How to fix tension spring ? - White Sewing 1632 Mechanical Sewing Machine

Bobbin thread showing on top side means the top thread tension is too high or there is too little or no bobbin thread tension.

Be sure the bobbin thread has not escaped the bobbin thread tension spring.

If the bobbin thread is in its tension spring, there will some resistance when you pull the bobbin thread.

Select top thread tension 2, lower presser foot and pull on top thread. Tension should be similar to bobbin thread.

Comment below for further assistance.

What tension problem are you having? You can adjust the top thread tension in the tools menu normally on most auto tension models. The bobbin tension is adjusted by the tension spring screw.

first clean bobbin case loosen thread tension screw and clean under tension spring, hi pressure air is the best. its important to clean under tension part because material builds up and does not allow the flat spring to put the proper pressure on the bobbin thread. tighted tension (second screw) accordingly. all thread tension depends on thickness of goods being sewn. the heavier the good the more tension u need on top.

THE BOBBIN IS PLACED INTO THE HOLDER WITH THE THREAD IS GOING AWAY FROM THE SPRING, NOT TOWARDS IT. IT IS LIKELY TO TURN COUNTER CLOCKWISE. TAKE THE ASSEMBLY OUT AND PLACE THE THREAD INTO THE BOBBIN HOLDER JUST AS YOU WOULD WHILE IN THE SEWING MACHINE AND PLACE THE THREAD UNDER THE SPRING. ONCE IN THEN TRY CAREFULLY TO LET THE ASSEMBLY HANG. BOUNCE THE ASSEMBY DANGLE AND BOUNCE UP AND DOWN. THIS IS TO ADJUST THE BOBBIN TENSION. THE TENSION SHOULD ALLOW THE ASSEMBLY TO MOVE AROUND ONE INCH AWAY. YOU NEED TO ADJUST THE SPRING ACCORDINGLY. IF THIIS DOESN'T ACCOMPLISH FIXING THE PROBLEM THEN YOU WILL NEED TO HAVE YOUR TIMING GEARS AND BELTS CHECKED. THEY ARE ALLOWING THE TIMIING TO CHANGE IN A SHORT LENGTH OF STITCHES.

it would be a good idea to take it to a repair shop and let the check
to see if they can get a new spring.

try to use little bet pluming type on top screw!!!

contact a juki dealer to see if they can give instructions

There are two springs on the bobbin case of a rotary hook machine like the 180 and I suspect you're talking about the thread tension spring on the outside of the case - this is held on and the tension adjusted by a two very small screws. The other spring is the brake spring which is a complicated shape spring that sits in the bottom of the case and puts a slight amount of pressure on the bobbin itself. Assuming the thread tension spring has been recovered along with its two screws, it should be fairly self-evident how it fits back onto the bobbin case - the spring lays across the **** in the bobbin case, through which the thread is pulled, so that the tip of the spring with a small right-angle bend just sits down into the aperture where the thread comes out. Now, importantly, the two screws are different sizes ... the one with the smallest head holds the spring onto the bobbin case and is screwed-down firmly through the hole in the flat end of the spring. The larger screw adjusts the thread tesnsion and is screwed through the hole with the slight conical sides. Now the tension should be adjusted to 5g using a proper gauge, but failing that, insert a bobbin loaded with a thread such as Metrosene and thread the bobbin case up. hold the end of the thread so that the bobbin case hangs on the thread - it should not move/unreel itself. If it does, adjust the tension screw (the bigger one) a little bit at a time until it doesn't unwind. The approximately correct tension is obtained when the bobbin will only unreel when you **** the thread upwards gently. You can fine adjust the tension to get the correct balance by ensuring the top tension is set to normal (red line) and adjusting the bobbin tension until the stitch lays properly in the fabric - use different colours top and bottom to check this. Be aware that the bobbin thread tension varies quite alot with only a small rotation of the adjusting screw, so take it is small steps.
Hope this helps.

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.