Makita HM0810T Instruction Manual page 6

WARNING: DO NOT let comfort or famil-
iarity with product (gained from repeated
use) replace strict adherence to safety rules
for the subject product.
MISUSE or failure to follow the safety rules
stated in this instruction manual may cause
serious personal injury.
FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Switch action
► Fig.1: 1. Lock button 2. Switch trigger
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and
then push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Installing side grip (auxiliary handle)
► Fig.2: 1. Side grip
The side grip swings around to either side, allowing
easy handling of the tool in any position. Loosen the
side grip by turning it counterclockwise, swing it to the
desired position and then tighten it by turning clockwise.
Bit grease (optional accessory)
Coat the bit shank head beforehand with a small
amount of bit grease (about 0.5 -1 g; 0.02 - 0.04 oz.).
This chuck lubrication assures smooth action and lon-
ger service life.
Installing or removing the bit
► Fig.3: 1. Bit 2. Change ring
► Fig.4: 1. Bit 2. Change ring
Pull the change ring down all the way and insert the
bit into the tool holder as far as it will go. Release the
change ring and it will return automatically to its original
position to secure the bit. After installing, always make
sure that the bit is securely held in place by trying to pull
it out. To remove the bit, pull the change ring down all
the way and pull the bit out.
OPERATION
Chipping/Scaling/Demolition
Hold the tool firmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled. Pressing very hard on
the tool will not increase the efficiency.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspec-
tion or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
Replacing carbon brushes
► Fig.5: 1. Commutator 2. Insulating tip 3. Carbon
brush
When the resin insulating tip inside the carbon brush
is exposed to contact the commutator, it will automati-
cally 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.
Use a hex wrench to remove the rear cover.
► Fig.6: 1. Hex wrench 2. Rear cover
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.
► Fig.7: 1. Screwdriver 2. Brush holder cap
6 ENGLISH