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4 Inspection & Maintenance
Following the recommended procedures set out in this section will help to ensure safe
operation of the FROG-XT4.
4.1 Definitions
Transfer Lift
A transfer is defined as one pickup and put down when passengers are on board, or when
the unit carries more than its tare weight.
Usage Category
This is defined by the number of transfer lifts per year. There are four different usage
categories from low to very high.
Critical Parts
These are the identified set of load bearing parts.
Competent Person
A competent person is a person who has appropriate practical and theoretical knowledge
and experience of the equipment. This will enable them to detect defects and weaknesses
and to assess their importance in relation to the safety and continued use of the equipment.
It is recommended that the competent person is sufficiently independent and impartial to
allow objective decisions to be made.
Non-Destructive Testing
Although not considered necessary, some operators choose to carry out non-destructive
testing prior to any re-installation of a critical part.
If this is done, then a dye penetrant test should be used, as any other tests may produce a
false positive.
4.2 Care in use / Preventative maintenance
All components in the FROG-XT10 are designed for purpose and selected to be as durable as
possible for their specific function. However, operational and storage environments can
propagate deterioration if the equipment is not kept in good condition. Factors causing of
deterioration can include:
▪ UV
▪ Sea Spray
▪ Dirt
▪ Humidity/
▪ Grease and chemical
▪ Radiated heat
▪ Wind
▪ Handling and operational damage.
▪ Sea water with high chlorine
content
▪ High/ Excessive vibration
▪ Mould growth
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