Behlen 80110060YEL User Manual
Page 13
PROBLEM
POSSIBLE CAUSE
POSSIBLE REMEDY
Blade is
scalping
ground
1. Mower too low.
Raise mower-reset tail wheel and 3 Point
control stop.
2. Field is ridged.
Cut field at a different angle.
3. Field is too wet.
Stop and wait until it is drier.
Mower will not
cut. (Shear
bolt drive
only)
Shear bolt sheared.
Install new shear bolt. Use Grade 2 ONLY.
Mower moves
from side to
side when
cutting
Loose tractor sway chains or bars, or
sway blocks improperly installed.
Adjust sway chains, bars, or sway blocks.
PTO contacts
cutter front
frame when
raised
Raising mower too high or incorrect
adjustment of tractor top link.
Adjust top link or tractor lift stops. (see
attachment instructions).
Blade bolts
come loose
1. Bolts not tightened.
Tighten bolts to 350 ft./lb.
2. Bolt hole elongated or oversized.
Replace blade carrier.
3. Blade bolt threads are worn or
damaged.
Replace blade bolt, lockwasher, and nut.
Blade wears
too fast
1. Cutting in sandy conditions.
Increase cutting height.
2. Cutting in rocky conditions.
Increase cutting height.
3. Blades hitting ground.
Increase cutting height.
Mower seems
to require
excessive
power
1. Advancing into grass or brush too
rapidly.
Reduce forward travel speed.
2. Hitting ground.
Raise mower and reset tailwheel.
3. Worn or dull blades.
Sharpen or replace blades.
4. Tractor not large enough.
Use more horsepower tractor.
Excessive
vibration
1. Check gearbox bolts.
Tighten if loose.
2. Check for loose nuts on bladeholder
and blades.
Tighten if loose.
3. Check for bent output shaft. If shaft is
bent, oil will normally leak from
bottom seal.
Replace shaft if bent.
4. Check to see if blades are
free-swinging.
Free blades so they swing.
5. Check for even wear on each blade
tip. Were both blades changed at
the same time?
Weigh blades. Weight should be within 1 oz. of
each other. Always replace both blades.
6. Blade broken.
Replace blades, in sets.
7. Blade beam bent.
Replace blade beam.
8. New blade or bolts matched with
worn blade or bolts.
Replace blades or bolts in sets.
F-20861
1-12-11