Manual Hitachi CS33EDT (page 11 of 80) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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OPERATING PROCEDURES

Operator safety

WARNING

This chain saw (CS33EDT) 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. 8)

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 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.

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 dealer.

○ 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. 9)

○ 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 (13), 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.

Before fueling, clean the tank cap area carefully, to ensure that

dirt falls into the tank. Make sure that the fuel is well mixed by shaking

the container, before fueling.

Chain oil (Fig. 9)

Slowly open the oil tank (14), and ﬁ ll up with chain oil. Always use

good quality chain oil. When the engine is running, the chain oil is

automatically discharged.

Fill up the oil tank (14) with chain oil every time when refueling.

NOTE

When pouring fuel (13) or chain oil (14) into the tank, place the

unit with cap side up. (Fig. 9)

Starting the cold engine (Fig. 10

15)

CAUTION

Before starting, make sure that the bar/chain does not touch

anything.

1. Make sure chain brake is engaged. (Fig. 10)

2. Set ignition switch (15) to ON position (Fig. 11).

3. Push priming pump (16) about ten times so that fuel ﬂ ows

through priming pump into carburetor. (Fig.

12)

4. Tu rn the choke lever (17) to choked position (Fig. 12). This will

automatically lock the throttle in starting position.

5. Pull recoil starter briskly, taking care to keep the handle in your

grasp and not allowing it to snap back. (Fig. 13)

6. When you hear ﬁ rst ignition,

return the choke lever to run

position. (Fig. 12)

7. Pull recoil starter briskly again in the aforementioned manner.

(Fig. 13)

NOTE

If engine does not start, repeat procedures from 4 to 7.

8. As soon as engine start, pull throttle trigger full once and release

immediately. (Fig. 14)

Then half-throttle is disengaged.

9. Make sure chain brake is disengaged. (Fig. 15)

Allow the engine about 2-3 minutes to warm up before subjecting

it to any load.

Do not run the engine at high speed without the load to shorten

the longevity of the engine.

Starting the warm engine

Use

only 1, 2, 7, and 9 of the starting procedure for a cold engine.

If the engine does not start, use the same starting procedure as for

a cold engine.

Chain lubrication test

Check that chain oil is discharged properly. When the saw chain

starts to revolve, point the head of the

guide bar to a stump, etc., and

pull the throttle trigger to perform high-speed operation for around

10 seconds. If chain oil is sprayed over the stump, it is discharged

properly. (Fig. 16)

Chain brake operation (Fig. 17)

Chain brake (18), is designed to activate in an emergency such as kick-

back action. Please check to verify that it works properly before use.

Application of brake is made by moving the front hand guard towards

the bar. During the chain brake operation, even if the throttle trigger

is pulled, the engine speed does not increase and the chain does not

turn. To

release the brake, pull up the front hand guard.

How to conﬁ rm:

1) Tur n 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 our dealer for inspection and

repairs. 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 trigger to stop the engine.

WARNING

Do not carry the machine with the engine running.

Stopping (Fig. 18)

Decrease engine speed, and push ignition switch (15) to stop position.

WARNING

Do not put the machine where there are ﬂ ammable materials

such as dried grass, since the muﬄ er is still hot after the engine

has stopped.

NOTE

If the engine does not stop, it can be forced to stop by rotating the

choke lever to the choked position.

Before restarting

the engine, ask our dealer for repairs.

WARNING

○ Do not overreach or cut above shoulder height.

○ Use extra caution when felling, and do not use the saw in a nose-

high position or above shoulder height.

CHAIN CATCHER

The chain catcher is located on the power head just below the chain

to further prevent the possibility of a

broken chain striking the chain

saw user.

000Book_CS33EDT_WE.indb 10000Book_CS33EDT_WE.indb 10 2011/08/06 9:14:552011/08/06 9:14:55

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Hitachi CS33EDT Manual

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