Replacing Carbon Brushes - Makita DUC122 Manuel D'instruction

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.
Insert the battery cartridge into the tool.
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Pull the switch trigger to flow built-up dust or particles
off the oil discharge hole by discharging chain oil.
Remove the battery cartridge from the tool.
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Insert the cleaned oil filter into the oil discharge hole.
When the filter is too dirty, replace it with a new one.
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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
disfigured push nut, replace the push nut with a new
one.
Reinstall the sprocket cover and saw chain on the tool.
1. Filter
1
1. Push nut
1
Replacing the sprocket
Before fitting a new saw chain, check the condition of
the sprocket.
1
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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.
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Always fit a new locking ring when replacing the
sprocket.

Replacing carbon brushes

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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.
12
1. Sprocket
2. Locking ring
2
1. Locking ring
1
2. Sprocket
2
3. Washer
3
1. Limit mark
1