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Troubleshooting
Fault Cause Remedy
Leaves a streak
of uncut or
partially cut
grass
Blades dull or bent Replace blades
Carrier RPM too low Use correct PTO speed
Field conditions are so wet that the wheels
are pushing grass into mud
Too wet to mow. Stop operation and wait until it is drier
Ground speed too fast Reduce ground speed by shifting to a lower gear
Grass is down from previous weather
conditions
Mow in only one direction
Possible build-up materials under machine Clean the machine
Blades mounted incorrectly (cutting edge
against direction rotation)
Change blades so that cutting edge is facing correct
rotation
Material
discharges
from machine
unevenly;
bunches of
material along
with swath
Material too high and too much material
Reduce ground speed but maintain recommended rpm
at tractor PTO or make two passes over material. Raise
machine for the rst pass and lower to desired height for
the second and cut a 90 degree angle to rst pass
Grass wet
Allow grass to dry before mowing. Slow ground speed of
tractor but keep engine running at full PTO rpm. Cutting
lower will help
Gearbox
overheating
Low on lubricant Fill to proper level
Improper type lubricant Replace with proper lubricant
Excessive grass/debris build-up around
gearbox. PTO running too fast.
Remove grass, etc from machine. Lower the RPM rate
Blade is scalping
ground
Machine too low Raise machine - reset wheels
Field is ridged Cut eld at a different angle
Field is too wet Stop and wait until it is dried
Blades wear too
fast
Cutting in sandy conditions Increase cutting height
Cutting in rocky conditions Increase cutting height
Blades hitting the ground Increase cutting height
Machine seems
to require
excessive power
Advancing into grass too rapidly Reduce forward travel speed
Hitting ground Raise machine and reset wheels
Worn or dull blades Sharpen or replace blades
Excessive
vibration
Check gearbox bolts Tighten if loose
Check for loose nuts on blades Tighten if loose
Blade broken Replace blades, in set
New blade or bolts matched with worn blade
or bolts
Replace blades or bolts in sets
Drivelines not phased correctly. Implement
and tractor yokes must be in line
Phase the driveline. Replace if necessary
Noisy machine
Low oil in gearbox Check level and add oil
Loose Parts Check all bolts are fully tightened
Wrong PTO rpm rate Check PTO rate & adjust as necessary
Rotors bent/broken Replace bent or missing blades
Bent PTO shaft Check PTO shaft aligned correctly
Bent gearbox shaft Check output shaft on gearboxes are not bent
Check driveline between gearboxes is aligned
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