Operating Procedures - Hitachi CS 33EB Manual De Instrucciones

9. A new chain will stretch so adjust the chain after a
few cuts and watch chain tension carefully for the
fi rst half hour of cutting.
NOTE
Check the chain tension frequently for optimum
performance and durability.
CAUTION
○ When the chain is excessively tightened, the bar and
chain will be damaged rapidly. Conversely, when the
chain is excessively loosened, it may get out of the
groove in the bar.
○ Always wear gloves when touching the chain.
WARNING
During operation, hold chain saw fi rmly with both
hands. A single hand operation may cause serious
injury.

OPERATING PROCEDURES

Fuel (Fig. 10)
A
WARNING
○ Do not use fuel with more than 10%
ethanol in this unit.
Use of fuel, such as E15 (15% ethanol), E20
(20% ethanol), E85 (85% ethanol), may
cause problems including overheating,
premature deterioration of fuel lines and carburetors.
Use of fuel with more than 10% ethanol may result
in personal injury or property damage.
Use of fuel with more than 10% ethanol will void the
product warranty.
Check the ethanol level before purchasing fuel for
this unit.
○ The chain saw is equipped with a two-stroke engine.
Always run the engine on fuel, which is mixed
with oil. Provide good ventilation, when fueling or
handling fuel.
○ Fuel contains highly fl ammable and it is possible
to get the serious personal injury when inhaling or
spilling on your body. Always pay attention when
handling fuel. Always have good ventilation when
handling fuel inside building.
B
Fig. 10
Fuel
○ Always use branded 89 octane unleaded gasoline.
○ Use genuine two-cycle oil or use a mix between 25:1
to 50:1, please consult the oil bottle for the ratio or
Hitachi Authorized Service Centers.
○ Only for the state of California at 50:1.
○ If genuine oil is not available, use an anti-oxidant
added quality oil expressly labeled for air-cooled
2-cycle engine use (JASO FC GRADE OIL or ISO
EGC GRADE). Do not use BIA or TCW (2-stroke
water-cooling type) mixed oil.
○ Never use multi-grade oil (10 W/30) or waste oil.
○ Always mix fuel and oil in a separate clean container.
Always start by fi lling half the amount of gasoline, which
is to be used.
Then add the whole amount of oil. Mix (shake) the fuel
mixture. Add the remaining amount of gasoline.
Mix (shake) the fuel-mix thoroughly before fi lling the
fuel tank.
Fueling
WARNING (Fig. 11)
○ Always shut off the engine and let it cool for a few
minutes before refueling.
○ Do not smoke or bring fl ames or sparks near the
fueling site.
○ Slowly open the fuel tank (15), when fi lling up with
fuel, so that possible overpressure disappears.
○ Tighten the fuel tank cap carefully, after fueling.
○ Always move the unit at least 3 m from the fueling
area before starting.
○ Always wash any spilled fuel from clothing
immediately with soap.
○ Be sure to check any fuel leaking after refueling.
16
Before fueling, clean the tank cap area carefully, to
ensure that no dirt falls into the tank. Make sure that
the fuel is well mixed by shaking the container, before
fueling.
Chain oil (Fig. 11)
WARNING
Never use waste or regenerated oil. If you use them,
it will cause damage to your health or this unit.
English
15
Fig. 11
9