2. - Operator's Manual
2. - Operator's Manual
2. - Operator's Manual
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1<strong>2.</strong> Causes of faults and how elimination them<br />
Fault<br />
Engine does not start<br />
Engine performance decreases<br />
Engine smokes<br />
Engine runs irregulary<br />
Mower will not move forward<br />
Strong vibrations<br />
Unclean cut, lawn is yellow<br />
Possible cause<br />
– Switch handle not pressed<br />
down.<br />
– No fuel mixture.<br />
– Fuel tap closed.<br />
– Spark plug connector loose.<br />
– Spark plug defective or dirty or<br />
electrode burnt out.<br />
– Engine getting too much fuel<br />
mixture (spark plug wet).<br />
– Air filter dirty.<br />
– Ignition defective.<br />
– Incorrect fuel mixture ratio.<br />
– Air filter dirty.<br />
– Spark plug foul.<br />
– Petrol tank dirty.<br />
– Carburettor blocked.<br />
– Cooling air paths blocked.<br />
– Air filter dirty<br />
– Incorrect fuel mixture ratio.<br />
– Ventilation valve closed<br />
– Carburettor.<br />
– Ignition system.<br />
– Governor rods.<br />
– Drive V-belt loose or torn.<br />
– Bowden cable torn or<br />
disconnected.<br />
– Engine fixing loose.<br />
– Blade loose.<br />
– Blade coupling run in<br />
eccentrically.<br />
– Blade not balanced during<br />
sharpening.<br />
– Blade blunt.<br />
– Cutting height too low.<br />
– Engine speed too low.<br />
– Lawn becomes matted.<br />
GB<br />
Remedy<br />
– Press switch handle to upper<br />
part of handlebar.<br />
– Re-fuel.<br />
– Open the fuel tap (max. 2 turns).<br />
– Press on spark plug connector.<br />
– Replace or clean spark plug,<br />
set electrode distance to<br />
0.5 mm and replace spark plug<br />
is necessary.<br />
– Have it checked by an<br />
authorised dealership<br />
– Clean or replace air filter insert.<br />
– Have it checked by an<br />
authorised dealership<br />
– Mixture ratio is 50:1; see<br />
“Filling up with fuel”.<br />
– Clean or replace air filter<br />
insert.<br />
– Use fresh fuel mixture.<br />
– Have it cleaned by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Clean or replace air filter insert.<br />
– Mixture ratio is 50:1; see<br />
“Filling up with fuel”.<br />
– Open ventilation valve<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it checked by an<br />
authorised dealership<br />
– Tighten the blade securing bolt.<br />
– Have it checked by an<br />
authorised dealership<br />
– Have it balanced by an<br />
authorised dealership<br />
– Resharpen the blade.<br />
– Adjust to higher cutting height.<br />
– Operate at max. rpm.<br />
– A lown scarifier can<br />
remedy the problem considerably.<br />
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