Troubleshooting - Makita PLM4630N Original Instruction Manual

12. TROUBLESHOOTING

PROBLEM
Engine does not start.
Engine difficult to start or
loses power.
Engine operates erratically.
Engine idles poorly.
Engine skips at high speed.
Engine overheats.
Mower vibrates abnormally.
13. 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
Makita declares that the following machine(s):
Designation of Machine:
Petrol Lawn Mower
Model No. /Type: PLM4630N, PLM4631N, PLM4632N,
PLM5130N
Specifications: See "4. TECHNICAL DATA"
PROBABLE CAUSE
Throttle choke not in the correct
position for the prevailing conditions.
Fuel tank is empty.
Air cleaner element is dirty.
Spark plug loose.
Spark plug wire loose or
disconnected from plug.
Spark plug gap is incorrect.
Spark plug is defective.
Carburetor is flooded with fuel.
Faulty ignition module.
Dirt, water, or stale fuel tank.
Vent hole in fuel tank cap is plugged. Clean or replace fuel tank cap.
Air cleaner element is dirty.
Spark plug is defective.
Spark plug gap is incorrect.
Air cleaner element is dirty.
Air cleaner element is dirty.
Air slots in engine shroud are
blocked.
Cooling fins and air passages under
engine blower housing are blocked.
Gap between electrodes of spark
plug is too close.
Cooling air flow is restricted.
Incorrect spark plug.
Cutting assembly is loose.
Cutting assembly is unbalanced.
CORRECTIVE ACTION
Move throttle choke to correct position.
Fill tank with fuel: refer to ENGINE OWNERS
MANUAL.
Clean air cleaner element: refer to ENGINE
OWNERS MANUAL.
Tighten spark plug to 25-30 Nm.
Install spark plug wire on spark plug.
Set gap between electrodes at 0.7 to 0.8 mm.
Install new, correctly gapped plug: refer to
ENGINE OWNERS MANUAL.
Remove air cleaner element and pull starter rope
continuously until carburetor clears itself and
install air cleaner element.
Contact the service agent.
Drain fuel and clean tank. Fill tank with clean, fresh
fuel.
Clean air cleaner element.
Install new, correctly gapped plug: refer to
ENGINE OWNERS MANUAL.
Set gap between electrodes at 0.7 to 0.8 mm.
Clean air cleaner element: refer to ENGINE
OWNERS MANUAL.
Clean air cleaner element: refer to ENGINE
OWNERS MANUAL.
Remove debris from slots.
Remove debris from cooling fins and air passages.
Set gap between electrodes at 0.7 to 0.8 mm.
Remove any debris from slots in shroud, blower
housing, air passages.
For PLM4630N/PLM4631N: Install RJ19LMC
spark plug and cooling fins on engine.
For PLM4632N/PLM5130N: Install QC12YC spark
plug and cooling fins on engine.
Tighten blade.
Balance blade.
Conforms to the following European Directives:
2004/108/EC, 2006/42/EC, 2000/14/EC &
2005/88/EC
They are manufactured in accordance with the following
standard or standardized documents:
EN ISO 5395-1, EN ISO 5395-2, EN ISO 14982
The technical file in accordance with 2006/42/EC is
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
The conformity assessment procedure required by
Directive 2000/14/EC was in Accordance with Annex VI.
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