7
GB
| Operating Instructions
3) Tensioner nail
4) Tensioner screw
7.
Tighten the nut securely with the bar tip held up (12
~ 15 Nm). Then check the chain for smooth rotation
and proper tension while moving it by hand. If neces-
sary, readjust with the chain cover loose.
Turn the tensioner screw clockwise to tighten the chain,
turn the tensioner screw counter-clockwise to loosen
the chain.
8. Check the tension of the saw chain. Use your hand
to lift the chain link which positions on the middle of
cutting length up with approximate 10N force. If the
chain link goes out of the rail of guide bar entire, you
need to retighten the chain.
IMPORTANT
It is very important to maintain the proper chain tension.
Rapid wear of the guide bar or the chain coming off eas-
ily can be caused by improper tension. Especially when
using a new chain, take good care of it since it should
expand when first used.
6. Fuel and chain oil
FUEL
The engines are lubricated by oil specially formulated
for air-cooled 2-cycle gasoline engine use. If oil is not
available, use an antioxidant added quality oil expressly
labeled for air-cooled 2-cycle engine use.
RECOMMENDED MIXING RATIO GASOLINE 40: OIL 1
Exhaust emission are controlled by the fundamental
engine parameters and components (eq., carburation,
ignition timing and port timing) without addition of any
major hardware or the introduction of an inert material
during combustion.
These engines are certified to operate on unleaded
gasoline.
WARNING
Gasoline is very flammable. Avoid smok
-
ing or bringing any flame or sparks near
fuel. Make sure to stop the engine and
allow it cool before refueling the unit. Se-
lect outdoor bare ground for fueling and
move at least 3 m (10 ft) away from the
fueling point before starting the engine.
HOW TO MIX FUEL
1. Measure out the quantities of gasoline and oil to be
mixed.
2. Put some of the gasoline into a clean, approved fuel
container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate again for at
least one minute.
5. Put a clear indication on the outside of the container
to avoid mixing up with gasoline or other containers
FOR YOUR ENGINE LIFE, AVOID;
1. FUEL WITH NO OIL (RAW GASOLINE)
– It will cause
severe damage to the engine inner parts very quickly.
2. GASOHOL
– It can cause deterioration of rubber and/
or plastic parts and disruption of engine lubrication.
3. OIL FOR 4-CYCLE ENGINE USE or WATER-
COOLED 2-CYCLE ENGINE USE
– It can cause
spark plug fouling, exhaust port blocking, or piston
ring sticking.