Operation; Maintenance - Makita 9237CB Instruction Manual

Speed adjusting dial (Fig. 3)
The tool speed can be changed by turning the speed
adjusting dial to a given number setting from 1 to 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 tool
speed.
Number
1
2
3
4
5
6
014945
CAUTION:
• If the tool is operated continuously at low speeds for a
long time, the motor will get overloaded, resulting in
tool malfunction.
• 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.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
• Always install the loop handle or the side grip.
Removing or installing head cover (Fig. 4)
To remove the head cover, perform the following steps:
1. Remove the screw on the head cover with
screwdriver.
2. Remove the head cover as shown in the figure.
To install the head cover, perform the above steps in
reverse.
Installing loop handle
CAUTION:
• Always be sure that the loop handle is installed
securely before operation.
Always install the loop handle on the tool before
operation. Hold the tool's switch handle and the loop
handle firmly with both hands during operation.
Install the loop handle so that its protrusion will fit into the
matching hole in the gear housing. (Fig. 5)
Install the bolts and tighten them with the hex wrench.
The loop handle can be installed in two different
directions as shown in the figures whichever is
convenient for your work. (Fig. 6 & 7)
For tools which are equipped with a backing pad.
Installing or removing the wool pad (optional
accessory) (Fig. 8)
To install the wool pad, first remove all dirt or foreign
matter 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.
6
–1
min (RPM)
600
900
1,500
2,100
2,700
3,200
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.
For tools which are equipped with a rubber pad.
Installing or removing the wool bonnet (optional
accessory)
Mount the rubber pad onto the spindle. Screw the lock
nut onto the spindle. (Fig. 9)
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 rubber pad, follow the installation
procedure in reverse. (Fig. 10)
Fit the wool bonnet over the rubber pad. Tie a bow knot
and tuck the knot and any loose strings between the wool
bonnet and the rubber pad. (Fig. 11)
Installing side grip (handle) (optional accessory)
(Fig. 12)
CAUTION:
• Always be sure that the side grip is installed securely
before operation.
Screw the side grip securely on the position of the tool as
shown in the figure.

OPERATION

Polishing operation (Fig. 13)
CAUTION:
• Always wear safety glasses or a face shield during
operation.
Hold the tool firmly. Turn the tool on and then apply the
wool pad/bonnet to the workpiece.
In general, keep the wool pad/bonnet at an angle of
about 15 degrees to the workpiece surface.
Apply slight pressure only. Excessive pressure will result
in poor performance and premature wear to wool pad/
bonnet.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Cleaning the dust cover (Fig. 14)
Clean the dust cover when necessary as following steps:
1. Remove the screw on the dust cover.
2. Remove the dust cover.
3. Wipe the dust cover to remove dirt.
4. Align the hook of the dust cover with groove on the
handle.
5. Tighten the dust cover with the screw.
If the dust cover is broken or becomes extremely dirty,
replace it.