101
Rev. 5.1
ZMT-ZMTE
TROUBLE SHOOTING
09-TROUBLESHOOTING (Generale)
PROBLEMS PROBABLE CAUSE REMEDIES
Vibrations
Broken, worn or missing ails Replace the ails
Unbalanced ail holder shaft
Check rotor balancing and have repairs
or replacements made in authorised Ferri
workshops
Worn ail holder shaft bearings Have it replaced in specialised workshops
Moving parts unbalanced
Identify the part responsible for the problem
(unbalanced rotor, defective bearing, broken or
missing ail, etc.) and have it repaired or replaced
at authorised Ferri workshops
Couplings at the two ends of the
PTO shaft out of parallel alignment
Check the coupling of the machine to the tractor
and check the adjustments
Flails blocked Stop the machine and free them
Plant waste or foreign objects
wrapped around the rotor shaft and/
or the cutting ails or encrustation
visible on the cutting tools or
supports
Remove waste/foreign objects or
replace cutting tools (in this case,
a l w a y s r e p l a c e o p p o s i n g p a i r s ) .
Clean the rotor and the cutting ails
Loose bolts
Check and correct the tightening of screws and
nuts if necessary
Rotor anges not perfectly adherent
to the walls of the machine.
Deformed machine side panels
Check the conditions of the machine side panels
and repair if necessary. Check the correct
assembly of the anges and the tightening of the
screws
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