Hitachi CS 33EDTP Mode D'emploi page 11

OPERATING PROCEDURES
Operator safety
WARNING
This chain saw (CS33EDTP) is designed especially for
tree care and surgery. Only persons trained in tree care
and surgery may use this saw. Observe all literature,
procedures and recommendations from the relevant
professional organization. Failure to do so constitutes a
high accident risk. We recommend always using a rising
platform for sawing in trees. Rappelling techniques are
extremely dangerous and require special training. The
operator must be trained in and familiar with the use of
safety equipment and working and climbing techniques.
Always use the restraining equipment for both the
operator and the saw.
Fuel (Fig. 11)
WARNING
○ 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 is highly fl ammable and it is possible to get seriously
injured when inhaling or spilling on your body.
Always pay attention when handling fuel. Always have
good ventilation when handling fuel inside building.
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 about the mixture ratio to Hitachi
Authorized Service Centers.
○ 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.
○ Never mix fuel and oil in machine's fuel tank. 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.
Mixing amount of two-cycle oil and gasoline
Gasoline (Liter)
Ratio 50:1
0.5
1
2
4
Fueling (Fig. 12)
WARNING
○ 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.
Two-cycle oil (ml)
Ratio 25:1
10 ——— 20
20 ——— 40
40 ——— 80
80 ——— 160
○ Before fueling, in order to remove static electricity from
the main body, the fuel container and the operator,
please touch the ground that is slightly damp.
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. 12)
WARNING
Never use waste or regenerated oil. If you use them, it
will cause damage to your health or this unit.
Slowly open the oil tank (16), and fi ll up with chain oil. Always
use high quality chain oil. When the engine is running, the
chain oil is automatically discharged.
Fill up the oil tank (16) with chain oil every time when
refueling.
NOTE
When pouring fuel or chain oil into the tank, place the unit
with cap side up. (Fig. 12)
Chain brake operation (Fig. 3, 14)
Chain brake is designed to activate in an emergency such
as kick-back action.
Application of brake is made by moving the front hand guard
(2) towards the guide bar. During the chain brake operation,
even if the throttle lever is pulled, the engine speed does not
increase and the chain does not turn. To release the brake,
pull up the front hand guard (2) toward the front handle.
If the engine keeps rotating at high speed with the brake
engaged, the clutch will overheat causing trouble.
When the brake engages during operation, immediately
release the throttle lever to slow down the engine.
How to confi rm the activation of the chain brake (Fig.
13)
1) Turn off the engine.
2) Holding the chain saw horizontally, release your hand
from the front handle, hit the tip of the guide bar to a
stump or a piece of wood, and confi rm brake operation.
Operating level varies by bar size.
In case the brake is not eff ective, ask Hitachi Authorized
Service Centers for inspection and repairs.
Starting the cold engine (Fig. 3, 14-18)
CAUTION
Before starting, make sure that the guide bar/chain does
not touch anything.
1. Push the front hand guard (2) so that the brake is engaged.
(Fig. 14)
2. Set stop switch (17) to ON position. (Fig. 15)
3. Push priming pump (19) approximately ten times so that
fuel fl ows into carburetor. (Fig. 16)
4. Turn the choke lever (18) to set it in the START position
( ). (Fig. 16) This will automatically lock to half-throttle.
5. Pull recoil starter (20) rapidly, taking care to keep the
handle in your grasp and not allowing the handle to snap
back. (Fig. 17)
6. When you hear fi rst ignition, return the choke lever (18)
to set it in the RUN position ( ). (Fig. 16)
NOTE
When the choke lever is put back to the RUN position ( )
from the START position ( ) by hand, the throttle lever will
be kept half-open (half-throttle).
7. Pull recoil starter (20) rapidly again in the aforementioned
manner. (Fig. 17)
NOTE
If engine does not start, repeat procedures from 4 to 7.
8. As soon as the engine starts, pull throttle lever (22) full
once with the throttle lever lockout (21) pressed and
immediately release the throttle lever (22). Then half-
throttle is disengaged. (Fig. 18)
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English