PROBLEM
THE BLADES
CANNOT BE PUT
INTO MOTION
THE BLADES STOP
WITH A DELAY
EXTREME
VIBRATIONS ARE
GENERATED WHEN
THE MOWING DECK
DRIVE IS ENGAGED
MOWING HEIGHT
CAN'T BE SET
MOWING DECK PROBLEMS (continued)
POSSIBLE CAUSES
One of the mowing blade drive
belts is worn out or damaged.
Damaged spring of the tensioning
mechanism
A foreign object is preventing the
movement of the blades
Electromagnetic clutch is not
engaging
The drive belts are insufficiently
tensioned
Incorrectly functioning
electromagnetic clutch
Damaged blades
Damaged blade drive belts
Fault of the universal gear
Incorrectly functioning
electromagnetic clutch
Damaged engine belt pulley
Remove the accumulated material
from the underside of the mowing
deck
Engine mount fault
The drive belt is insufficiently
tensioned
Malfunction of the electrical
system
Moisture in the electrical system.
There is a foreign object in the
mowing deck
Check the condition of the belts and
replace them if necessary. If they are
loose, tension them.
Check the condition of the spring of the
tensioning mechanism and replace it if
necessary.
Check whether the movement of the
the blades is not prevented by a foreign
object. If yes, remove the foreign object.
Inspect the clutch and wear and tear.
Check the electrical system.
Check the tension of the drive belts and
tension them if necessary.
Check that the electromagnetic clutch
disengages properly. If the clutch is not
working properly have it replaced or
repaired at an authorised service centre.
Check the blades and ensure that they
are straight, unbent and balanced. In the
event of deformation, replace them.
Check that neither of the belts has
burned areas or irregularities, which
could cause the vibrations. If the belt is
damaged, replace it.
Check that the universal gear is correctly
mounted and tightened.
If the universal gear is bent or damaged,
replace it.
Check that the electromagnetic clutch
switches properly. If the clutch is not
working properly have it replaced or
repaired at an authorised service centre.
Check the inside surface of the pulley on
the engine. If it is coarse or has cracks, it
is necessary to replace the pulley.
Check whether grass has accumulated
on the underside of the mowing deck. It
is necessary to remove this grass.
Check that the engine mounting bolts are
pulled tight. Tighten bolts or replace as
necessary.
Check belt tension. Replace it if
necessary.
Check the electrical system
Check the fuse.
Malfunction of the mowing height
adjustment knob.
Malfunction of the lifting actuator, replace
with a new one.
Allow the electrical system to dry out
thoroughly.
Check and remove foreign objects from
the lifting mechanism and mowing deck.
157
REMEDY