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GB
Malfunction
Starter does not work. Starter battery flat or with low
Engine loses power.
Lawn tractor vibrates
severely.
Lawn tractor does not
move off.
Unclean cut.
Travel drive, brake,
clutch and mower
mechanism.
40
Cause
Too much fuel in engine com-
bustion chamber due to repeated
starting attempts.
charge.
Safety switch on operator's seat
does not function.
Safety switch on brake pedal
does not function.
Mower mechanism engaged.
Fuse on (+) cable of starter bat-
tery.
Grass too long or too wet.
Air filter contaminated.
Carburettor setting incorrect.
Blades severely worn down.
Ground travel speed too high.
Mower mechanism is damaged.
With hydrostat drive: no travel
drive.
Blade worn, blunt.
Incorrect cutting height.
Engine speed too slow.
Ground travel speed too high.
Different tyre pressures on the
wheels.
Help in case of malfunction
Remedy
Unscrew spark plug and dry off.
Charge the starter battery.
Sit on operator's seat correctly; switch
defective.
Press brake pedal down fully.
Switch off the mower mechanism.
Check fuse, replace if necessary.
Correct the cutting height; make clear-
ance for mower mechanism by moving
back a short distance.
Clean air filter (see operating instruc-
tions from engine manufacturer).
Have the setting checked (customer
service workshop).
Replace blades (customer service work-
shop).
Reduce ground travel speed.
Check mower mechanism (customer
service workshop).
Move bypass lever to operating position
(see chapter 6.3 "Pushing the lawn trac-
tor (10, 11)", page 33).
Renew or regrind blade. Reground
blades must be rebalanced (customer
service workshop)!
Correct the cutting height.
Set maximum engine speed.
Reduce ground travel speed.
Inflate to correct air pressure. Read off
correct tyre pressure on tyre.
Have the check performed only in a cus-
tomer service workshop!
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