Brother S-710A - 13-2. Standard Setting Values; Puller (commercially available)

13. TREADLE UNIT ASSEMBLY
SL-710A
91
13-2.Standard setting values
Specification Treadle unit G Treadle unit H
Operation Does not control automatic
presser lifter
Controls automatic presser lifter
Spring position setting No forward/back 1st step
modulation (Figure [a] on
previous page)
Forward/back 1st step modulation
(Figure [b] on previous page)
Parameter
No.
Symbol
(diagram
below)
Function Length from S0
(mm)
Force (N)
Length from S0
(mm)
Force (N)
- S0 Neutral point 0 - 0 -
P2 S1
Forward automatic
presser lifter operating
point
- - 2 (*1) 10
P3 S2
Low speed operation
starting point
3105 25
P4 S3
Speed change starting
point
6-7 -
P5 S4
Maximum speed
reaching point
S5-1 - S5-1 -
-S5
Maximum forward
depression point
14.5 12 14.5 32
P1 S6
Back automatic presser
lifter operating point
- - 2 (*2) 14
P0 S7
Thread trimmer
operating point
5225 35
-S8
Maximum back
depression point
8288 43
*1 : Enabled when DIP switch 1 is ON and memory switch 13 is ON.
*2 : Enabled when memory switch 13 is OFF.
• When the connecting rod installation position is on the inside, the measurement value is the amount of movement of the
treadle from the neutral position to the forward position and to the backward position.
• For treadle unit -H, the point of change (F) in the forward depression force is between S1 and S2, and the point of
change (R) in the backward depression force is between S6 and S7.
1841M
Neutral
Forward
depression
Backward
depression
Speed