Sharp DX-SX1H Service Manual page 9

Adjusting the tension of the timing belt
Remove the gear unit and connect the ammeter to the DC
power as shown in Fig. 9-1.
If measurement of the loading motor current is possible, move
the motor in the direction of the arrow so as to obtain 40 - 50
mA, and fix the motor with screws (A1) x 2 pcs.
Connector
3.5V
Timing Belt
Drive
Pulley
– 9 –
Loading
Gear
Motor
Unit
M
2 1
Ampere
Meter
DC Power
Figure 9-1
(A1) x1
ø1.7x2mm
Shaft
Motor
Pully Ass'y
(A1) x1
ø1.7x2mm
Figure 9-2
DX-SX1H