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7.3 Self-diagnosis table
If any of the following problems occur, refer to the instruction manual and take appropriate action.
Phenomenon
The grass is wet.
The grass is long.
The grass is not
The cutting height is low.
discharge well
The engine speed is low.
Working speed is fast.
Working speed is fast.
The engine speed is low.
There is left uncut
Worn or damaged Blade.
part.
Accumulation of grass debris in the Blade cover.
The grass is long.
Mow the grass in the falling
The cutting height is low.
The turning speed is fast.
Soil cutting occurred.
The terrain has undulations.
There are many undulations on the terrain.
Bending of the blade.
Belt tension is low.
There is a foreign object inside the Blade
Belt slips.
Accumulation of grass on pulley.
Belt wear out.
Wear of Blade brake shoes
Blade does not stop
within 5 seconds
Misaligned Blade brake
The Blade is out of balance
damage of the Blade
Accumulate of grass on knife neck
Vibration is large.
Knife shaft is bent
Damaged knife belt
Bending the knife stay
A mixture of old and new Blades
Low engine speed
Work speed is fast
Mowing workload
Wrapping grass around the knife
is large
Long grass
Low cutting height
The diff lock is in the "off" position
Tire slips and does not
go straight
The field is weak
Not stop the shift lever
The neutral "N" position of the shift lever is
in the "N" position
misaligned
Insufficient tension on the driving belt
Reduced climbing
Lack of HST oil, deterioration, mixing of
power
air/water
Lack of HST oil
The unit does not
HST hose disconnection and tear
move even if the
Parking brake is not released
change pedal is
Driving clutch lever is in the "off"
operated
Brake shoe wear
Oil comes in the brake drum
Parking brake is
Water comes in the brake drum
not effective
Tire wear
Cause
direction
position
Treatment
Work after the grass has dried.
Increase the cutting height and cut twice.
Increase the cutting height.
Set to the maximum speed.
Reduce working speed.
Reduce working speed.
Set to maximum RPM.
Replace with a new Blade.
Clean the inside of the Blade cover.
Mowing twice.
Change the mowing pattern (mowing direction).
Increase the cutting height.
Reduce the turning speed.
Change the mowing pattern (mowing direction).
Increase the cutting height.
Replace with a new Blade.
Adjust the belt tension.
Clean inside the Blade cover.
Clean the pulley.
Replace with a new belt.
Replace Blade brake
Adjust Blade brake
Fix the Blade (Both side Blade)
Replace with new blade or fix it
Clean the inside of the knife neck guard
Replace knife shaft
Replace with a new belt
Replace knife stay
Do not mix old and new blades
Increase engine speed
Slow down workspeed
Clean the knife shaft
Increase the cutting height and cut twice
Increase the cutting height
Set the diff lock to the "on" position
Stop working until the field is dry
Adjust the neutral "N" position with the turnbuckle
of the shift lever
Tension or replace driving belt
HST oil replenishment, replacement, air bleeding
Replenishing HST oil
Attach hose, replace damaged product.
Release the parking brake
Driving clutch lever move in "ON" position
Brake shoe replacement
cleaning and replacing the oil seal
Turn on/off the brake and dry the inside of the
drum.
Replace tires
7. 点検表
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