Initialization Of The Setting Data; Maintenance; Removing The Rear Cover - JUKI SC-921 Instruction Manual

16. Initialization of the setting data

All contents of function setting of SC-921 can be returned to the standard set values.
❶
❸ ❹
❷
(Caution) Do not turn OFF the power on the way of initializing operation. Program of the main unit
may be broken.
4) Turn OFF the power switch and turn ON the power switch after closing the front cover. The machine
returns to the normal motion.
(Caution) 1. When you carry out the aforementioned operation, the neutral position correction value
for the pedal sensor is also initialized. It is therefore necessary to carry out automatic
correction of the pedal sensor neutral position before using the sewing machine. (Refer
"III-9. Automatic compensation of neutral point of the pedal sensor"
2. When you carry out the aforementioned operation, the machine-head adjustment values
are also initialized. It is therefore necessary to carry out adjustment of the machine head
before using the sewing machine. (Refer
motor type sewing machine only)"
3. Even when this operation is performed, the sewing data set by the operation panel can-
not be initialized.
IV. MAINTENANCE

1. Removing the rear cover

WARNING :
To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine,
remove the cover after turning OFF the power switch and a lapse of 5 minutes or more. To prevent
personal injuries, when a fuse has blown out, be sure to replace it with a new one with the same
capacity after turning OFF the power switch and removing the cause of the blown-out of the fuse.
Ⓐ
Ⓑ
❺ ❻
❼
p.14.)
– 43 –
1) Turn ON the POWER switch with all
switch ❹ ,
of
switch ❻ held pressed.
2) "rS" is displayed on indicator Ⓑ with
a blip to start initialization.
3) The buzzer sounds after approxi-
mately one second (single sound
three times, "peep", "peep", and
"peep"), and the setting data returns
to the standard setting value.
"II-6. Adjusting the machine head (direct-drive
1) Press the OFF button of the power switch to turn
OFF the power after confirming that the sewing
machine has stopped.
2) Draw out the power cord coming from the power
plug socket after confirming that the power switch
is turned OFF. Perform the work of step 3) after
confirming that the power has been cut and it has
passed for 5 minutes or more.
switch ❺ and
p.38.)