Specifications; Assembly Procedures; Operating Procedures - Hitachi Koki CG40EAS Handling Instructions Manual

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SPECIFICATIONS

Engine Size (ml)
Spark Plug
Fuel Tank Capacity (ℓ)
Dry Weight (kg)

ASSEMBLY PROCEDURES

Drive shaft to engine (Fig. 1)
Loosen tube locking bolt (1) about ten turns so that the bolt
point will not obstruct drive shaft tube to be inserted. When
inserting drive shaft tube, hold the tube locking bolt outward
preventing inside fi tting from obstructing as well.
NOTE
When it is hard to insert drive shaft up to the marked
position on the drive shaft tube, turn drive shaft by the
cutter mounting end clockwise or counter-clockwise.
Tighten tube locking bolt lining up the hole in the shaft
tube. Then tighten clamp bolt securely (1).
Installation of handle
Remove the handle bracket (2) from the assembly. (Fig. 2)
Place the handles and attach the handle bracket with four
bolts lightly. Adjust to appropriate position. Then fi x it fi rmly
with the bolts.
Fix protection tube on drive shaft or handle using cord
clamps (3). (Fig. 3)
NOTE
If the protection tube is set apart from the handle or pipe,
it will be caught by something during operation and it may
cause serious injury. Do not set the protection tube apart
from the handle or pipe.
Throttle wire/stop cord
Remove air cleaner cover. (Fig. 4)
Connect stop cords. (Fig. 5)
Insert the stay (4) under the nut (5) screwed onto the outer
end of the throttle wire (6) and connect the end of the throttle
wire (7) to the carburetor (8). Then tighten the nut (5) to fi x the
throttle wire to the stay (4). (Fig. 6)
NOTE
Check that the carburetor throttle returns to the idle
position and also that it can be opened wide by operating
the throttle lever.
Cover throttle wire and stop cords together with protective
tube provided up to air cleaner cover. (Fig. 7)
Installation of blade guard (Fig. 8)
Install the blade guard on drive shaft tube against angle
transmission (9). Tighten the guard bracket fi rmly so that the
blade guard does not swing or move down during operation.
Install the gear case and blade guard so that A is approx.
40 mm. (Fig. 9)
CAUTION
The blade guard must be in place when operating.
If the blade guard is not in place when operating, you may
get the serious injury.
7
MODEL
CG40EAS
39.8
NGK BPMR6A
1.00
7.4
Installation of cutting blade (Fig. 10)
When installing a cutting blade, make sure that there are no
cracks or any damage in it and that the cutting edges are
facing the correct direction.
Align the notch hole of the cutter holder with the hole on the
gear case (Top the gear case) and insert the Allen wrench
to stop turning. Turn the fi xing nut clockwise and remove the
fi xing nut, cutter holder cap, and toothed lock washers.
The installation of the cutting blade is as follows: insert the
Allen wrench into the notch hole of the cutter holder and the
hole on the gear case. Then, install the cutting blade (check
the installing direction, as referring to Fig. 12), the cutter
holder cap and toothed lock washers onto the cutter holder
in this order. Finally, tighten the fi xing nut securely by turning
counterclockwise with the Combi box spanner. (Fig. 10)
CAUTION
○ When installing the cutting blade, set its center hole to
the convex part of the cutter holder and hold it with the
concave surface of the cutter holder cap. Then, tighten
the fi xing nut to prevent the cutting blade from being
eccentric. (Fig. 11)
After installing the cutting blade, be sure to remove the
Allen wrench and Combi box spanner.
○ Before operation, make sure the blade has been properly
installed.
○ Cutter holder cap under a cutting blade, check it for wear
or cracks before operation. If any damage or wear is
found, replace it, as it is an article of consumption.
NOTE
The blade must be retained with a new cotter pin each
time installed. (Fig. 10)

OPERATING PROCEDURES

Fuel (Fig. 13)
WARNING
○ The Brush cutter 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 fuel, which is to be
used. Then add the whole amount of oil. Mix (shake) the fuel
mixture. Add the remaining amount of fuel.
Mix (shake) the fuel-mix thoroughly before fi lling the fuel
tank.
Fueling
WARNING
○ Always shut off the engine before refueling.
○ Slowly open the fuel tank, when fi lling up with fuel, so that
possible overpressure disappears.
○ Tighten the fuel cap carefully, after fueling.
○ Always move the Brush cutter at least 3 m (10 ft.) from
the fueling area before starting.