Maintenance - Makita HM1130 Betriebsanleitung

OPERATING INSTRUCTIONS
Installing or removing bit
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the bit.
Clean the bit shank and apply the bit grease provided to
it before installing the bit. (Fig. 1)
Insert the bit into the tool holder cap. (Fig. 2)
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. After installing, always make sure that the bit is
securely held in place by trying to pull it out. (Fig. 3)
To remove the bit, pull the tool holder cover down all the
way and pull the bit out. (Fig. 4)
Side handle (auxiliary handle) (Fig. 5)
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.
Switch action (Fig. 6)
CAUTION:
Before plugging in the tool, always check to see that the
tool is switched off.
To start the tool, push the "ON I" button on the left side of
the tool. To stop the tool, push the "OFF O" button on the
right side of the tool.
Speed change (Fig. 7)
For HM1130C only
The blows per minute can be adjusted between 1,300
and 2,650 BPM just by turning the adjusting dial. This
can be done even while the tool is running. The dial is
marked 1 (lowest speed) to 5 (full speed). Refer to the
table below for the relationship between the number set-
tings on the adjusting dial and the blows per minute.
Number on
adjusting dial
5
4
3
2
1
Chipping / Scaling / Demolition (Fig. 8)
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.
6
Blows per minute
2,650
2,350
1,950
1,550
1,300

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Replacement of carbon brushes (Fig. 9 & 10)
Whenever carbon brushes must be replaced, they cut out
the tool automatically. When this occurs, loosen the
screws which secure the rear cover. Pry up the rear cover
with a screwdriver and remove it. Then replace both car-
bon brushes at the same time. Use only identical carbon
brushes.
Lubrication (Fig. 11 & 12)
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. Lubricate the
tool every time the carbon brushes are replaced.
Run the tool for several minutes to warm it up. Switch off
and unplug the tool. 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). Use only Makita
genuine 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. Reinstall the crank
cap and tighten with the socket wrench. Do not tighten
the crank cap excessively. It is made of resin and is sub-
ject to breakage.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Centre.