4.3 Replacement of the tool
Coupling of a new tool
Fit the tool end (the one having the retainer flat/flats) into the guide, manually.
Two operators can be necessary if the weight is more than 30 kgs (check the weight
into the technical specifications).
Then push from the other side and fit the tool completely into the guide. Rotate it so that its
milled side sets parallel to the pin guide. Insert the retainer pin for tool.
Before replacing the tool, it is necessary to wear gloves because it overheats
during the use.
Place the hammer vertically, touching
the ground and lift it of a few
centimetres so that the boom of the
excavator supports the weight of the
hammer, but with the tool still touching
the ground.
Get off the excavator, after blocking the hydraulic system.
Check the weight of the pin in the technical
Catch on the prominent part with your gloves
and place the pin on the ground.
Get on the excavator again and unblock the
hydraulic system.
Lift the hammer vertically until the damaged
tool slips off.
Place the hammer horizontally on the ground
and the tool lined up before it.
Grease well the part that must get into the
With a lever, press the retaining pin (A)
towards the right side to unlock the tool
retainer.
Remove the tool retainer (B).
With a lever, press the retaining pin (C)
towards the left side to unlock the tool
retainer.
Remove the tool retainer (D).
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