Makita 9403 Manual

9403
CONCEPTION AND MAIN APPLICATIONS
Specifications
Model 9403 is a handy and convenient belt sander that inherits models
9401 and 9402. Sanding efficiency and capacity of dust collection have
been raised as well as noise and weight have been lowered.
Power consumption is 1200W,
and belt dimensions are 100mm(4") wide and 610mm(24") long.
100mm belt sander
Models No.
Description
Dust bag ass'y ---------------- 1pc.
Abrasive belt AA80 --------- 1set (5pcs.)
New Tool
TECHNICAL INFORMATION
Standard equipment
Abrasive belt, AA and CC each of #40, #60, #80, #100, #120, #150, #180, #240
Carbon plate,
Hose complete 28-1.5,
Hose complete 28-3.0,
Joint 25
Optional accessories
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Input Output Max.
Output(W)
100
110
120
220
230
240
13
11
11
5.7
5.5
5.3
50/60
50/60
50/60
50/60
50/60
50/60
1200
1200
1200
1200
1200
1200
520
520
520
520
520
520
1250
1250
1250
1250
1250
1250
500m/min (1.640 ft/min)
100mm (4") x 610mm (24")
5.9kg (13.1lbs)
Belt speed
Net weight
Belt size
353 (13 7/8")
211 (8 3/4")
164 (6 1/2")
Power supply cord 5m (16.4ft)

Repair
(1) Replacement of armature
a)
b)
c)
d)
e)
Unscrew tapping screws; two PT4x45 and one PT4x18 (one
CT4x40 in model 9403, and one CT4x16 in model 9921). Remove
dust collector cover and separator so that dust collector fan 80
appears.
Unscrew tapping screw CT4x16 and remove belt cover.
Take off holder cap and remove carbon brush.
Remove synchro-belt 9-354.
Turn pulley 10-24.1 clockwise and remove it.
(Note that the pulley 10-24.1 is fixed with a left-handed screw so
do not turn it counterclockwise.)
Dust collector cover
Tapping
screw PT4x18
Two tapping
screws PTx45 One tapping screw
CT4x40 for model 9403
One tapping screw
CT4x16 for model 9921
Belt cover
One tapping
screw CT4x16
Carbon brush
Holder cap
Pulley 10-24.1
Synchro-belt 9-354

(2) Removal of driving roller
(3) Caution for replacement of edge slider complete
f)
g)


a)
b)
c)
Unscrew cross-slot pan-head screw M5x12 that fixes dust collector
fan 80, and remove fan 80.
Remove two tapping screws PT4x18 which fix dust collector
bracket so that armature can be taken off together with dust
collector bracket.


Remove belt cover and synchro-belt 9-354 with the same
procedures as the replace of armature.
Unscrew three tapping screws CT4x16 and remove gear cover.
Insert lock nut wrench 28 into two holes of helical gear 43
complete, and fix the helical gear complete. Use 24mm box
wrench to turn driving roller clockwise and the driving roller can
be removed.
When assembling edge slider complete, be sure to install it so that
the ceramic plate side will be positioned inside as shown in the figure below.
Pan-head screw M5x12
Tapping screw
PT4x18
Dust collector
bracket
Fan 80
Tapping
screw
PT4x18
Gear cover
Tapping screw CT4x16
Helical gear complete Driving roller
Lock nut wrench 28 24mm box wrench
Ceramic plate (white) Edge slider complete

Wiring diagram
[When terminal block is not used]
[When terminal block is used]
3 2
3 2
Power supply cord
Power supply cord
Switch
Switch
Noise suppressor
Noise suppressor
Connector
Field
Field
Terminal block
Noise suppressor is not used depending on countries.
11