Replacing Carbon Brushes - Makita 4112H Manual De Instrucciones

MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
Dressing diamond wheel
If the cutting action of the diamond wheel begins to
diminish, use an old discarded coarse grit bench grinder
wheel or concrete block to dress the diamond wheel. To
do this, tightly secure the bench grinder wheel or con-
crete block and cut in it.

Replacing carbon brushes

1
When the resin insulating tip inside the carbon brush is
exposed to contact the commutator, it will automatically
shut off the motor. When this occurs, both carbon
brushes should be replaced. 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.
Pick up an end of the dust cover slightly with hands so
that brush holder cap appears.
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.
1
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized or Factory Service Centers,
always using Makita replacement parts.
001146
1. Commutator
2. Insulating tip
2
3. Carbon brush
3
004020
1. Dust cover
2
2. Screwdriver
3. Brush holder
3
cap
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
attachments might present a risk of injury to per-
sons. 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.
• Abrasive cut-off wheels
• 14" diamond wheels
• Socket wrench 17
• Safety goggle
• Ring 20
• Elbow joint
Connecting to vacuum cleaner
1
3
When you wish to perform cleaner operation, connect a
vacuum cleaner to your tool. Connect a hose of vacuum
cleaner to the dust nozzle via an elbow joint (accessory).
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested
before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period of
ONE YEAR from the date of original purchase. Should
any trouble develop during this one year period, return
the COMPLETE tool, freight prepaid, to one of Makita's
Factory or Authorized Service Centers. If inspection
shows the trouble is caused by defective workmanship or
material, Makita will repair (or at our option, replace)
without charge.
This Warranty does not apply where:
• repairs have been made or attempted by others:
• repairs are required because of normal wear and
tear:
• the tool has been abused, misused or improperly
maintained:
• alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAM-
AGES FROM THE SALE OR USE OF THE PRODUCT.
6
004379
2
1. Dust nozzle
2. Elbow joint
3. Hose
EN0006-1