Functional Description; Adjusting Belt Tracking - Makita 9902 Instruction Manual

5. Always use safety glasses or goggles. Ordinary
eye or sun glasses are NOT safety glasses.
Hold the tool firmly with both hands.
6.
7. Make sure the belt is not contacting the work-
piece before the switch is turned on.
8. Keep hands away from rotating parts.
Do not leave the tool running. Operate the tool
9.
only when hand-held.
10. This tool has not been waterproofed, so do not
use water on the workpiece surface.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with
product (gained from repeated use) replace strict adher-
ence to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this instruc-
tion manual may cause serious personal injury.

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: 1. Lock button 2. Switch trigger
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 adjusting dial
For 9903, 9920 and 9404
► Fig.2: 1. Speed adjusting dial
The belt speed can be infinitely adjusted between 210 m and
440 m per minute by turning the speed adjusting dial to a given
number setting from 1 to 5. Higher speed is obtained when
the dial is turned in the direction of number 5; lower speed is
obtained when it is turned in the direction of number 1.
Select the proper speed for the workpiece to be sanded.
CAUTION:
• If the tool is operated continuously at low
speeds for a long time, the motor will get over-
loaded, resulting in tool malfunction.
• The speed adjusting dial can be turned only as
far as 5 and back to 1. Do not force it past 5 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.
Installing or removing abrasive belt
► Fig.3: 1. Lever
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

more than 6 mm
1. Steel plate 2. Adjusting knob
Switch on the tool and make sure that the belt is aligned
properly. If the edge of the belt extends beyond the
edge of the base or the edge of the belt retracts more
than 6 mm away from the edge of the base, use the
adjusting knob to adjust the belt tracking.
Dust bag
► Fig.5: 1. Dust bag 2. Dust spout
Attach the dust bag onto the dust spout. The dust spout
is tapered. When attaching the dust bag, push it onto
the dust spout firmly as far as it will go to prevent it from
coming off during operation.
► Fig.6: 1. Dust bag 2. Fastener
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.
NOTE:
• If you connect a Makita vacuum cleaner to this
tool, more efficient and cleaner operations can
be performed.
5 ENGLISH
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