Troubleshooting; Using Troubleshooting Chart - Efco PT 2700 Manual De Instrucciones

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Using Trouble shooting Chart
WARNING: Always stop unit and disconnect spark plug before performing all of the
recommended remedies below except remedies that require operation of the unit.
When you have checked all the possible causes listed and you are still experiencing the problem, see your
Servicing Dealer. If you are experiencing a problem that is not listed in this chart, see your Servicing Dealer
for service.
PROBLEM
Engine will not start or will run only a
few seconds after starting.
(Make sure Ignition switch is in start
position "I")
Engine starts but will not accelerate
properly:
Engine starts but will not run properly
at high speed.
Engine does not reach full speed and
/ or emits excessive smoke
Engine starts, runs, and accelerates
but will not idle.
Bar and Chain Running Hot and
Smoking
Engine starts and runs, but chain is
not rotating
WARNING: Never touch
the chain while the engine
is running.
*Note: This engine complies with EPA (Environmental Protection Agency) regulations which require exhaust
emission control. As a result, the carburetor adjustment needles are equipped with plastic caps that limit the
rotation from the original factory adjustment. If your unit exhibits specific performance problems that can not be
corrected by the Trouble Shooting Section, the unit should be taken to a Servicing Dealer for repair.
30

TROUBLESHOOTING

POSSIBLE CAUSE
1. No spark
2. Flooded engine.
Carburetor requires "L" (Low jet)
adjustment.
Carburetor requires "H" (High jet)
adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetor requires "H" (High jet)
adjustment.
Carburetor requires adjustment.
1. Chain oil tank empty.
2. Chain tension too tight.
3. Oiler function.
1. Chain tension too tight.
2. Guide bar and chain assembly.
3. Chain and/or guide bar damaged.
4. Clutch drum and/or rim sprocket
damaged.
SOLUTION
1. Check Spark. Remove air filter cover.
Remove spark plug from cylinder.
Reattach the spark plug wire and lay
spark plug on top of cylinder. Pull the
starter rope and watch for spark at
spark plug tip. If there is no spark,
repeat test with a new spark plug
(CMR7A).
2. With the ignition switch off, remove
spark plug. Move choke lever to Run
position (pushed in completely) and
pull starter cord 15 to 20 times. This
will clear excess fuel from engine.
Clean and reinstall spark plug. Pull the
choke lever all out and then insert it
completely in order to activate the
semi-acceleration device. Pull starter
three times with choke lever at run. If
engine does not start, move choke
lever to choke and repeat normal
starting procedure. If engine still fails to
start, repeat procedure with a new
spark plug.
* Contact a Servicing Dealer
carburetor adjustment.
* Contact a Servicing Dealer
carburetor adjustment.
1. Use fresh fuel and the correct 2-cycle
oil mix.
2. Clean per instruction in Maintenance-Air
Filter Section.
3. *Contact a Servicing Dealer for
carburetor adjustment.
Turn idle speed screw "T" clockwise to
increase idle speed. (If chain turns at idle,
turn idle speed screw "T" counterclockwise
to decrease speed); see Operation-
Carburetor Adjustment.
1. Oil tank should be filled every time
that fuel tank is filled.
2. Tension chain per instructions in
Operation-Chain Tension section.
3. Run at full throttle 15 to 30 seconds.
Stop pole pruner and check for oil
dripping from bar tip guard and guide
bar. If oil is present the chain may be
dull or bar may be damaged. If no oil
contact a Servicing Dealer.
1. Tension chain per instructions in
Operation-Chain Tension section.
2. Refer to Assembly-Assembling the
Bar and Chain Section.
3. Refer to Maintenance-Chain and/or
Maintenance-Guide Bar Section.
4. Replace if necessary - contact a
Servicing Dealer.
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