Operation; Maintenance - Makita SA7000C Betriebsanleitung

Speed adjusting dial (Fig. 3)
The rotating speed can be changed by turning the speed
adjusting dial to a given number setting from 1 to 6 (6 at
the time when the switch trigger is fully pulled).
Higher speed is obtained when the dial is turned in the
direction of number 6. And lower speed is obtained when
it is turned in the direction of number 1.
Refer to the table for the relationship between the number
settings on the dial and the approximate rotating speed.
Number
1
2
3
4
5
6
CAUTION:
• The speed adjusting dial can be turned only as far as 6
and back to 1. Do not force it past 6 or 1, or the speed
adjusting function may no longer work.
• If the tool is operated continuously at low speeds, the
motor will get overloaded and heated up.
Electronic function
The tools equipped with electronic function are easy to
operate because of the following features.
Constant speed control
Possible to get fine finish, because the rotating speed is
kept constant even under loaded condition.
Additionally, when the load on the tool exceeds admissi-
ble levels, power to the motor is reduced to protect the
motor from overheating. When the load returns to admis-
sible levels, the tool will operate as normal.
Soft start feature
Soft start because of suppressed starting shock.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing side grip (handle) (Fig. 4 & 5)
CAUTION:
• Always be sure that the side grip is installed securely
before operation.
Remove one of the screws which secure gear housing
and head cover, then screw the side grip on the tool.
Installing or removing abrasive disc (Fig. 6 & 7)
NOTE:
• Use sander accessories specified in this manual.
These must be purchased separately.
Mount the rubber pad onto the spindle. Fit the disc on the
rubber pad and screw the lock nut onto the spindle. To
tighten the lock nut, press the shaft lock firmly so that the
spindle cannot revolve, then use the lock nut wrench and
securely tighten clockwise.
To remove the disc, follow the installation procedure in
reverse.
6
-1
min (R.P.M.)
1,500
1,700
2,000
2,500
3,300
4,000

OPERATION

WARNING:
• It should never be necessary to force the tool. The
weight of the tool applies adequate pressure. Forcing
and excessive pressure could cause dangerous wheel
breakage.
CAUTION:
• Never switch on the tool when it is in contact with the
workpiece, it may cause an injury to operator.
• Never run the tool without the abrasive disc. You may
seriously damage the pad.
• Always wear safety goggles or a face shield during
operation.
• After operation, always switch off the tool and wait until
the disc has come to a complete stop before putting the
tool down.
ALWAYS hold the tool firmly with one hand on rear han-
dle and the other on the side handle. Turn the tool on and
then apply the abrasive disc to the workpiece.
In general, keep the abrasive disc at an angle of about
15 degrees to the workpiece surface. (Fig. 8)
Apply slight pressure only. Excessive pressure will result
in poor performance and premature wear to abrasive disc.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
The tool and its air vents have to be kept clean. Regularly
clean the tool's air vents or whenever the vents start to
become obstructed. (Fig. 9)
Replacing carbon brushes (Fig. 10 & 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.
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.
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.
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.
• Rubber pad
• Abrasive discs
• Lock nut
• Lock nut wrench
• Side grip (handle)