Maintenance - Makita 4131 Instruction Manual

CAUTION:
• Do not turn the tool upside down. The cutting chips
accumulated inside the dust cover may fall out of the
dust cover.
• Handle the dust cover carefully so that it will not be
deformed or damaged.
ACCESSORIES
CAUTION:
• These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use
of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment
for its stated purpose.
If you need any assistance for more details regarding these accessories, ask your local Makita service center.
• Rip fence (Guide rule)
• Safety goggle
• Recommended Carbide-tipped saw blades & workpiece ranges
Diameter &
number of Application
teeth
185/38 Mild steel
Thin mild
185/48
steel
Corrugated
185/70
steel sheets
CAUTION:
• Always use carbide-tipped saw blades appropriate for your job. Do not cut aluminum, wood, plastics, concrete, tiles,
etc.
• Carbide-tipped saw blades for metal cutting saw are not to be resharpened.
8
Applicable workpiece & thickness range
Angle Metal pipes
4 mm or
2 – 5 mm
more
3 – 6 mm 1.2 – 5 mm
N/A 1.2 – 2 mm

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
Inspecting saw blade
• Check the blade carefully for cracks or damage before
and after each use. Replace a cracked or damaged
blade immediately.
• Continuing to use a dull blade may cause a dangerous
kickback and/or motor overload. Replace with a new
blade as soon as it no longer cuts effectively.
• Carbide-tipped saw blades for metal cutter cannot
be re-sharpened.
Replacing carbon brushes (Fig. 14 & 15)
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
Channels Sheet metal
4 mm or
2 – 7 mm
more
2 mm or
2 – 7 mm
more
Thinner than
N/A
4 mm
Corrugated
Metal studs
steel sheets
N/A N/A
2 – 4 mm N/A
Thinner than Thinner than
2 mm 2 mm
(N/A...Not applicable)