Dust Bag; Adjusting Belt Tracking; Sanding Operation/Shoe; Functional Description - Makita 9901 Instruction Manual

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Switch action (Fig. 1)
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 switch trigger. Release the
switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, and then release it.

Speed change

For 9402 only (Fig. 2)
To change the tool speed, press the "H" side of the speed
change switch for high speed, or the "L" side for low
speed.
CAUTION:
• Use the speed change switch only after the tool comes
to a complete stop.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing abrasive belt (Fig. 3)
Pull the lever all the way out and install the belt over the
rollers, and then return the lever to the original position.
CAUTION:
• When installing the belt, make sure that the direction of
the arrow on the back of the belt corresponds to the
one on the tool itself. (Fig. 4)
Adjusting belt tracking (Fig. 5)
While the belt is running, use the adjusting knob to center
the belt tracking. Failure to do so can result in frayed belt
edges and wear on the sander frame.
Dust bag (Fig. 6)
The use of the dust bag makes sanding operations clean
and dust collection easy. To attach the dust bag, fit it onto
the dust spout.
When the dust bag is about half full, remove the dust bag
from the tool and pull the fastener out. Empty the dust bag
of its contents, tapping it lightly so as to remove particles
adhering to the insides which might hamper further
collection.
6
OPERATION
Sanding operation (Fig. 7)
CAUTION:
• The tool should not be in contact with the workpiece
surface when you turn the tool on or off. Otherwise a
poor sanding finish or damage of the belt may result.
Hold the tool firmly with both hands. Turn the tool on and
wait until it attains full speed. Then gently place the tool on
the workpiece surface. Keep the belt flush with the
workpiece at all times and move the tool back and forth.
Never force the tool. The weight of the tool applies
adequate pressure. Excessive pressure may cause
stalling, overheating of the motor, burning of the
workpiece and possible kickback.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace
them when they are worn down to the limit mark. 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. (Fig. 8)
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. (Fig. 9)
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers, always
using Makita replacement parts.

OPTIONAL 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.
• Abrasive belts
• Carbon plate
• Sanding shoe

• Dust bag

• Belt sander stand (For Model 9901, 9924DB )
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ from
country to country.