Mower Troubleshooting - Kubota Z412KW Operator's Manual

TROUBLESHOOTING

MOWER TROUBLESHOOTING

Symptom (if)
Blades do not rotate.
Mower belt slipping.
Discharge deflector plugged.
Streaking of grass uncut.
Uneven cut.
Blades scalping grass.
Excessive vibration.
Mower loads down machine.
84
Cause
• The PTO system is not normal:
PTO system malfunctioning.
• The PTO system is normal:
broken mower belt.
• Weaken tension spring.
• Worn mower belt.
• Mower plugged.
• Debris in pulleys.
• Grass too wet.
• Grass too long.
• Cutting too low.
• Engine rpm too low.
• Ground speed too fast.
• Ground speed too fast.
• Engine rpm too low.
• Grass too long.
• Blades dull or damaged.
• Debris in mower deck.
• Mower deck not level.
• Ground speed too fast.
• Blades dull.
• Blades worn or damaged.
• Low tire inflation.
• Anti-scalp rollers not adjusted correctly.
• Wheels pressure not adjusted correctly.
• Cutting height too low.
• Turning speed too fast.
• Ridges in terrain.
• Rough or uneven terrain.
• Anti-scalp rollers not adjusted correctly.
• Bent blade(s).
• Debris on mower deck or in pulleys.
• Damaged mower belt.
• Damaged pulleys.
• Pulleys out of alignment.
• Blades out of balance.
• Engine rpm too low.
MOWER TROUBLESHOOTING
Remedy
• Consult your local KUBOTA Dealer.
• Replace.
• Replace.
• Replace.
• Unplug and clean the mower deck.
• Clean.
• Wait for grass to dry.
• Raise the cutting height and cut grass twice.
• Raise the cutting height.
• Mow at full throttle.
• Slow down.
• Slow down.
• Mow at full throttle, check and reset the engine
rpm.
• Cut grass twice.
• Replace blades or have blades sharpened.
• Clean the mower deck.
• Level the mower deck.
• Slow down.
• Have blades sharpened.
• Replace the blades.
• Add air to correct pressure.
• Adjust the anti-scalp rollers.
• Set both tire pressure to the correct pressure.
(See TIRES on page 46.)
• Raise the cutting height.
• Reduce speed on turns.
• Change the mowing pattern.
• Adjust wheels pressure and anti-scalp rollers.
• Adjust wheels pressure and anti-scalp rollers.
• Replace blade(s).
• Clean the mower deck and pulleys.
• Replace the mower belt.
• Replace pulleys.
• Check pulleys.
• Have blades balanced.
• Mow at full throttle, check and reset the engine
rpm.
Z412KW,Z422KW,Z422KWT,Z411KW,Z421KW,Z421KWT
(Continued)