S-7200B
7. REPLACING PARTS
39
7-3. Motor and timing belt
< Timing belt removal >
1. Remove the side plate (1).
2. Remove the three screws (2), and then remove the motor
cover (3).
3. Tilt back the machine head.
4. While pushing the timing belt (4) in the direction of the arrow,
turn the machine pulley (5) forward to remove the timing belt
(4) from timing pulley D (6).
5. Return the machine head to its original position.
6. Turn the machine pulley (5) until the four set screws (8) on
the joint (7) are facing toward the front.
Loosen the two set screws (8) at the left by about five turns
each.
7. Remove the three screws (9), and then remove the
machine pulley (5).
8. Remove the three screws (10), and then remove the motor (11).
* If it is difficult to remove the motor (11), tighten one of
the removed screws (10) into the screw hole (a) at the
left or right. The motor (11) can then be pulled forward
and removed. (Fig. [A])
9. Pull out the timing belt (4) by hand while being careful not
to get it caught on the fan (12).
< Motor removal >
Carry out steps 1 and 2 and steps 6 to 8 of <Timing belt
removal>.
1209B
1210B
1211B
