, including inspection of the packaging and the cargo, verification of identification and completeness, photo documentation of damage and preparation of reporting materials. If you need to record the condition of equipment objectively before installation begins and to identify potential problems immediately after delivery, please contact us – we will be glad to help!
