Siruba F007D - Differential Ratio and Presser Foot Pressure

*••zmiJtbiiJfl 1:0.3 ••~
1:2.9 •••• <1>,J:rt¥1JJIMt¥
* •• i11J tb • ((1116)
*J! fi1Jii :$ ft lll iii Sf ,JlU If B1 M '-it < 2 >tt
J:f¥.
*II m Jllllll Sf ,JlU K Jl II t¥ < 2 >tt r fJ •
Fig 16
ADJUSTING DIFFERENTIAL RATIO
The differential feed ratio of this
machine is adjustable from 1:03 to
1:2.9 (Fig 16).
*To adjust the ratio, loosen the
nut (1), move the indicator (2)
up or down.
*To strectch the cloth, move the
indicator (2) upward;
To gather the cloth, move the
indicator (2) downward.
ADJUSTING Tim P~URE OF P~ER
FOOT
Pressure of the Presser Foot should
be as light as possible, so that
cloth can be feeded and sewed
smoothly.
*To adjust, loosen nut (A), turn
screw (B) for suitable pressure,
the fasten nut (A). (Fig 17)
Fig 17
- 7 -
From the library of: Superior Sewing Machine & Supply LLC