Manual Makita 2012 NB (page 8 of 56) (English, German, Dutch, Danish, French, Italian, Portuguese, Spanish)

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ASSEMBLY

CAUTION:

• Always be sure that the tool is switched off and

unplugged before carrying out any work on the tool.

Replacing blades

CAUTION:

• Handle the blades very carefully when removing or

installing the blades to prevent cuts or injury from the

blades and to prevent damage to the blades. They are

razor-sharp.

• Clean out all chips, dust, pitch or foreign matter adher-

ing to the drum or blades before installing the blades.

• Use blades of the same dimensions and weight, or

drum oscillation/vibration will result, causing poor cut-

ting action and eventually, tool breakdown.

• Replace both blades at the same time.

• The disposable-type blade has a cutting edge on both

sides. When one cutting edge becomes dull, you can

use the other cutting edge. Always remove resin and

dirt sticking to the reverse side of the blade before

using the other cutting edge. This blade must not be re-

sharpened. When both cutting edges become dull, the

blade should be carefully thrown away.

1. Removing blades

Loosen the thumb screw which secures the chip

cover and remove the chip cover. Remove the

screws which secure the right side cover. Then

remove the right side cover. Turn the pulley until the

drum can be locked in the position whereby the

blade installation bolts face upward. (Fig. 8)

For throw away blades only

Place the two magnetic holders on the set plate and

push them in the direction of the arrow until the claw

contact the blade. Remove the six blade installation

bolts using the socket wrench. Grip the magnetic

holders and raise them straight up to remove the set

plate and the blade from the drum. Press the lock

plate and turn the pulley 180° to lock the drum.

Remove the other blade as described above. (Fig. 9

& 10)

For standard blades only

Remove the six installation bolts using the socket

wrench. Raise the set plate and blade straight up to

remove them from the drum. Press the lock plate

and rotate the drum by turning the pulley 180° to

lock the drum. Remove the other blade as described

above. Remove the set plate from the blade. (Fig. 11

& 12)

2. Installing blades

CAUTION:

• Use only Makita socket wrench provided to tighten

the blade installation bolts. The use of any other

socket wrench may cause overtightening or insuffi-

cient tightening of the bolts, resulting in severe

injury.

For throw away blades only

Provide a flat wood block approximately 300 mm

long and 100 mm wide. Place the blade and the set

plate on the wood block so that the blade locating

lug of the set plate rests in the groove of the blade.

Adjust the set plate so that both ends of the blade

protrude approximately 1 mm beyond the end of the

set plate. Place the two magnetic holders on the set

plate and push them until the claw contacts the

blade. (Fig. 13)

Grip the magnetic holder and slip the heel of the set

plate into the groove in the drum. Install the blade

installation bolts. (Fig. 9)

After tightening all the blade installation bolts lightly

and evenly from the center to the outside, tighten

them completely following the same sequence.

Remove the magnetic holders from the set plate.

Install the other blade as described above. Rotate

the drum slowly while pressing the lock plate to

make sure there is nothing abnormal. Then install

the chip cover and the side cover. (Fig. 10)

CAUTION:

• Do not tighten the blade installation bolts without

the blade locating lug of the set plate correctly

resting in the groove of the blade. This may cause

damage to the blade and potential injury to the

operator.

• Do not turn the tool on with the chip cover

removed.

• When installing the chip cover, make sure that the

chain is not caught by the chip cover.

For standard blades only

Place the blade on the blade gauge so that the blade

edge is perfectly flush with the inside of the front rib

(A). Place the set plate on the blade, then gently

press the heel of the set plate flush with the back

side of the blade gauge (B). Tighten the screws to

secure the set plate to the blade. (Fig. 14)

Slip the heel of the set plate into the groove in the

drum. Install the blade installation bolts. (Fig. 15)

After tightening all the blade installation bolts lightly

and evenly from the center to the outside, tighten

them completely following the same sequence.

(Fig. 16)

Install the other blade as described as above. Rotate

the drum slowly while pressing the lock plate to

make sure there is nothing abnormal. Then install

the chip cover and the side cover.

CAUTION:

• Tighten the blade installation bolts securely when

installing the blades.

• Do not turn the tool on with the chip cover open.

• When installing the chip cover, make sure that the

chain is not caught by the chip cover.

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Makita 2012 NB Manual

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