JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED

DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597
6.5 Breakdowns and solutions
6.5.1 Main types of failure or breakdowns and possible solutions
§ In the columns of the table that follows the main conditions of bad functioning are shown, which can be
reasonably foreseen and the type of problem, the potential cause of the breakdown and possible
solutions.
Type of failure
Rotation is blocked
Difficult rotation
Instability of the positioning
of the arm
Possible causes of breakdown
• a foreign body has entered the
rotation
• seizure of the bearings
• scant lubrication of the bearings
• excessive leaning of the rotation
axis
6.5.2 Authorised staff for intervention in case of breakdown
56
Possible solution
• remove the foreign body
• replace the bearings
• lubricate
• check the verticality of the crane and the
clamping of the fixing system
The staff authorised to intervene in most cases of breakdown, or where not indicated differently, are
expert maintenance people or trained with a specific preparation on mechanical and electrical parts.
Where shown, however, the intervention of specialised suitably-trained staff or the technical staff of the
manufacturer is necessary
6.5.3 Putting out of service
§ If the jib crane cannot be repaired, proceed to the putting out of service operations, signalling the
breakdown with a sign; request the intervention of the assistance service.
6.6 Dismantling, disposal and scrapping
If the jib crane or its components, whether broken, worn out or at the
end of their designated life, should no longer be usable nor
repairable their demolition must be carried out.
•The demolitiion of the jib crane must be carried out using suitable equipment chosen according to the
nature of the material on which to intervene (e.g.: shears, oxyhydrogen flame,saw, etc...)
•All the components must be dismantled and scrapped having been reduced to small pieces so that none
of them can reasonably be used again.
•When the jib crane is scrapped their parts must be disposed of taking into account the different nature of
them (metals, oils and lubricants, plastic, rubber, etc.) using possibly specialised companies and in any
case according to what the relevant law requires regarding solid industrial waste.
Do not try to use again parts or components of the jib crane which look intact but, after
checks and/or replacements carried out by specialised staff, or by the manufacturer
itself, have been declared no longer fit for use