Operation Manual

14
13. TROUBLE SHOOTING
14. ENVIRONMENT
Should your machine need replacement after extended
use, do not put it in the domestic waste but dispose of it in
an environmentally safe way.
For European countries only
EC Declaration of Conformity
We Makita Corporation as the responsible
manufacturer declare that the following Makita
machine(s):
Designation of Machine: Petrol Lawn Mower
Model No./ Type: PLM4120, PLM4620
Specifications: See “4. TECHNICAL DATA”
are of series production and
Conforms to the following European Directives:
2006/42/EC, 2004/108/EC,
2000/14/EC & 2005/88/EC
And are manufactured in accordance with the following
standards or standardised documents:
EN836, EN ISO14982
The technical documentation is kept by our authorised
representative in Europe who is:
Makita International Europe Ltd.,
Michigan, Drive, Tongwell,
Milton Keynes, MK15 8JD, England
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Engine does not start.
Throttle choke not in the correct
position for the prevailing conditions.
Move throttle choke to correct position.
Fuel tank is empty.
Fill tank with fuel: refer to ENGINE OWNER’S
MANUAL.
Air cleaner element is dirty.
Clean air cleaner element: refer to ENGINE
OWNER’S MANUAL.
Spark plug loose. Tighten spark plug to 25 - 30 Nm.
Spark plug wire loose or disconnected
from plug.
Install spark plug wire on spark plug.
Spark plug gap is incorrect. Set gap between electrodes at 0.7 to 0.8 mm.
Spark plug is defective.
Install new, correctly gapped plug: refer to ENGINE
OWNER’S MANUAL.
Carburetor is flooded with fuel.
Remove air cleaner element and pull starter rope
continuously until carburetor clears itself and install
air cleaner element.
Faulty ignition module. Contact Makita authorised service centre.
Engine difficult to start or
loses power.
Dirt, water, or stale fuel tank.
Drain fuel and clean tank. Fill tank with clean, fresh
fuel.
Vent hole in fuel tank cap is plugged. Clean or replace fuel tank cap.
Air cleaner element is duty. Clean air cleaner element.
Engine operates
erratically.
Spark plug is detective.
Install new, correctly gapped plug: refer to ENGINE
OWNER’S MANUAL.
Spark plug gap is incorrect. Set gap between electrodes at 0.7 to 0.8 mm.
Air cleaner element is dirty.
Clean air cleaner element: refer to ENGINE
OWNER’S MANUAL.
Engine idles poorly.
Air cleaner element is dirty.
Clean air cleaner element: refer to ENGINE
OWNER’S MANUAL.
Air slots in engine shroud are blocked. Remove debris from shots.
Cooling fins and air passages under
engine blower housing are blocked.
Remove debris from cooling fins and air passages.
Engine skips at high
speed.
Gap between electrodes of spark plug
is too close.
Set gap between electrodes at 0.7 to 0.8 mm.
Engine overheats.
Cooling air flow is restricted.
Remover any debris from slots in shroud, blower
housing, air passages.
Incorrect spark plug.
For PLM4120, install RC12YC spark plug and
cooling fins on engine.
For PLM4620, install RJ19LMC spark plug and
cooling fins on engine.
Mower vibrates
abnormally.
Cutting assembly is loose. Tighten blade.
Cutting assembly is unbalanced. Balance blade.