Dolmar MH-2556 User Manual download pdf (Page 17)

STORAGE

If the pole hedge trimmer is to be stored for an extended period of time, proceed

as follows:

- Drain all fuel from the tank and carburetor.

- Remove the spark plug and add a few drops of two-stroke oil through the spark

plug hole. Gently pull out the starter rope to ensure that the oil is evenly

distributed inside the engine. Replace and tighten the spark plug.

- Clean the entire pole hedge trimmer and apply a thin layer of oil to the metallic

surfaces of the machine. Secure and protect the blades with the blade cover

provided. Store the pole hedge trimmer in location that is free of humidity.

MAINTENANCE SCHEDULE

TROUBLESHOOTING

General

Engine

Screws, nuts, bolts

Check general condition and safety

Visually check for damage

Confirm that screws, nuts and bolts are secure

After refueling

Throttle lever

Lock-off lever

STOP switch

Check functioning

Daily

Air filter

Cooling air duct

Cutting tool

Idling

Clean

Check for damage, confirm sharp

Confirm that the cutter blades are not in motion

Every 20 hours Gearbox Add grease

Weekly

Spark plug

Muffler

Check, replace if necessary

Check, clean outlet if necessary

Quarter annually

Fuel filter

Fuel tank

Clean or replace, if necessary

Clean inside

Before extended storage

Fuel tank

Carburetor

Drain tank

Keep engine running until fuel runs out

Problem System Observation Cause

Engine does not start or

difficulty starting

Ignition Ignition spark is present Problem with fuel supply or compression system,

mechanical defect

No ignition spark STOP switch in OFF-position, broken wire, defective

spark plug or connector, defective ignition module

Fuel supply Fuel available Wrong choke setting, defective carburetor, fuel filter

contaminated, broken or bent fuel hose

Compression Inside engine Defective cylinder gasket, damaged crankshaft

seals, defective piston and/or cylinder rings

Outside engine Loose spark plug

Mechanical Starter not functional Defective starter spring, mechanical defect inside

engine

Warm start problems Fuel available

Ignition functioning

Carburetor contaminated (have carburetor cleaned)

Engine starts but stalls

immediately

Fuel supply Fuel available Incorrect idling adjustment, carburetor or fuel filter

contaminated

Defective fuel tank vent, broken fuel hose, defective

STOP switch (loose contact, etc.)

Poor performance Several systems may

be affected

simultaneously

Engine idling Contaminated air filter, carburetor contaminated,

clogged muffler, clogged cylinder exhaust duct

Drain fuel

Humidity

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Dolmar MH-2556 User Manual Page 17

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