Spearhead ROLLIFLAIL 150, Operator'S Instruction Manual

Page: 48 / 53

8999118EN: v1.1 21/12/2020
48
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
10 Trouble Shooting
Trouble shooting
– Flail mower issues
Symptom Possible cause Remedy
10.1 Irregular cut
a) Worn, bent or broken flails Replace flails immediately
b) PTO Input speed too low
Check PTO input speed and increase
to maximum indicated.
c) Machine is not level to the
ground
Level the machine. Check the roller
function and condition.
d) Clogged material due to
excessive ground speed
Reduce tractor speed over ground and
check correct PTO input speed.
10.2 Machine noise
a) Loose bolts Check and tighten.
b) Damage to cowl structure or
cracks
Repair cowl in specialised workshops
or replace.
c) Vibration See vibration below
10.3 Gearbox noise
a) Lack of oil Fill to level
b) Worn gears Replace gears
c) Worn bearings Replace bearings
10.4
Vibration
–
Investigate quickly!
a) Lost flail(s)
Replace any missing flails in opposed
pairs immediately
b) Broken or worn flails
Replace flails in opposed pairs
immediately
c) Bent or Unbalanced rotor
Replace rotor or contact Spearhead
shaft reconditioning service.
d) Worn rotor bearings Replace in authorised workshops.
e) PTO speed too high
Reduce PTO speed to the correct
operating speed
10.5 Premature flail wear Flails touching the ground Adjust the height of cut using the roller
10.6 Excessive backlash Worn pins
Check pin hole condition, replace pins
in joints.
10.7 Roller breakage Violent impact with ground
Lower the machine gently to the
ground. Inspect damage. Replace or
repair in authorised workshops.
10.8 Bearing function poor
a) Damage due to violent impact
with ground
Replace in authorised workshops.
Always lower machine gently.
b) Wear due to lack of lubrication
Replace in authorised workshops.
Follow grease maintenance schedule
10.9 Belts overheating
a) Belts slipping on pulleys Check and adjust belt tension.
b) Flail touching ground Adjust the height of cut using the roller
c) Working speed unsuitable for
the material to be cut
Reduce tractor speed over ground and
check correct PTO input speed.
10.10
Poor cutting
performance
a) Flails worn out
Replace blades once the performance
has dropped below an acceptable level
10.11
Poor power
transmission
b) Drive belts slipping - low belt
tension
Check and adjust belt tension
c) Drive belts slipping - check for
wear and or oil on drive belts
Replace when worn/oily and or
shredded
10.12
Rotor continually
stalls
a) Forward cutting speed too fast Reduce forward cutting speed
b) Cutting too close to the
ground
Lower the roller to cut less. For shorter
cut make more than one cut.
c) Wrong PTO speed
If PTO speed is too low then the cutting
inertia is reduced. Increase PTO rpm
to correct cutting speed.
d) Belts slipping- low belt tension Check and adjust belt tension
e) Belts slipping
– oil on belts or
belt wear
Replace when worn/oily and or
shredded