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Makita LC 1230 Manual

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9
Cutting operation
CAUTION:
• Never attempt to cut workpieces less than 2 mm thick except pipe or workpieces which cannot be secured firmly with
the vise. The piece cut off may be caught by the blade, causing dangerous scattering of chips and/or damage to the
carbide-tips. Possible serious injury may result.
• Do not apply excessive pressure on the handle when cutting. Too much pressure may result in overload of the motor,
decreased cutting efficiency and/or damage to the carbide-tips or blade itself.
• Too little pressure on the handle may result in more sparks and premature blade wear.
• Do not touch the blade, workpiece or cutting chips immediately after operation; they may be extremely hot and could
burn your skin.
• If the blade stops during operation, makes an odd noise or begins to vibrate, switch off the tool immediately. Replace
cracked or damaged blade with a new one.
• Do not cut aluminum, wood, plastics, concrete, tiles, etc.
• Always use carbide-tipped saw blades appropriate for your job. The use of inappropriate saw blades may cause
a poor cutting performance and/or present a risk of personal injury.
Recommended Carbide-tipped saw blade & workpiece ranges
(NA ... Not applicable)
• Standard blade may differ from country to country.
• Carbide-tipped saw blades for metal cutting saw are not to be re-sharpened.
Hold the handle firmly. Switch on the tool and wait until the blade attains full speed. Then lower the handle gently to
bring the blade close to the workpiece. When the blade makes contact, ease into the cut gently at first, then gradually
add pressure as the cutting position steadies. Your pressure on the handle should be adjusted to produce the mini-
mum amount of sparks.
When the cut is completed, switch off the tool and WAIT UNTIL THE BLADE HAS COME TO A COMPLETE STOP
before returning the handle to the fully elevated position. If the handle is raised while the blade is still rotating, the piece
cut off may be caught by the blade, causing dangerous scattering of chips. When cutting only part of the way into a
workpiece, raise the handle while the blade is rotating. Switching off during the cut may cause damage to the carbide-
tips as they contact the workpiece.
Cutting angles (Figs. 12 & 13)
Secure the workpiece in the vise as shown in Fig. 12-1,
and proceed to cut it. The saw blade life will be shortened
if the workpiece is cut as shown in Fig. 12-2.
CAUTION:
Do NOT cut the workpiece as shown in Fig. 12-3 since
this may cause it to be ejected from the vise, possibly
resulting in injury.
The saw blade is subjected to greater wear when the
area A in Fig. 12-2 is cut. Place a wooden block up
against the workpiece as shown in Fig. 13 so that the
saw blade will enter area A at an angle. This will help to
extend the saw blade life.
The allowable cutting dimensions are reduced when a
wooden block is used. Use a wooden block whose
dimensions are equivalent to the maximum allowable cut-
ting dimensions minus the dimensions of the workpiece
to be cut. This will further minimize the shortening of the
saw blade life.
Cutting pipes, squares and channels
(Figs. 14 & 15)
The saw blade is subjected to greater wear when the
areas A and B in Figs. 14-2 and 14-3 are cut. Place a
wooden block up against the workpiece as shown in
Fig. 15-2 so that the saw blade will enter areas A and B
at an angle. This will help to minimize the shortening of
the saw blade life.
The allowable cutting dimensions are reduced when a
wooden block is used. Use a wooden block whose
dimensions are equivalent to the maximum allowable cut-
ting dimensions minus the dimensions of the workpiece
to be cut. This will further minimize the shortening of the
saw blade life.
Cutting rectangles (Fig. 16)
Secure the workpiece in the vise as shown in Fig. 16-1,
and proceed to cut it.
CAUTION:
Do NOT cut the workpiece as shown in Fig. 16-2 since
this may cause it to be ejected from the vise, possibly
resulting in injury.
Diameter &
number of
teeth
Application
Applicable workpiece & thickness range
Angles Metal Pipes Channels
Stainless
Pipes
Stainless
Angles
305 * 60 Mild Steel 4 mm or more 3 – 5 mm 4 mm or more NA NA
305 * 60
Mild Steel
(Lessened
Noise Type)
4 mm or more 3 – 5 mm 4 mm or more NA NA
305 * 78
Thin Mild
Steel
3–6mm 1.2–5mm 2mm or more NA NA
305 * 78 Stainless 3–6mm 1.2–5mm 4mm or more 1.2–5mm 3–4mm
… 9 …


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