Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc
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165
163
165
164
162
161
4.16 Presser foot pressure sensor
Disassembly
1. Remove
covers.
2. Remove adjusting wheel lock (
161
).
3. Remove carefully the adjusting wheel
(
162
) so that the spring loaded
pressure lever remains in place.
4. Remove metal guide (
164
).
5. Remove plug (
143
) from P-print (
149
)
and remove cable (
163
) from cable
guide.
6. Loosen screws (
165
).
7. Replace pressure sensor
potentiometer (
166
).
Assembly:
1. Replace pressure sensor potentiometer (
166
).
2. Refit screw (
165
).
3. Place
cable
(
163
) correctly in guide.
4. Reconnect plug (
143
).
5. Refit metal guide (
164
).
6. Refit adjusting wheel (
162
). Make sure the pressure
lever fits into the spring, into the potentiometer and the
guide of the adjusting wheel.
7. Refit adjusting wheel lock (
161
).
8. Refit
covers.
9. Carry out a functional check (test 5e,
p. 91
).
10. Sew-off.
4.17 Winder motor
Disassembly:
1. Remove
covers.
2. Disconnect plug (
144
) from P-Print (
p. 26
).
3. Remove securing screw (
42
).
4. Replace winder motor.
Assembly:
1. Fit new winder motor and fasten with the
securing screw.
2. Reconnect P-Print plug (
144
) (
p. 26
).
3. Refit
covers.
4. Test winder functioning (tests 3h and 4k,.
p.77 / 86
)
5. Adjust winder function.
42
