Assembly Procedures - Hitachi CG 40EAS (P) Handling Instructions Manual

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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.
Insert the drive shaft into the clutch case of the engine properly on
the drive shaft tube meets the clutch case.
Some models may come with the drive shaft already installed.
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
WARNING
When you use steel/rigid blades on brush cutters, always use
a barrier bar (2) and shoulder harness with the loop handle.
(Fig. 2)
Attach the handle to the drive shaft tube with the angle towards the
engine.
Adjust the location to the most comfortable position before
operation.
NOTE
If your unit has handle location label on drive shaft tube, follow
the illustration.
Remove the handle bracket (3) from the assembly. (Fig. 3)
Place the handles and attach the handle bracket with four bolts
lightly. Adjust to appropriate position. Then attach it fi rmly with the
bolts.
Attach the protection tube to the drive shaft or handle using cord
clamps (4). (Fig. 4)
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. 5)
Connect stop cords. (Fig. 6)
Insert the stay (5) under the nut (6) screwed onto the outer end of
the throttle wire (7) and connect the end of the throttle wire (8) to the
carburetor (9). Then tighten the nut (6) to secure the throttle wire to
the stay (5). (Fig. 7)
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. 8)
Some models may come with the throttle wire and stop cords
already installed.
Installation of blade guard (Fig. 9)
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.
10
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. 10)
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. 11)
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. 12)
○ Attach cutter holder (10) to the gear case. Insert an Allen
wrench into the hole in the gear case to attach winding
protector (11) and attach nylon head (12) 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. 13)
Also, you can extend the nylon line by hand but the engine must
be completely stopped. (Fig. 14)
○ Adjust the nylon line to the proper length of 11–14 cm before
each operation.
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