Storage; Fault Location - Dolmar ME-246.4 Instrucciones De Manejo

STORAGE

WARNING: When draining the fuel, be sure to stop the engine and confirm that the engine cools
down.
The engine is still hot just after stopping the engine. Wait until it cools down,
otherwise it may cause burns or fire.
When the machine is kept out of operation for a long time, perform the
followings:
- Drain up fuel from the fuel tank and carburetor according to the following
procedure:
1) Remove the fuel tank cap, and drain fuel completely. If there is any foreign
matter remaining in the fuel tank, remove it completely.
2) Pull out the fuel filter from the refill port using a wire.
3) Push the primer pump until fuel is drained from there, and drain fuel
coming into the fuel tank.
4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap.
5) Then, continue to operate the engine until it stops.
- Drain up the chain oil.
- Remove the saw chain and the guide bar.
- Clean the guide groove of the guide bar.
- Lubricate slightly on the saw chain and the guide bar.
- Remove the spark plug, and drip several drops of engine oil through the
spark plug hole.
- Gently pull the starter handle so that engine oil will spread over the engine,
and attach the spark plug.
- In general, store the machine in horizontal position. If it is not possible,
place the machine as the motor unit comes below the cutting tool. Otherwise
engine oil may leak from inside.
- Always pay attention to storing the machine in a safe place to prevent
machine damage and personal injury.
- Keep the drained fuel in a special container in a well-ventilated shade.
Attention after long-time storage
- Before startup after long-time storage, be sure to replace engine oil (refer to "REPLACEMENT OF ENGINE OIL"). Oil will deteriorate while
the machine is kept out of operation.

Fault location

Fault
Engine not starting or with
difficulty
Warm start problems
Engine starts but dies
Insufficient performance
System Observation
Ignition system Ignition spark O.K.
No ignition spark
Fuel supply Fuel tank filled
Compression No compression when
pulled over
Mechanical fault Starter not engaging
Tank filled ignition spark
existing
Fuel supply Tank filled
Several systems may Engine idling poor
simultaneously be
affected
Drain fuel
Cause
Fault in fuel supply or compression system, mechanical
defect
STOP-switch operated, wiring fault or short circuit, spark
plug or connector defective, ignition module faulty
Incorrect choke position, carburetor defective, fuel supply
line bent or blocked, fuel dirty
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective or improper
sealing of spark plug
Broken starter spring, broken parts inside of the engine
Carburetor contaminated, have it cleaned
Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or STOP-switch faulty
Air filter contaminated, carburetor contaminated, muffler
clogged, exhaust duct in the cylinder clogged
25
Humidity