Spearhead HD250F, Handbook

Page: 35 / 42

8999123: v1 18/06/2018
Page 6.1 of 6.1 pages Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
6 Troubleshooting
If the flail mulcher malfunctions, search the causes and the solution of the problems in the following table:
PROBLEM CAUSE REMEDY
Excessive grinding of the product
to be cut Flail mulcher too low
Slightly raise the flail mulcher
from the ground, adjusting the
height
Forward speed too slow Increase the advancing speed
Scarce grinding of the product
to be cut
Flail mulcher too high
Slightly lower the flail mulcher
from the ground, adjusting the
height
Forward speed too high Reduce the advancing speed
Terrain too wet or muddy Wait for the terrain to dry
Clogging of the rotor and grinding
sieve
Terrain too wet or muddy Wait for the terrain to dry
Flail mulcher too low
Raise the flail mulcher from the
ground
Forward speed too high Reduce the advancing speed
Drop in rotor speed Belt overheating Adjust belt tension
The flail mulcher bounces on the
ground or vibrates
Foreign bodies stuck between
the Widia teeth
Clean the rotor and teeth
Widia teeth mounted incorrectly,
without the helical layout or
with the edge penetrating the
terrain
Check and re-install the teeth
Worn or broken teeth Replace the teeth
Deformation of the rotor due to
foreign bodies having hit the
central part
Replace the rotor. Contact the
Spearhead service centre
Roller support bearing seizure No oil lubrication Verify oil level