Operation; Maintenance; Optional Accessories - Makita HM0860C Instruction Manual

OPERATION

CAUTION:
• Always use the side grip (auxiliary handle) and firmly
hold the tool by both side grip and switch handle during
operations.
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.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Replacing carbon brushes
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. (Fig. 11)
Use a screwdriver to remove the brush holder covers.
(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)
Reinstall the brush holder covers firmly.
Lubrication
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 Service Center for this
lubrication service. However, if 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 four screws (two short screws on the upper
side and two long screws on the lower side.) and remove
the handle. (Fig. 14)
Disconnect the terminal by pulling it. (Fig. 15)
Remove the crank cap by loosening the screws with a
screwdriver. Rest the tool on the table with the bit end
pointing upwards. This will allow the old grease to collect
inside the crank housing. (Fig. 16)
Wipe out the old grease inside and replace with a fresh
grease (30 g). Use only Makita genuine hammer grease
(optional accessory). Filling with more than the specified
amount of grease (approx. 30 g) can cause faulty
hammering action or tool failure. Fill only with the
specified amount of grease. (Fig. 17)
Reinstall the crank cap and secure with the screws.
Connect the terminal and reinstall the handle. (Fig. 18)
8
CAUTION:
• Be careful not to damage the terminal or lead wires
especially when wiping out the old grease or installing
the handle.
• Whenever reinstalling the handle, use the two short
screws for the upper side and two long screws for the
lower side.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION:
• These accessories or attachments are 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. 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.
• Bull point
• Cold chisel
• Scaling chisel
• Grooving chisel
• Clay spade
• Bit grease
• Rammer
• Bushing tool
• Ground rod adapter
• Hammer grease
• Safety goggle
• Side handle (auxiliary handle)
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ from
country to country.