Maintenance - Makita BTW253 Instruction Manual

Automotive cordless impact wrench
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5.
The manner of holding the tool or the material of
driving position to be fastened will affect the
torque.
6.
Operating the tool at low speed will cause a
reduction in the fastening torque.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and the
battery cartridge is removed before attempting to
perform inspection or maintenance.
Replacing carbon brushes
1
006258
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 two screws then remove
the rear cover.
007458
Raise the arm part of the spring and then place it in the
recessed part of the housing with a slotted bit
screwdriver of slender shaft or the like.
1
007459
1. Limit mark
1. Rear cover
1
2. Screws
2
1. Spring
2. Arm
3. Recessed part
3
2
Use pliers to remove the carbon brush caps of the
carbon brushes. Take out the worn carbon brushes,
insert the new ones and replace the carbon brush caps
in reverse.
007460
Make sure that the carbon brush caps have fit into the
holes in brush holders securely.
1
2
006304
Reinstall the rear cover and tighten two screws securely.
After replacing brushes, insert the battery cartridge into
the tool and break in brushes by running tool with no
load for about 1 minute. Then check the tool while
running and electric brake operation when releasing the
switch trigger. If electric brake is not working well, ask
your local Makita service center for repair.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
ACCESSORIES
CAUTION:
These
accessories
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.
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
Various type of Makita genuine batteries and
chargers
7
1. Carbon brush
cap
1
1. Hole
2. Carbon brush
cap
or
attachments
Only use
accessory or
are

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