Prior To Operation - Hitachi CM 7MR Bedienungsanleitung

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a power receptacle while
the power switch is in the ON position, the power
tool will start operating immediately, which could
cause a serious accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Checking and installing the diamond wheel
Check the diamond wheel is a specified one and
is not cracked, broken or bent. Check the diamond
wheel is installed securely. For installation, refer to
"Installing/removing diamond wheel".
5. Dust collection cover (Fig. 1, Fig. 2)
The dust collection cover is a protective device to
prevent injury should the diamond wheel shatter
during operation. Ensure that the cover is properly
fitted and fastened before commencing cutting
operation.
6. Spindle lock mechanisms
Confirm that the spindle lock is disengaged by
pushing push button two or three times before
switching the power tool on (See Fig. 3).
7. Cutting depth adjustment (Fig. 6)
After loosening the knob bolt (Fig. 1) the wall chaser
can be sent to any desired depth between 0 mm
and 35 mm according to the scale on the dust guard
(Fig 6). Ensure that the knob bolt is fully tightened
once cutting depth has been adjusted and set.
INSTALLING DUST COLLECTION HOSE
When cutting a material which generates cutting dust,
use the dust collection hose as follows:
Install the dust collector hose for the power tool.
(Fig. 7)
INSTALLING/REMOVING DIAMOND WHEEL
1. Removal (Fig. 1-5)
(1) Disconnect the machine from the power supply
(2) Place the machine on a level surface with the dust
cover facing upwards.
(3) Remove the knob bolt at the front of the dust cover
which secures the dust guard.
(4) Pivot the dust guard out and away from the dust
cover.
(5) Lock the drive shaft in place by pressing in the push
button (spindle lock).
(6) While holding the push button in place, remove the
diamond wheel retention M14 bolt using the 22 mm
wrench supplied.
(7) Remove the blade spacers and diamond wheels
from the drive shaft.
2. Installation (Fig. 1-6)
(1) Disconnect the machine from the power supply.
(2) Fit the blade spacer (3) onto the drive shaft.
(3) Place the first diamond wheel onto the drive shaft.
(4) Put the next blade spacer (5)/spacers onto the drive
shaft in order to create the desired cutting width.
(5) Place the second diamond wheel onto the drive
shaft.
(6) Fit the remaining spacer if not already applied.
(7) Fit the blade washer, ensuring that the concave side
is facing toward the drive shaft.
(8) Secure the diamond wheel retention M14 bolt while
holding the push button as before.
(9) Ensure that the diamond wheels are secure and that
there is no lateral movement or rotation of the
diamond wheels on the drive shaft.
(10) Secure the dust guard and lock in place at the
required cutting depth by tightening the knob bolt.
CUTTING
1. Cutting procedures (Fig. 8)
(1) Place part A on the material to be cut, making sure
that the diamond wheel is not touching the material.
(2) Switch on and slowly cut a slit in the direction of
the arrow B.
(3) Cut along the cutting line in the direction of the
arrow C.
2. Switch operation
Switch ON: Push the locking button forward and
then press the switch lever.
* For continuous use, press the switch
lever. The switch lever is locked by
pushing the locking button forward
once again.
(*Subject to change depending on
area.)
Switch OFF: Press and release the switch lever.
3. Precautions immediately after finishing operation
After switching off the machine, do not put it down
until the depressed center wheel has come to a
complete stop. Apart from avoiding serious accidents,
this precaution will reduce the amount of dust and
swarf sucked into the machine.
CAUTION
Always check the diamond wheel before starting
work. Never use a diamond wheel which is cracked,
broken or bent.
Do not apply water or coolant to the diamond
wheel.
Start cutting only when diamond wheel reaches its
maximum speed.
If the diamond wheel seizes or there is any abnormal
noise, immediately turn the power off.
Never use the diamond wheel to cut zigzag or
curved lines. Never use the side surface of the
diamond wheel. Never use to perform inclination
cutting.
If excessive force is applied to the diamond wheel
to make it align with the cutting line during cutting,
this might not only overload the motor and cause
burn damage but may also overheat the diamond
wheel and shorten the service life.
Secure the workpiece. A workpiece clamped with
clamping devices or in a vice is held more securely
than by hand.
Take care not to allow the power cord to come into
contact with the diamond wheel during operation.
When the work is completed, turn the power off and
disconnect the power plug from the receptacle.
English
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