19 TROUBLESHOOTING
Fault
Possible cause
Control bracket not
Engine does not start
pressed down.
Petrol tap closed.
Ventilation valve in fuel
filler cap.
Fuel tank is empty.
Spark plug connector
loose.
Spark plug defective or
dirty or electrode burnt
out.
Excessive petrol supply
to engine (spark plug
wet).
Air filter dirty
Air filter soiled.
Engine power
decreasing
Ventilation valve in the
fuel filler cap closed.
Spark plug clogged with
soot.
Fuel old or soiled
Ventilation valve in tank
Engine runs irregularly
cover closed.
Air filter dirty.
Spark plug contaminated
with soot.
Pull drive control bar not
Mower does not work
pulled.
Drive speed cannot be
regulated
Extreme vibration
Cutting blade blunt.
Cut not clean,
lawn turns yellow
Cutting height too low.
Motor speed too low.
Mowing speed too high.
Insufficient overlap
between mowing lanes.
Lawn matted.
TurboSignal ignored
Ejector blocked
J + K .
Engine speed too low.
Remedy
Press control bracket to
upper part of handlebar D .
The mulched grass
Open the petrol tap A .
does not look good:
clumps, excessive cut
Open the ventilation valve in
material, coarse cut
the fuel filler cap A .
Fill fuel tank with clean and
fresh fuel.
Press on spark plug
connector or have it checked
by an authorized dealer.
Replace or clean spark plug,
set electrode gap to 0.6-0.7
mm Y .
Have it checked by an
authorized dealer.
Clean or replace air filter
insert W .
In case of faults and defects which have not been listed here, please contact the
Clean or replace the air filter
nearest authorized dealer.
insert W .
Repairs which require specialized knowledge should only be performed by a qualified
Open the ventilation valve in
expert. Your authorized dealer will naturally also be glad to help if you do not wish to
the fuel filler cap A .
perform the maintenance work described here yourself.
Have it checked by an
authorised workshop.
20 TECHNICAL DATA
Empty the petrol tank and fill
with fresh petrol.
Engine
Open ventilation valve in tank
cover A .
Clean or replace air filter
insert W .
Have it cleaned by an
authorized dealer.
Have it checked by an
authorized dealer.
Pull drive control bar G .
Have it checked by an
authorised workshop.
Have it checked by an
authorized dealer
Have it checked by an
authorized dealer
Have it sharpened and
Mower
balanced by an authorised
workshop Q .
Set higher cutting height I .
Have it checked by an
authorized dealer
Adapt mowing speed, switch
motor drive off if necessary.
If grass is long, the mowing
lanes may need to overlap
further.
A perceptible improvement
can be achieved by using a
scarifier.
Empty the collecting bag L .
Have it checked by an
authorized dealer
11
Cutting height too low
with grass too high.
Mowing speed too fast.
Grass is damp.
Cutting blade blunt.
Mulching rule ignored
(cut max. 1/3 of grass
height; the grass height
to be cut must be less
than 10 cm)
Driving speed too high.
Grass accumulation
under the mower blade.
Insufficient overlap
between mowing lanes.
Grass is damp.
Engine
Engine displacement
Engine speed
Rated input
Electrode gap
Fuel
Tank contents
Lubricating oil
Oil quantity
Housing
Cutting width
Cutting heights
Adjustable-height handlebar
Grass collector capacity
Speed
Weight
Length
Width
Height
Wheels front / rear
Bearing front
Bearing rear
Set higher cutting height I .
Adapt mowing speed, switch
motor drive off if necessary.
Allow the lawn to dry.
Have it sharpened and
balanced by an authorised
workshop.
Set higher cutting height I .
Convert mower to rear
ejection U2 + S1 and mow
lawn with high cutting height
first.
Adapt driving speed, switch
motor drive off if necessary.
Set higher cutting height I .
If grass is long, the mowing
lanes may need to overlap
further.
Set higher cutting height I .
Allow the lawn to dry.
Yamaha 4-stroke engine, MA190V
190 cm
2800 rpm
3.2 kW
0.6 - 0.7 mm
Standard unleaded fuel,
with max. 10% ethanol or max. 5% MTBE,
do not use alkylate-based petrol!
approx. 6 litres
SAE 10W30, SAE 10W40
4-stroke engine oil API service class SE
or a higher class oil
0.6 litres
Die-cast aluminium with steel inserts
540 mm
Single wheel,
15, 30, 40, 50, 60, 70, 85, 95 mm
2-way
75 litres
2,7 – 4,8 km/h
56.5 kg
1730 mm
600 mm
1050 mm
Ø 210 mm / Ø 210 mm
Deep groove ball bearing
Bronze-Sleeve bearing
3