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• Check if the ball valves and valves are in the correct position.
• Check if the connecting pins between the excavator and the sorting grab are well secured, as well
as the wedge and the security pin of the quick release hitch system.
• Ensure that the hoses have the correct length and are at no risk of interfering with any of the moving
parts. Make sure they cannot wear or damage from contact with the grab or material that is moved
by the grab.
3.5. Safety indications relating to maintenance of the attachment
• Maintenance must only be performed by qualified personnel. Unauthorized and/or unqualified
personnel may not adjust or repair the attachment.
• Use the most suitable tools for the tasks required.
• All adjustments, maintenance, repair or cleaning must be performed while the operating machine’s
engine is off, the attachment must be stably supported on the ground and there must be no residual
hydraulic pressure. Any residual hydraulic pressure must be released by opening and closing
the attachment several times while the engine is off and while depressurising the oil tank. All
maintenance operations must be marked on the card in the cabin.
• When cleaning, assembling, disassembling, performing maintenance and transporting, ensure that
the attachment is perfectly stable and lock it with the pins provided to prevent it rotating (if present).
All moving parts must be secured by external constraints (such as slings or supports).
• All service operations on the rotation slew ring must be performed by a specialized technician
equipped with a torque wrench for tightening the screws.
• For the hydraulic connections, only use hydraulic hoses and fittings that conform to the SAEJ517 or
DIN20066 standards for the specified pressures. Failure to observe the above could compromise
the safety of the attachment.
• Always check the hoses are intact and that they have not been damaged in any way. If necessary,
ensure they are replaced immediately. Search for leaks using small pieces of paper or cardboard
and never with fingers to avoid injuries to the skin due by high pressure oil.
• The oil can reach very high temperatures. Before performing any service on external surfaces, wait
for them to completely cool.
• Never perform hasty or makeshift repairs that could compromise the correct operation of the
attachment. If in doubt, always request service by specialized personnel.
• It is forbidden to perform checks and/or replace parts during operation.
• All checks and maintenance that require the removal of the safety protections shall be performed
entirely at the user’s risk. Therefore, we recommend that such operations be performed exclusively
by specialised and authorised technicians.
• In the case of operations or repairs that need to be performed in positions that are not directly
accessible from the ground, use ladders or lifting devices that are safe and that conform to national
safety regulations.
• In the event of repairs near or below the attachment, make sure that there are no moving parts
that can start working and that parts that are unstable by nature are not positioned on or near the
attachment; always block them using adequate tools.
• Unless expressly specified by this manual, do not repair or adjust the attachment (or parts of it)
during operation, in order to avoid being hooked by moving parts.
• Wear personal protective equipment whenever the attachment is in use, or when working in its
vicinity.
• Only use original spare parts to replace worn parts.
