Operational Cautions; Maintenance And Inspection - Hitachi CG36DL Handling Instructions Manual

English
WARNING
Never leave the tool with the power on. This could result
in an accident.
3. Lever operation and brake (Fig. 36)
To start rotation of the cutting blade, with the power
turned on, pull the lever while pressing the locking lever.
When you release the lever, the brake engages in 1 – 3
seconds, stopping rotation of the cutting blade.
Make sure that the brake operates normally before using
the tool.
4. Speed dial (Fig. 37)
A speed dial for changing the rotational speed in the
range of 5800 – 7000 min
Turn the dial clockwise to increase the speed and
counterclockwise to reduce the speed.
5. Trimming grass
○ Grip the handle from above, press the locking lever and
pull the lever to start cutting head rotation. (Fig. 38)
○ Release the lever when you fi nish trimming and stop the
motor.
○ Place your thumb on the handle and grip the handle with
your other fi ngers. (Fig. 39) (CG36DL, CG36DAL only)
○ Place your thumb on the loop handle and grip the
handle with your other fi ngers. (Fig. 40) (CG36DL (L),
CG36DAL (L) only)
○ Take a posture that makes it easy to move.
[Grass trimming techniques]
Do not swing the pipe, but use the hips to move the nylon
head horizontally from right to left in an arc while going
forward and use the left side of the nylon head for cutting
grass. (Fig. 41)

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.
Overload Protection
This tool comes with an overload protection circuit
to protect the electronic parts controlling the tool. In
continuous overload during trimming work (locking the
nylon head, etc.), the overload protection circuit shuts
down the motor. If this happens, turn OFF the power,
and then resolve the problem causing the overload.
The power lamp blinks if the lever is pressed after the
motor has stopped (see page 13, "ABOUT POWER
LAMP"). The power automatically turns OFF if the power
lamp blinks longer than 5 seconds. If this happens,
resolve the problem causing the overload, and then
switch the power button ON to resume using the tool.
Carrying the tool (Fig. 42)
CAUTION
○ Remove the storage battery and use the cutting blade
cover to protect the cutting blade when carrying the tool.
Carrying the tool without fi rst putting the cutting blade
cover in place exposes the human body to the blade,
which can result in injury.
○ Carry the tool holding with hands and keeping the cutting
blade away from the body.
○ When retracting the main pipe, be careful of the
pointed end and take care not get your fi ngers caught.
(CG36DAL, CG36DAL (L) only)
Release the locking lever and retract the main pipe. Lock
the locking lever until the projection hits the main pipe. This
procedure allows you to reduce the tool to a compact size.
is provided on the housing.
-1
The main pipe can be retracted to any position. Choose
a suitable length for carrying and storage. (CG36DAL,
CG36DAL (L) only)

MAINTENANCE AND INSPECTION

CAUTION
Pull out battery before doing any inspection or
maintenance.
1. Checking the condition of the nylon head
The nylon head should be checked regularly. If worn or
broken nylon head can slip or decrease the effi ciency of
the motor and burn it out.
Replace worn nylon head with new ones.
CAUTION
If you use a nylon 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.
3. Inspecting the carbon brushes (Fig. 43)
The motor employs carbon brushes which are
consumable parts. Since and excessively worn carbon
brush can result in motor trouble, replace the carbon
brush with new ones when it becomes worn to or near
the "wear limit". In addition, always keep carbon brushes
clean and ensure that they slide freely within the brush
holders.
NOTE
When replacing the carbon brush with a new one, be
sure to use the Hitachi Carbon Brush Code No. 999015.
4. Replacing carbon brushes
Take out the carbon brush by fi rst removing the brush
cap and then hooking the protrusion of the carbon
brush with a slotted head screw driver, etc., as shown in
Fig. 44.
When installing the carbon brush, choose the direction
so that the nail of the carbon brush (see Fig. 45) agrees
with the contact portion of brush tube. Then push it in
with a fi nger as illustrated in Fig. 46. Lastly, install the
brush cap.
CAUTION
○ Be absolutely sure to insert the nail of the carbon brush
into the contact portion of brush tube. (You can insert
whichever one of the two nails provided.)
○ Caution must be exercised since any error in this
operation can result in the deformed nail of the carbon
brush and may cause motor trouble at an early stage.
5. Cleaning of the outside
When the grass trimmer is stained, wipe with a soft dry
cloth or a cloth moistened with soapy water. Do not use
chloric solvents, gasoline or paint thinner, as they melt
plastics.
6. Storage
Store grass trimmer in a place in which the temperature
is less than 40°C and out of reach of children.
NOTE
Storing Lithium-ion Batteries
Make sure the lithium-ion batteries have been fully
charged before storing them.
Prolonged storage (3 months or more) of batteries with
a low charge may result in performance deterioration,
signifi cantly reducing battery usage time or rendering
the batteries incapable of holding a charge.
However, signifi cantly reduced battery usage time may
be recovered by repeatedly charging and using the
batteries two to fi ve times.
If the battery usage time is extremely short despite
repeated charging and use, consider the batteries dead
and purchase new batteries.
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