Instruction manual
Rear - front and rear flail mowers
MIDO, GRINO, VINO, MAMUT, RIO
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28
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9.
DEFECTS AND THEIR REPAIR
Malfunction
Cause
Recommendations
Mower is not
mowing or leaves
strips of uncut grass
Sliding of the belts
Adjust belt tautness using the bolt according
to the instructions
Worn-out belts - replace belts or apply belt
paste
Blocked cutting chamber,
remove all foreign material
Damaged, worn or blunt flail knives
Replace or sharpen knives
The PTO rpm are too low despite
high rpm of vehicle engine
Check PTO as a service station
Cut protection spline on flail shaft or
gear shaft
Remove and repair wheel and damaged parts
Damaged belt or intersecting angle
gear
Replace or recover the gear
Excessive vibration
during operation
Damaged or bent flail shaft
Perform repairs
Damaged bearings on the flail shaft
Replace damaged bearings on flail shaft
Loosen bolts fastening the bearing
housing on the shaft
Tighten bolts fastening the shaft or check
condition of flail shaft in a service point
Damaged or missing flail knives
Check condition and replace if necessary
Shifting catch is not
shifting
Mower not properly mounted on
tractor
Check quick couplings for condition and
connection
Damaged or soiled fasteners in
hydraulic assembly
Replace or clean fasteners in hydraulic
assembly
Soiled or damaged shift sleeves
Clean or replace sleeves
Leaking cylinder
Contaminated oil in the tractor's
hydraulics
Replace oil in hydraulics (recommended oil
purity class acc. to NAS 1638 is 9 -10).
Provide brand new cylinder repair kit and
replace worn gaskets
Damaged bearing sealing
Replace sealing or the whole cylinder
Excessive heating of
the angle gear
Damaged bearings
Repair or replace the gear
Inadequate oil level
Check oil level and if needed refill or remove
excess amount
Loud angle gear
operation
PTO shaft tool long
Replace shaft in the gear or shorten PTO shaft
Damaged or worn bearings on the
gear
Replace bearings
No oil in the gear
Refill oil
