Table of Contents
Advertisement
4-5. How to thread the upper thread
Turn off the power switch for threading the upper thread. Otherwise, unintended press on the foot
switch may cause injury.
Proceed to the following steps at the occurrence of upper thread breakage after the error is reset
by pressing the reset switch.
1. Lift up the plunger and lock it, and then open the main plate.
2. Rotate the pulley to set the thread take-up q at the highest position and start threading from
the tread take-up on the left.
Threading at the highest position is for easy threading and good prevention of the thread come-off at sewing start up.
• Push the thread into a needle hole
inside to outside.
• Pull out the end of thread by about
50mm.
4-6. Adjusting the thread tension
Stronger
Weaker
q
10
9
9
11
11
12
12
13
13
8
8
14
14
15
16
17
Stronger
Weaker
1630S
Weaker
Stronger
CAUTION
*
Be sure to pass the thread through
between timing plates.
2
2
3
4
5
6
6
7
15
After the lower thread tension has been
adjusted, adjust the upper thread tension.
1631S
BAS-6150
Chapter 1 Machine Preparation
*The upper thread breakage
detection sensor is an option.
1
4
4
5
5
4
4
5
6
6
7
8
3
1456S
23
Advertisement
Table of Contents
