9
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. Con
fi
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 o
ff
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.
Turn 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, pullthrottle lever full once and release
immediately. (
Fig.
14
) Then half-throttle is disengaged.
Make sure chain brake isdisengaged. (
Fig.
15
)
Allow the engine about 2-3minutes 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
con
fi
rm:
1) Turn
o
ff
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 con
fi
rm brake operation. Operating level varies by
bar size.
000Book̲CS40EA̲EE.indb 9
000Book̲CS40EA̲EE.indb 9
2010/09/03 14:50:32
2010/09/03 14:50:32
