Operation; Maintenance - Makita HM0860C Betriebsanleitung

CAUTION:
• The speed adjusting dial can be turned only as far as 5
and back to 1. Do not force it past 5 or 1, or the speed
adjusting function may no longer work.
Indicator lamp (Fig. 3)
The green power-ON indicator lamp lights up when the
tool is plugged. If the indicator lamp is lit but the tool does
not start even if the tool is switched on, the carbon
brushes may be worn out, or the electric circuit or the
motor may be defective. If the indicator lamp does not
light up and the tool does not start, the electric circuit or
the mains cord may be defective.
The red service indicator lamp lights up when the carbon
brushes are nearly worn out to indicate that the tool
needs servicing. After approx. 8 hours of use, the motor
will automatically be shut off.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Side grip (auxiliary handle) (Fig. 4)
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). This chuck lubrication
assures smooth action and longer service life.
Installing or removing the bit (Fig. 5, 6 & 7)
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.
If the bit cannot be pushed in, remove the bit. Pull the
chuck 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 chuck cover down all the way
and pull the bit out.
Bit angle (Fig. 8)
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.

OPERATION

CAUTION:
• Always use the side grip (auxiliary handle) and firmly
hold the tool by both side grip and switch handle during
operatioin.
Chipping/Scaling/Demolition (Fig. 9)
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. 10, 11 & 12)
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.
Use a screwdriver to remove the brush holder covers.
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.
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.
Disconnect the terminal by pulling it. (Fig. 13)
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. 14)
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 ham-
mering action or tool failure. Fill only with the specified
amount of grease. (Fig. 15)
Reinstall the crank cap and secure with the screws.
Connect the terminal and reinstall the handle. (Fig. 16)
CAUTION:
• Do not tighten the crank cap excessively. It is made of
resin and is subject to breakage.
• Be careful not to damage the terminal or lead wires
especially when wiping out the old grease or installing
the handle. (Fig. 17)
• 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 per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
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