Hitachi CG 18DL Handling Instructions Manual page 20

English
4. Nylon line replacement
(1) Remove cutting body cap by fi rmly pushing inward the
locking tabs with your thumbs (Fig. 16).
(2) After removing cutting body cap, take out spool, and
discard the left line.
(3) Fold the new nylon line half unevenly. (Fig. 17)
(4) Hook the "U" bent end of the nylon line into the groove
on the center partition of the spool.
Wind both halves of the line on the spool in the same
direction, keeping each half of the line on its own side
of the partition. (Fig. 18)
(5) Push each line into stopper holes, leaving the loose
ends approx. 100 mm in length. (Fig. 19)
(6) Insert both loose ends of the line through the eyelet
when placing the spool in the cutting body cap. (Fig.
20)
NOTE
When placing spool in the cutting body cap, try to
line up stopper holes (3) with eyelet (4) for easier line
release later.
(7) Place reel spring into the spool. (Fig. 21)
(8) Place the cutting body over the cutting body cap so
that the locking tabs on the cutting body meet the long
holes on the cutting body. Then push the cutting body
cap securely until it clicks into place. (Fig. 21)
(9) Pull loose ends of line to release them from the stopper
holes. If the lines happen to come out too long (over
100 mm), rewind them to be approx. 100 mm by
pushing and turning guide ball. (Fig. 15)
(10) The initial cutting line length should be approx. 150 mm
and should be equal on both sides. (Fig. 22)
OPERATION
Trimming grass
WARNING
○ Do not operate the tool at night or under bad weather
conditions when visibility is poor.
○ Do not operate the tool when it is raining or right after it
has been raining.
○ Wear proper footwear to prevent slipping that could
cause you to lose your balance and fall.
○ Do not use the tool on steep slopes.
When trimming grass on slopes that are not so steep,
trim by moving towards the ridge.
○ Place the tool on the shoulder belt, place the right hand
on the handle and the left hand on the loop handle and
hold it fi rmly.
○ Take care not to move the cutting head too close to
your feet.
○ Do not raise the cutting head above your knee during
cutting.
○ Do not use the tool where the cutting head may come
into contact with stones, tree and other obstacles.
○ A cutting attachment can injure while it continues to
spin after the motor is stopped. When the unit is turned
off , make sure the cutting attachment has stopped
before the unit is set down.
○ Do not use the tool within 15 m of another person.
When you work with someone else, maintain a
distance of more than 15 m.
1. Insert the battery while observing its polarities
2. Turn on the tool (Fig. 23)
○ Press the Start button on the housing, the power goes
on and the power lamp on the handle lights red.
○ Pressing the start button a second time turns the power
off and the red lamp on the handle goes off .
20
[Auto power off ]
When the power is turned on but the lever is not used
for one minute, the tool is automatically turned off . To
turn the tool on again, press the start button a second
time.
WARNING
Never leave the tool with the power on. This could
result in an accident.
3. Trimming grass
○ Grip the handle from above, press the lock lever and
pull the lever to start cutting head rotation. (Fig. 24)
○ Release the lever when you fi nish trimming and stop
the motor.
○ Place your thumb on the loop handle and grip the
handle with your other fi ngers. (Fig. 25)
○ Take a posture that makes it easy to move.
[Grass trimming techniques]
○ When the motor is turning slowly, it is weak and grass
tends to get caught in the knife. When it turns too fast,
the vibrations and noise are loud and battery power
consumption goes up.
○ At excessive speed, the battery will wear down faster.
○ Do not swing the pipe, but use the hips to move the
cutting head horizontally from right to left in an arc
while going forward and use the left side of the cutting
head for cutting grass. (Fig. 26)
OPERATIONAL CAUTIONS
Continuous work
This tool comes with an over-heat protection circuit
that protects the electronic parts that control the
rechargeable battery. In continuous trimming work,
tool temperature will rise and eventually trigger the
over-heat protection circuit, which will shut down the
tool.
If this happens, let the tool cool for a length of time.
When the temperature drops, it will again become
possible to use the tool. When the rechargeable
battery has to be exchanged during continuous
operation, let the tool rest for about 15 minutes.
Speed switch
Equipped with an electronic circuit, this switch enables
step-less speed changes.
If the switch trigger is set too low (low rpm range) and
the motor is continuously overworked, the electronic
circuits will become hot and could break down.
Do only light work at low motor speeds.
MAINTENANCE AND INSPECTION
CAUTION
○ Pull out battery before doing any inspection or
maintenance.
1. Checking the condition of the cutting head
The cutting head should be checked regularly. If
worn or broken cutting head can slip or decrease the
effi ciency of the motor and burn it out.
Replace worn cutting head with new ones.
CAUTION
○ If you use a cutting head of which point is worn or
broken, it will be dangerous. So replace it with a new
one.
2. Check the Screws
Loose screws are dangerous. Regularly inspect them
and make sure they are tight.
CAUTION
○ Using this power tool with loosened screws is
extremely dangerous.