Manual Hitachi CS40EA (page 11 of 80) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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English

ASSEMBLY PROCEDURES

WARNING

Never try to start engine without side case securely fastened.

1. Remove chain bar clamp nuts (1).

2. Remove the side case (2) as pinching the rear part of the side

case (2). (Fig. 1)

* In case of installing the spiked bumper (3), install the spiked

bumper (3)

to the unit with two screws. (Fig. 2)

3. Install the chain bar (4) onto the bolts (5), then push it toward the

sprocket (6) as far as it will go. Make sure that the boss of chain

tension adjust bolt (7) ﬁ ts into the hole of the bar (8).

(Fig. 3)

NOTE

Slightly move the bar back and forth and make sure the chain

tension boss (7) ﬁ ts into the hole (8) in the bar properly. (Fig. 3)

4. Conﬁ rm the direction of saw chain (9) is correct as in the ﬁ gure,

and align the chain on the

sprocket. (Fig. 4)

5. Guide the chain drive links into the bar groove all around the

bar.

6. Install the side case (2) onto the bolts (5).

Then tighten the clamp nuts (1) temporarily.

(

Fig. 1

)

7. Raise the bar end, and tighten the chain (9) by turning the tension

adjustment bolt (10) clockwise. To check proper tension, lightly

lift up the center of chain and there should be about 0.5 – 1.0 mm

clearance between bar and edge of drive link (11). (Fig. 5, 6)

CAUTION

PROPER TENSION IS EXTREMELY IMPORTANT

8. Raise the bar end and securely tighten the chain bar clamp nuts

with the combi box spanner. (Fig. 6)

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. 7)

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. 8)

○ Always shut oﬀ the engine before refueling.

○ Slowly open the fuel tank (12), when ﬁ lling up with fuel, so that

possible overpressure disappears.

○ Tighten the fuel 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 no

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

the container, before fueling.

Chain oil

(Fig. 8)

Fill up with chain oil (13). Always use good quality chain oil. When the

engine is running, the chain oil is automatically discharged.

NOTE

When pouring fuel (12) or chain oil (13) into the tank, place the

unit with cap side up. (Fig. 8)

ADJUSTMENT OF CHAIN OIL SUPPLY

The

chain oil quantity discharged through the lubrication system is

factory adjusted to the maximum. Adjust the quantity in accordance

with the operating condition.

Tur n the adjusting screw (14) counterclockwise to increase the

quantity and turn it clockwise to decrease the quantity. (Fig. 9)

(standard setting turns counterclockwise 1-1 1/2 from

slightly seated)

Starting (Fig. 10

15)

CAUTION

Before starting, make sure chain brake is engaged and that the

bar/chain does not touch anything. (Fig. 10)

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

*Push priming bulb (17) several times so that fuel ﬂ ows through

bulb into carburetor. (Fig. 12)

2. Pull the choke

lever (16) to choked position (Fig. 12).

This will automatically lock the throttle in starting position.

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

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

4. When you hear ﬁ rst ignition, return the choke to

run position.

(Fig. 12)

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

(Fig. 13)

NOTE

If engine does not start, repeat procedures from 2 to 5.

6. As soon as engine start, pull throttle lever full once and release

immediately. (Fig. 14)

Then half-throttle is disengaged. 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.

Chain brake operation (Fig. 16)

Chain brake (18), if so equipped,

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 guard towards the

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 chain brake lever.

How to conﬁ rm:

1) Tu rn 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.

000Book_CS40EA_WE.indb 10000Book_CS40EA_WE.indb 10 2010/08/26 10:39:282010/08/26 10:39:28

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Hitachi CS40EA Manual

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