Toyota ESP9000, Service Manual

Page: 11 / 111

4. REPLACEMTNT OF MAIN COMPONENTS
4-9. Jump motor
［Removal］
(1) Remove the needle case.
[Please refer to 『“ 4-5. Needle bar
reciprocator” 』 on page 41]
(2) Remove five set screws (a) and the arm
front cover L. (Fig.1)
(3) Remove each setting screws and the
thread stand plate, bobbin winder base
and rear cover. (Fig.2)
(4) Cut the cable tie and remove the relay
harness.
(5) Remove two setting screws (b) and the
jump motor set. (Fig.3)
(6) Loosen the setting screws (c) and
remove the jump lever holder. (Fig.4)
(7) Remove four setting screws (d) and the
jump motor. (Fig.4)
［Installation］
(1) Install the jump motor with four setting
screws (d). (Fig.4)
(2) Hang the jump lever return spring on
the jump lever holder and pull down the
spring as low as possible so that the
spring will not be located on the jump
positioning collar. (Fig.4)
(3) Tighten the setting screw (c) and check
that the jump lever holder returns with
the spring and stops with the stopper.
(Fig.4)
(4) Install the jump motor set with two
setting screws (b). Adjust the clearance
between the jump lever and the needle
reciprocator at 0.5 mm by moving the
jump motor right and left.
(5) Connect the relay harness, bundle the
cord with cable tie and install the thread
stand plate, bobbin winder base and
rear cover.
(6) Install the needle case.
FIG.1
FIG.2
FIG.3
(a)
Arm front cover L
Thread stand plate
Rear cover
Bobbin winder base
(b)
Jump motor set
Jump lever return spring
Jump positioning
collar
Stopper
(d)
(d)
(c)
Jump lever holder
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