Manual Makita DUC121 (page 20 of 104) (English, German, Dutch, Danish, French, Italian, Portuguese, Spanish)

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Take the filter out of the chain saw and remove small dust

or particles from it. When the filter is too dirty, replace it

with a new one. (Fig. 25)

Insert the battery cartridge into the tool.

Pull the switch trigger to flow built-up dust or particles off

the oil discharge hole by discharging chain oil. (Fig. 26)

Remove the battery cartridge from the tool.

Insert the cleaned oil filter into the oil discharge hole.

When the filter is too dirty, replace it with a new one.

(Fig. 27)

Insert the push nut with its correct side facing up as

shown in the figure into the oil discharge hole to secure

the filter. When the filter cannot be secured with a disfig-

ured push nut, replace the push nut with a new one.

(Fig. 28)

Reinstall the sprocket cover and saw chain on the tool.

Replacing the sprocket (Fig. 29 & 30)

Before fitting a new saw chain, check the condition of the

sprocket.

CAUTION:

• A worn sprocket will damage a new saw chain. Have

the sprocket replaced in this case. The sprocket need

to be installed so that it always faces as shown in the

figure.

Always fit a new locking ring when replacing the

sprocket.

Replacing carbon brushes (Fig. 31 & 32)

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.

Storing tool

Clean the tool before storing. Remove any chips and

sawdust from the tool after removing the sprocket cover.

After cleaning the tool, run it under no load to lubricate

the saw chain and guide bar.

Cover the guide bar with the scabbard.

Remove oil from the oil tank to empty it and place the

chain saw with the tank cap facing upward.

To maintain product SAFETY and RELIABILITY, repairs,

any other maintenance or adjustment should be per-

formed by Makita Authorized Service Centres, always

using Makita replacement parts.

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Makita DUC121 Manual

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