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8 Function of reverse feed stitching on the way (Function setting Nos. 30 to 33 OBT, OBTS, OBTT)
Functons of the lmt of number of sttches and thread trmmng command can be added to the touch back
swtch on the sewng machne head.
Functon settng No. 30
0 : off
Normal back-tack functon
1 : on
Functon of reverse feed sttchng on the way
Functon settng No. 31
0 to 19 sttches <1 / sttch>
Functon settng No. 32
0 : off
Inoperatve when the sewng machne stops.
(Reverse feed sttchng on the way functons only when the sewng machne s run-
nng.)
1 : on
Operatve when the sewng machne stops.
(Reverse feed sttchng on the way functons both when the sewng machne s run-
nng and stops.)
Functon settng No. 33
completed.
0 : off
Wthout thread trmmng
1 : on
Thread trmmng s executed.
Actions under each setting state
Functon settng
Applcaton
No.30
0
1
1
2
1
3
1
4
1
5
Used as the normal reverse feed sttchng touch-back swtch.
1
Used for renforcng seam (lapped seam) durng sewng. (It works only when the sewng machne s
2
runnng.)
Used for renforcng seam (lapped seam) durng sewng. (It works ether when the sewng machne
3
stops or when the sewng machne s runnng.)
Used as startng swtch for reverse feed sttchng at the sewng end. (Used as the substtute for thread
4
trmmng by depressng back part of the pedal. It works only when the sewng machne s runnng. It s
especally effectve when the sewng machne s used as the standng-work machne.)
Used as startng swtch for reverse feed sttchng at the sewng end. (Used as the substtute for thread
5
trmmng by depressng back part of the pedal. It works ether when the sewng machne stops or
when the sewng machne s runnng. It s especally effectve when the sewng machne s used as the
standng-work machne.)
*It is not possible with types other than WB, CB and 0B types.
Touch-back kit (separately sold, Part No. 40010795) is necessary.
Functon of reverse feed sttchng on the way s selected.
Number of sttches performng reverse feed sttchng on the way s set.
Effectve condton of reverse feed sttchng on the way
Either condition is operative when the sewing machine is running.
Thread trmmng s performed when reverse feed sttchng on the way s
No.32
No.33
0 or 1
0 or 1
It works as normal touch-back swtch.
0
0
When operatng touch-back swtch at the tme of depressng front part
of the pedal, reverse feed sttchng as many as the number of sttches
specified by the function setting No. 31 can be performed.
When operatng touch-back swtch at the tme of ether stop of the sew-
1
0
ng machne or depressng front part of the pedal, reverse feed sttchng
as many as the number of stitches specified by the function setting No.
31 can be performed.
0
1
When operatng touch-back swtch at the tme of depressng front part
of the pedal, automatc thread trmmng s performed after reverse feed
stitching as many as the number of stitches specified by the function
settng No. 31 has been performed.
1
1
When operatng touch-back swtch at the tme of ether stop of the sewng
machne or depressng front part of the pedal, automatc thread trm-
mng s performed after reverse feed sttchng as many as the number of
stitches specified by the function setting No. 31 has been performed.
Output functon
– 87 –
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