Thread Tension - JUKI LG-158 Instruction Manual

8. THREAD TENSION

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following
work after turning the power off and ascertaining that the motor is at rest.
❶
❷
Thread tension screw
❷
❹
❶
❸
* Needle thread tension
The thread tension of the right side needle can be adjusted by the right side
thread tension nut ❶ and the left side needle thread can be adjusted by the left
side thread tension nut. Turn the nut to right to make the needle thread tension
stronger and to left to make the tension weaker.
* Bobbin thread tension
The thread tension of the bobbin thread can be adjusted by turning the thread
tension screw of the bobbin case holder.
If the screw is tightened, the tension becomes stronger and if it's loosened, the
tension becomes weaker.
* Thread take-up spring
To adjust the strength of the thread take-up spring, loosen the thread take-up
spring shaft screw ❶ , and turn the thread take-up guide shaft ❷ gently toward
left. To weaken the tension, rotate it toward right. After the adjustment, tighten
the screw ❶ . To adjust the stroke of the take-up spring, loosen the stopper set
screw ❸ and move the stopper ❹ to right and left. If the stopper is moved to-
ward right, the stroke gets bigger.
– 5 –