Maintenance - Makita 9227C Operating Instructions Manual

Switch action (Fig. 9)
CAUTION:
Before plugging in the tool, always check to see that
the switch trigger actuates properly and returns to the
''OFF'' position when released.
To start the tool, simply pull the trigger. Tool speed is
increased by increasing pressure on the trigger.
Release the trigger to stop. For continuous operation,
pull the trigger and then push in the lock button. To
stop the tool from the locked position, pull the trigger
fully, then release it.
Speed adjusting dial (Fig. 10)
The tool speed can be infinitely adjusted between 600
rpm and 3,000 rpm (rpm at the time when the switch
trigger is fully pulled) by turning the speed adjusting
dial to a given number setting from 1 to 6. Higher
speed is obtained when the dial is turned in the
direction of number 6; lower speed is obtained when
it is turned in the direction of number 1. Refer to the
table below for the relationship between the number
settings on the dial and the approximate tool speed.
Number
1 – 2
2 – 3
3 – 4
4 – 5
5 – 6
CAUTION:
• If the tool is operated continuously at low speeds for
a long time, the motor will get overloaded and
heated up.
• 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.
Polishing operation (Fig. 11)
CAUTION:
Always wear safety glasses or a face shield during
operation.
Pull the trigger and turn the speed adjusting dial until
you obtain the appropriate speed for your work. When
polishing, keep the wool pad at an angle of about 15°
to the workpiece surface.
RPM
600 – 900
900 – 1,500
1,500 – 2,100
2,100 – 2,700
2,700 – 3,000
6
FOR USE AS A SANDER
Installing or removing abrasive disc
(Fig. 1, 12 & 13)
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the abrasive
disc.
Mount the rubber pad onto the spindle. Fit the abra-
sive disc on over the rubber pad and screw the lock
nut onto the spindle. Press the shaft lock and tighten
the lock nut using the lock nut wrench. To remove the
abrasive disc, follow the installation procedure in
reverse.
NOTE:
The rubber pad, abrasive disc, lock nut and lock nut
wrench are optional accessories.
Sanding operation (Fig. 14)
CAUTION:
Always wear safety glasses or a face shield during
operation.
Keep the abrasive disc at an angle of about 15° to the
workpiece surface.

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. 15 & 16)
Replace carbon brushes when they are worn down to
the limit mark. Both identical carbon brushes should
be replaced at the same time.
To maintain product safety and reliability, repairs,
maintenance or adjustment should be carried out by a
Makita Authorized Service Center.