AL-KO LT 251 E Manual Para El Operador página 36

GB
TROUBLE SHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICING DEALER.
PROBLEM
Starter Button can not be moved
forward:
Starter will not crank the engine:
Engine turns over but does not start:
WARNING
- DO NOT ATTEMPT
TO OPERATE/OVERRIDE THE
CHOKE "MANUALLY" BY TOUCH-
ING THE CHOKE LINKAGE PARTS
LOCATED ON THE AIR FILTER SIDE.
IT WILL DAMAGE THE CHOKE.
Battery does not accept or keep the
charge:
Engine starts but will not accelerate:
Engine starts but will only run at high
speed when warm:
Engine does not reach full speed and
emits excessive smoke:
Engine starts, runs, and accelerates
but will not idle:
String will not advance:
Grass wraps around driveshaft hous-
ing and stringhead:
Spool retainer hard to turn:
Oil drips from muffler:
36
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POSSIBLE CAUSE
Need to squeeze trigger
1. Batteries are not charged.
2. Battery knobs are loose.
1. Check fuel level in the fuel tank.
2. If this is the first start of the day.
3. If refueling a hot engine that ran out of fuel.
4. Weak battery.
5. Ambient temperature below 35
(2 o and 38 o C).
6. No spark.
Battery pack needs replacing.
Carburetor requires adjustment.
Carburetor requires adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetor requires adjustment.
Carburetor requires adjustment.
1. String welded to itself.
2. Not enough string on spool.
3. String worn too short.
4. String tangled on spool.
5. Engine speed too slow.
1. Cutting tall grass at ground level.
2. Operating trimmer at part throttle.
Screw threads dirty or damaged.
1. Operating trimmer at part throttle
2. Check oil/fuel mixture.
3. Air filter dirty.
4. Carburetor requires adjustment.
C
A
B
FIG. 1
SOLUTION
Squeeze and hold the trigger before engaging the starter button.
1. Charge the batteries.
2. Tighten knobs securely.
1. Add fuel if necessary.
2. May take 15-20 seconds.
3. Wait 15-20 minutes before attempting to re-start unit.
4. Recharge battery or insert a fully charged spare battery pack.
o o
or above 100 F 5. Move the trimmer to a location with temperature within the
range and let it warm up or cool down for a while. Retry.
6. Check Spark. Remove spark plug. Reattach the spark plug
wire and lay spark plug on metal cylinder. Squeeze trigger,
push starter button and watch for spark at spark plug tip. If
there is not spark, repeat test with a new spark plug.
Replace the battery pack and recycle the spent one.
Turn "L" needle (A) counterclockwise 1/16 turn
(See Fig. 1).
Turn "H" needle (B) counterclockwise 1/16 turn
(See Fig. 1).
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean per instructions in Customer Responsibilities.
3. Turn "H" needle clockwise 1/16 turn (See Fig. 1).
Turn idle speed screw (C) clockwise to increase idle speed (See Fig.
1).
1. Lubricate (spray on silicone)
2. Install more string (see String Replacement).
3. Pull strings while alternately pressing down on and releasing
spool retainer.
4. Remove string from spool and rewind (see String Replacement).
5. Advance string at full throttle.
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Clean threads and lubricate with grease - if no improvement,
replace spool retainer.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean per instruction in Maintenance Section.
4. Turn "H" needle clockwise 1/16 turn.