User's Manual

15
NO!
OK
Fig.3
Allen screw (143) (if necessary, you can heat the 143 screw with a hairdryer)
When taking the pin (136) out, you can recover all hammers and all spacers. Before
you rotate or replace the hammers, please check the surface condition of the pins
(136, picture 3) and, if necessary, replace them.
Do the same for the other three rows, too. Eventually you can assemble everything
back together following the assembly chart of the rotor carefully (picture 4)
A wrong assembly of the hammers and of the spacers
will cause harmful vibrations.
When replacing damaged parts, please use original spare
parts only. They have to be marked with the name of the
manufacturer. The operator will easily find these original
spare parts at the constructing company NEGRI
MARCO.
In case the blades have been subjected to heavy impacts or blows, a technician must
test them.