Operating Procedures - Hitachi CG 40EAS Handling Instructions Manual

English
Installation of blade guard (Fig. 8)
The guard bracket already mounted to the drive shaft tube.
Install the blade guard on drive shaft tube against angle
transmission. Tighten the guard bracket fi rmly so that the blade
guard does not swing or move down during operation.
WARNING
If an incorrect or faulty guard is fi tted, this may cause serious
personal injury.
CAUTION
The blade guard must be in place during operation.
If the blade guard is not in place, there is a possibility of serious
injury.
Blade guards are equipped with sharp line limiter. Be careful
with handling it.
When using a trimmer head, attach the guard extension to the blade
guard. (Fig. 9)
NOTE
○ When attaching the guard extension to the blade guard, the
sharp line limiter must be removed from the blade guard.
○ To remove the guard extension, refer to the drawings. Wear
gloves as the extension has a sharp line limiter, then push the
two square tabs on the guard one by one in order after removed
the screw. (Fig. 10)
Installation of cutting attachment
WARNING
Install the cutting attachment properly and securely as
instructed in the handling instructions.
If not attached properly or securely, it may come off and cause
serious and/or fatal injury.
Installation of semi-auto cutting head
1. Function
Automatically feeds more nylon cutting line when it is tapped at
low rpm (not greater than 4500 min
Applicable nylon cord
Cord diameter: Φ2.5 mm
2. Precautions
○ The case must be securely attached to the cover.
○ Check the cover, case and other components for cracks or
other damage.
○ Check the case and button for wear.
○ The cutting head must be securely mounted to the unit's gear
case.
○ For outstanding performance and reliability, always use Hitachi
nylon cutting line. Never use wire or other materials that could
become a dangerous projectile.
○ If the cutting head does not feed cutting line properly, check
that the nylon line and all components are properly installed.
Contact Hitachi Authorized Service Centers if you need
assistance.
3. Installation (Fig. 11)
○ Attach cutter holder (9) to the gear case. Insert an Allen wrench
into the hole in the gear case to attach winding protector (10)
and attach nylon head (11) by turning it clockwise.
NOTE
Since cutter holder cap is not used here, keep it for next metal
blade use.
4. Adjusting line length
○ Set the engine speed as low as possible and tap the head on
the ground. The nylon line will be drawn out about 3 cm with
each tap. (Fig. 12)
Also, you can extend the nylon line by hand but the engine must
be completely stopped. (Fig. 13)
○ Adjust the nylon line to the proper length of 11–14 cm before
each operation.
10
).
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Installation of cutting blade (Fig. 14)
(If so equipped)
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.
NOTE
○ When installing cutter holder cap (14), be sure to set concave
side upward.
○ Insert the alien wrench (12) into the hole of the angle
transmission in order to lock the cutter holder (13). Please note
that the cutter fi xing bolt or nut (15) has left-handed threads,
(clockwise to loosen/ counter-clockwise to tighten). Tighten the
fi xing bolt or nut with the box wrench.
○ If your unit is of a nut securing type and equipped with a cotter
pin, the blade must be retained with a new pin (16) each time
installed. (Fig. 15)
CAUTION
○ Before operation, make sure the blade has been properly
installed. (Fig. 16)
○ If your unit is equipped with protection cover 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.
WARNING
For Hitachi heads, use only fl exible, non-metallic line
recommended by the manufacturer. Never use wire or wire
ropes. They can break off and become a dangerous projectile.

OPERATING PROCEDURES

Fuel (Fig. 17)
WARNING
○ The trimmer 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 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.
○ Always mix fuel and oil in a separate clean container.
Always start by fi ling 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 over-pressure disappears.
○ Tighten the fuel cap carefully, after fueling.
○ Always move the brush cutter at least 3 m from the fueling area
before starting.
○ Always wash any spilled fuel from clothing immediately with
soap.
○ Be sure to check for any fuel leakage after refueling.