Maintenance - Makita 9227CB Instruction Manual

Installing or removing wool pad (Fig. 4)
CAUTION:
Always be sure that the tool is switched off and
unplugged before installing or removing the wool pad.
To install the wool pad, first remove all dirt or foreign mat-
ter from the backing pad. Press the shaft lock and screw
the backing pad onto the spindle. Insert the sleeve 18
into the center hole of the backing pad. Using the sleeve
18 as a positioning guide, install the wool pad on the
backing pad with the sleeve 18 inserted through the
center hole of the wool pad. Then remove the sleeve 18
from the backing pad. To remove the wool pad, just tear it
off the backing pad. Then unscrew the backing pad while
pressing the shaft lock.
Switch action (Fig. 5)
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 trig-
ger 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. 6)
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. 7)
CAUTION:
Always wear safety glasses or a face shield during opera-
tion.
Pull the trigger and turn the speed adjusting dial until you
obtain the appropriate speed for your work. When polish-
ing, keep the wool pad at an angle of about 15° to the
workpiece surface.
6
-1
RPM (min )
600 – 900
900 – 1,500
1,500 – 2,100
2,100 – 2,700
2,700 – 3,000
FOR USE AS A SANDER
Installing or removing abrasive disc (Fig. 8 & 9)
CAUTION:
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 abrasive
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. 10)
CAUTION:
Always wear safety glasses or a face shield during opera-
tion.
Keep the abrasive disc at an angle of about 15° to the
workpiece surface.
Loop handle (optional accessory)
CAUTION:
Always be sure that the tool is switched off and
unplugged before installing the loop handle.
It is convenient to use the loop handle for work at any
angle. First, remove the head cover by loosening the
screw. Pull off the head cover while pulling out its cor-
ners. (Fig. 11 & 12)
Install the loop handle so that its protrusion will fit into the
matching hole in the gear housing. (Fig. 13)
Install the bolts and tighten them with the hex wrench.
The loop handle can be installed in two different direc-
tions, whichever is convenient for your work. (Fig.14 & 15)

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. 16 & 17)
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, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.