Maintenance; Optional Accessories - Makita DCO140 Instruction Manual

NOTE:
• When using this tool, the rotating action causes
the tool to pull. The less pressure applied to the
tool causes less pull and provides a more accu-
rate cut. Excessive pressure or fast cutting can
cause the bit to dull or break premature.
• When cutting drywall around outlet boxes, cut in
a counterclockwise direction for ease of cut.
• The standard bit included with this tool is for cut-
ting drywall only. When cutting materials other
than drywall, do not use the standard drywall
guide bit.
Using multipurpose bit (optional
accessory)
► Fig.9
When using the multipurpose bit into the material, hold
the tool at approximately a 45 degree angle with the
edge of the shoe base contacting the material.
► Fig.10
Bring the tool carefully to a straight position so the shoe
base contacts the material fully.
Circular guide (optional accessory)
Circular cutting diameters: 10 cm - 34 cm
Installing circular guide
► Fig.11: 1. Thumb screw 2. Shoe
Release the thumb screw which secures the shoe.
► Fig.12: 1. Projections 2. Shoe
Align the projections in the circular guide with the
grooves in the shoe, and secure the shoe and circular
guide with the thumb screw.
► Fig.13: 1. Thumb screw 2. Circular guide 3. Shoe
4. Loosen 5. Tighten
To adjust the cutting depth, loose the thumb screw and
then slide the shoe with the circular guide. After the
proper adjustment, tighten the thumb screw securely.
Using circular guide
► Fig.14: 1. Knob 2. Tighten 3. Loosen
Loosen the knob, and adjust its position in accordance
with the size of the circle to be cut. (The hole dimen-
sions to be cut are indicated on the side of the circular
guide as a general guideline.) After completion of the
adjustment, tighten the knob securely.
► Fig.15: 1. Knob
Install the end of the knob into the center of the circle to
be cut, and proceed to cut in a clockwise direction.
Vacuum cover (optional accessory)
To perform cleaner operations, use the vacuum cover and
connect the tool to Makita vacuum cleaner or dust collector.
► Fig.16: 1. Thumb screw 2. Vacuum cover
Loosen the thumb screw and remove the shoe. Attach the
vacuum cover, and fasten it securely with the thumb screw.
The circular guide (optional accessory) can be installed
on the vacuum cover.
► Fig.17: 1. Tool 2. Vacuum cover 3. Hose 28 4. Hose
for vacuum cleaner 5. Vacuum cleaner
Connect the hose of a vacuum cleaner/dust collector to
the vacuum cover. When connecting to Makita vacuum
cleaner, use an optional hose 28 mm in inner diameter.
► Fig.18: 1. Tool 2. Vacuum cover 3. Hose 28 4. Dust collector
When connecting to Makita dust collector, connect the
hose for the dust collector directly to the dust nozzle.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before attempt-
ing to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Replacing carbon brushes
► Fig.19: 1. Limit mark
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.
► Fig.20: 1. Holder cap cover 2. Screwdriver
Insert the top end of slotted bit screwdriver into the notch
in the tool and remove the holder cap cover by lifting it up.
► Fig.21: 1. Brush holder cap 2. Screwdriver
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.
Reinstall the holder cap cover on the tool.
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by Makita
Authorized Service Centers, always using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION:
• These accessories or attachments are recom-
mended for use with your Makita tool specified in this
manual. The use of any other accessories or attach-
ments 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.
• Drywall guide bit
• Multi purpose bit
• Collet cone
• Wrench
• Circular guide
• Vacuum cover
• Makita genuine battery and charger
NOTE:
• Some items in the list may be included in the
tool package as standard accessories. They
may differ from country to country.
9 ENGLISH