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Troubleshooting
Area
Lighting
system
Malfunction
Head lamp failure
Possible cause
• Improper wiring
• Bulb is disconnected.
• Blown fuse
Corrective action
→ Connect properly.
→ Replace.
→ Replace.
Grass cutter
devices
Mown grass not discharged
well
Some grass is left unmown.
The mower cuts into the soil.
The belt slips
Extreme shaking
Cutter overloaded
• Wet grass
• Grass too long
• Mowing height too low
• Low engine speed
• High work speed
• High work speed
• Low engine speed
• Grass too long
• Wear and breakage of cutter
• Accumulation of grass on the
internal surface of the rotary
cover
• Mowing height too low
• High swing speed
• Ground contours
• Too many bumps and dips in
the ground
• Bent mowing blade
• Low belt tension
• Rotary cover clogged with
grass
• Grass accumulated in the pulley
• Worn belt
• Grass accumulated in the
rotary cover and pulley
• Damaged belt
• Damaged pulley
• Damaged blade
• Poor blade balance
• Low engine speed
• Operating speed too high
• Grass accumulating or coiling
around blade
→ Perform the operation after
grass becomes dry.
→ Mow twice with a higher mowing
height.
→ Set the mower to a higher
mowing height.
→ Set the mower to the
maximum motor speed.
→ Work more slowly.
→ Work more slowly.
→ Set the mower to the maximum
motor speed. (Check engine
speed.)
→ Mow twice.
→ Replace the blade with a new
one. (See page 40)
→ Clean the internal sur-
face of the rotary cover.
→ Set the mower to a higher
mowing height.
→ Reduce swing speed.
→ Change the moving pattern.
(mowing direction, etc.)
→ Set the mower to a higher
mowing height.
→ Replace the blade with a new
one. (See page 40)
→ Adjust the belt tension.
→Take out the jammed grass and
clean the inside of rotary cover.
→ Clean the pulley.
→ Replace the belt with a new
one.
→ Clean the rotary cover and
pulley.
→ Replace the belt with a new
one.
→ Replace the pulley with a new
one.
→ Replace the blade with a new
one. (See page 40)
→ Replace the blade with a new
one or balance the blade
properly. (See page 40)
→ Increase engine speed
to a maximum value.
(Check engine speed.)
→ Slow down operating speed.
→ Clean up blade.
