Maintenance; Operation - Makita HM1202 Bedienungsanleitung

ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and
•
unplugged before carrying out any work on the
tool.
Side handle (auxiliary handle)
Fig.4
The side handle can be swung 360° on the vertical and
secured at any desired position. It also secures at eight
different positions back and forth on the horizontal. Just
loosen the clamp nut to swing the side handle to a
desired position. Then tighten the clamp nut securely.
The side handle also can be mounted in the rear groove.
Loosen the clamp nut and widen the side handle base.
Slide the side handle back to the rear groove and secure
it with the clamp nut.
Fig.5
Installing or removing the bit
Fig.6
Clean the bit shank and apply bit grease before installing
the bit.
Insert the bit into the tool. Turn the bit and push it in until
it engages.
Fig.7
If the bit cannot be pushed in, remove the bit. Pull the
tool holder cover down a couple of times. Then insert the
bit again. Turn the bit and push it in until it engages.
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 tool holder cover down all the
way and pull the bit out.
Fig.8
Bit angle
Fig.9
The bit can be secured at 12 different angles. To change
the bit angle, slide the change ring forward, then turn the
change ring to change the bit angle. At the desired angle,
slide the change ring back to the original position. The
bit will be secured in place.
NOTE:
The change ring cannot turn when the bit is not
•
installed on the tool.

OPERATION

Chipping/Scaling/Demolition
Fig.10
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 inspection
or maintenance.
Replacing carbon brushes
Fig.11
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.
Remove the screws which secure the rear cover. Pry up
the rear cover with a screwdriver and remove it.
Fig.12
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.13
Lubrication
Fig.14
This tool requires no hourly or daily lubrication because
it has a grease-packed lubrication system. It should be
relubricated after every 6 months of operation. Send the
complete tool to Makita Authorized or Factory Service
Center for this
circumstances require that you should lubricate it by
yourself, proceed as follows.
Run the tool for several minutes to warm it up. Switch off
and unplug the tool.
Loosen the six screws and remove the handle.
Fig.15
Remove the crank cap using a socket wrench. Rest the
tool on the table with the bit end pointing upwards. This
will allow the old grease to collect inside the crank
housing.
Wipe out the old grease inside and replace with a fresh
grease (30 g; 1 oz). Use only Makita genuine hammer
grease (optional accessory). Filling with more than the
specified amount of grease (approx. 30 g; 1 oz) can
cause faulty hammering action or tool failure. Fill only
with the specified amount of grease.
Fig.16
Reinstall the crank cap and tighten with the socket
wrench.
CAUTION:
Do not tighten the crank cap excessively. It is made
•
of resin and is subject to breakage.
Be careful not to damage the terminals or lead
•
wires especially when wiping out the old grease or
6
lubrication service. However, if