BEFCO D90-060, Operator'S Manual

Page: 34 / 60

6 - TROUBLESHOOTING
WARNING: Be sure tractor engine is off, parking brake is locked, and key is
removed before making any adjustments.
Use a siphon pump to drain excess oil out
of gearbox. Gearbox overfilled. Oil blowing
out of
gearbox
breather cap.
Replace blades.
Grass is too high. Cut in two passes at a
slower ground speed.
Set tractor throttle for 540 rpm.
Level shredder with tractor hitch arms.
Clean rotor.
Worn, broken or bent blades.
Grass not being picked up after
tractor tires tracks.
Shredder not running at rated PTO
rpm.
Shredder not level.
Wrapping or material buildup. Striping or
windrowing.
Tighten hardware.
Back off tractor rpm to 540.
Fill to proper level. Loose components.
Excessive rpm.
Low oil in gearbox. Noisy
shredder.
Replace blades.
Set tractor throttle for 540 rpm.
Remove object.
Balance rotor.
Worn, broken or bent blades.
Shredder not running at proper
PTO speed.
Object wrapped around rotor.
Rotor out of balance. Shredder
vibrates.
Raise the cutting height. The cutting height is too low. Excessive
blade wear.
Tighten belts.
Raise shredder, shift to lower gear, make
two passes over grass. Mow grass high 1
st.
pass, 2
nd.
pass cut to desired height.
Belts slipping due to loose belts.
Belts slipping due to high grass. Belts squeal.
Remove wrappings.
Allow grass to dry.
Raise shredder, shift to lower gear, make
two passes over grass. Mow grass high 1
st.
pass, 2
nd.
pass cut to desired height.
Increase tractor rpm, check engine and
PTO speeds.
Wrappings around rotor.
Wet grass.
Grass too high.
Tractor rpm too slow.
Grass not cut
and/or bent
over.
Roller is not in the same adjustment hole
pattern.
The tractor lift arms are not lifting equally.
Change blades.
Adjust belt tension. Machine not parallel to the ground.
Blades are worn or bent.
Loose belts.
Uneven
cutting.
SOLUTION POSSIBLE CAUSE PROBLEM
T
ROUBLESHOOTING
34
BEFCO
D
ESTROYER
D90 O
PERATOR
’
S
M
ANUAL