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22. TROUBLESHOOTING
The following table illustrates some problems which may arise during operation.
FAULT
Grass ejection insufficient
Machine does not cut the grass
completely
Machine scalps the ground
Belt slips
Machine vibrates excessively
Engine overloads during work
operations
Machine tends to run away on
steep banks
The
cutting
unit
objects outwards
CAUSE
1. Grass wet
2. Grass too long
3. Cutting height too low
4. Engine speed too low
5. Forward speed too high
6. Build-up of grass inside flail
housing
1. Forward speed too high
2. Engine speed too low
3. Grass too long
4. Flails worn or broken
5. Build-up of grass inside flail
housing
1. Cutting height too low
2. Undulating terrain
3. Ground uneven
1. belt tension inadequate
2. Build-up of grass inside flail
housing
3. Belt worn
1. Build-up of grass inside flail
housing
2. Belt damaged
3. Flails bent or broken
4. Flail rotor warped
1. Engine speed too low
2. Flails worn
3. Forward speed too high
4. Snarl or build-up of grass
on rotor
5. Grass too long
6. Cutting height too low
1. ground too soft
2. operator cutting at right
angles to bank
projects
1. front guard raised
2. front cover open
3. working in reverse gear
MEASURES TO BE TAKEN
1.
Wait until the grass has
dried
2.
Go over the grass twice,
changing the cutting height
3.
Increase the cutting height
4.
Accelerate to maximum
5.
Decrease forward speed
6.
Clean the inside of the flail
housing
1.
Decrease forward speed
2.
Accelerate to maximum
3.
Go over the grass twice,
changing the cutting height
4.
Replace the flails
5.
Clean the inside of the flail
housing
1. increase the cutting height
2. change
(e.g. direction)
3. increase cutting height
1. Adjust the belt tension
2. Clean the inside of the flail
housing
3. Replace belt
1. Clean the inside of the flail
housing
2. Replace belt
3. Replace flails
4. Replace rotor
1. Accelerate to maximum
2. Invert or replace flails
3. Decrease forward speed
4. Remove grass from flail
rotor
5. Go over the grass twice,
changing the cutting height
6. increase the cutting height
1. wait until ground dries
2. work in direction of bank
1. lower the front guard
2. close front cover firmly
3. only work in forward gear
- 67 -
cutting
pattern
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