Dolmar MH-2556 Storage, Maintenance Schedule, Troubleshooting, Drain fuel Humidity

Models: MH-2556

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STORAGE

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.

Drain fuel

Humidity

MAINTENANCE SCHEDULE

General

Engine

Check general condition and safety

 

Screws, nuts, bolts

Visually check for damage

 

 

Confirm that screws, nuts and bolts are secure

 

 

 

After refueling

Throttle lever

Check functioning

 

Lock-off lever

Check functioning

 

STOP switch

Check functioning

 

 

 

Daily

Air filter

Clean

 

Cooling air duct

Clean

 

Cutting tool

Check for damage, confirm sharp

 

Idling

Confirm that the cutter blades are not in motion

 

 

 

Every 20 hours

Gearbox

Add grease

 

 

 

Weekly

Spark plug

Check, replace if necessary

 

Muffler

Check, clean outlet if necessary

 

 

 

Quarter annually

Fuel filter

Clean or replace, if necessary

 

Fuel tank

Clean inside

 

 

 

Before extended storage

Fuel tank

Drain tank

 

Carburetor

Keep engine running until fuel runs out

 

 

 

TROUBLESHOOTING

Problem

System

 

 

Engine does not start or

Ignition

difficulty starting

 

Fuel supply

Compression

Mechanical

Warm start problems

Engine starts but stalls

Fuel supply

immediately

 

Poor performance

Several systems may

 

be affected

 

simultaneously

 

 

Observation

Cause

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 available

Wrong choke setting, defective carburetor, fuel filter

 

contaminated, broken or bent fuel hose

Inside engine

Defective cylinder gasket, damaged crankshaft

 

seals, defective piston and/or cylinder rings

Outside engine

Loose spark plug

Starter not functional

Defective starter spring, mechanical defect inside

 

engine

Fuel available

Carburetor contaminated (have carburetor cleaned)

Ignition functioning

 

Fuel available

Incorrect idling adjustment, carburetor or fuel filter

 

contaminated

 

Defective fuel tank vent, broken fuel hose, defective

 

STOP switch (loose contact, etc.)

Engine idling

Contaminated air filter, carburetor contaminated,

 

clogged muffler, clogged cylinder exhaust duct

 

 

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Dolmar MH-2556 instruction manual Storage, Maintenance Schedule, Troubleshooting, Drain fuel Humidity