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Hitachi CM12Y Manual

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7
English
(2) Install the dust collector hose for the power tool
in the accessory hose. (Fig. 1)
CAUTION
⅜ Do not use the dust collection hose when cutting
metal.
⅜ Always install a rubber cap on the dust collection
adapter when the dust collection hose is not used.
INSTALLING/REMOVING DIAMOND WHEEL
1. Installation
(1) Wipe the cutting dust from the spindle and washers.
(2) Make sure the rotation direction of the diamond
wheel conforms to the direction indicated on the
wheel guard and install the diamond wheel as shown
in Fig. 2 and 3.
• Install the wheel washer (B) (silver) on the inner
side when the hole diameter of the diamond wheel
is 22.2 mm.
• Install the wheel washer (C) (black) on the inner
side when the hole diameter of the diamond wheel
is 20.0 mm.
(3) Press the lock pin and secure the spindle. Tighten
the bolt adequately with the provided wrench.
(Fig. 5 and 6)
NOTE
⅜ Always use the provided wrench to secure the bolt.
⅜ Be careful because the bolt tightens to the left
(counterclockwise direction) to prevent it from being
loosened during cutting. (Fig. 6)
2. Removal
Remove the bolt with the provided wrench and
remove the diamond wheel. (Fig. 6)
CUTTING
1. Wheel guard adjustment (Fig. 4)
Adjust the wheel guard angle with the knob so dust
and debris from the material or sparks do not contact
the operator during the cutting operation.
2. Cutting procedures (Fig. 7)
(1) Place this tool on the material to be cut and align
the premarked line and the diamond wheel.
The cutting can be performed smoothly if you cut
straight ahead on the scribed line in the initial cut.
OPTIONAL ACCESSORIES (sold separately)
(1) Diamond wheels for dry cutting (segment type)
(2) Cutting wheels
(3) Wheel washer (A) (hole diameter 25.4mm)
Optional accessories are subject to change without notice.
APPLICATION
⅜ Cutting or scribing concrete
⅜ Cutting or scribing tile
⅜ Cutting or scribing stone
⅜ Cutting or scribing roof tile
⅜ Cutting steel
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. Check that the knob used to secure the wheel guard
is tight.
Make sure that the knob that secures the wheel
guard is adequately tight.
If this knob is loose, it may result in injury to the
operator. (Fig. 4)
INSTALLING DUST COLLECTION HOSE
When cutting a material which generates cutting dust,
use the dust collection hose as follows:
(1) Remove the rubber cap and install the accessory
hose. (Fig. 1)
Type Wheel dia. (mm) Code No. Thickness (mm) Hole dia. (mm)
For concrete and masonry
305
985618 2.8
22.2
For abrasive materials 985619 3.0
Type Wheel dia. (mm) Code No. Hole dia. (mm) per pkg.
Metal cutting wheel 985609 22.2
305
985608 25.4
10 pcs.
Masonry cutting wheel 985611 22.2
985610 25.4
01Eng_CM12Y_WE 4/20/10, 13:427
… 8 …


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