Tampilkan postingan dengan label bobbin case. Tampilkan semua postingan
Tampilkan postingan dengan label bobbin case. Tampilkan semua postingan
Drop-in Bobbin Case Position
Here's a picture of an open Drop-in Bobbin System. This is a picture I took of a Bernette, but is similar to a Singer 7422. The bobbin holder (sometimes called a bobbin basket or bobbin case) is in its place in the top picture. You shouldn't have to loosen any screws to remove the bobbin holder. But if it's hard to get out, turn the hand wheel until the opening in the hook is just below the retention finger. The hook is the metal ring that goes around when you turn the hand wheel. To put the bobbin holder back in, there's a small bump at the front, that can bounce on the spring. And a bigger, flat bump on the opposite side that the finger will touch.
Some other sewing machine mechanic wanted to charge $40 to put a bobbin holder in!?!? You can do this!!!
201 Bobbin Case & Retaining Ring Re-Installation
First we covered How to remove the bobbin case, then we went over How to remove and replace the rotating hook assembly. Now that we've got the hook assembly area nice and spiffy, time to get everything back together. You may have heard that it's difficult to get the bobbin case and retaining ring back together, but you're going to be thrilled with how easy this is. First, put a drop of oil in the hook assembly, on the little track where the bobbin case will ride.
Then drop the bobbin case back in.
To be sure the bobbin case is seated correctly, you can move the little "shark fin" part to the left and right, ensuring the bobbin case rotates smoothly.
Now we turn our attention to the Retaining Ring. I've used a magic marker to put a red dot on it in a very particular place, where the outer edge of the ring starts to curve inwards. You don't have to do this to yours, though it may help; I've done it here for the purpose of illustration.
Now take a look at the hook assembly. There are two clips, but there's only one we're worried about: The clip that has a screw to the right side of it.
What we want to do is take the Retaining Ring, and place it on top of the bobbin case...
...in such a way that the red dot is lined up with the clip. (You might need to move the bobbin case's "shark fin" out of the way to get the ring in position.)
We are NOT snapping or clicking the ring into position, we're just resting it on top of the bobbin case with the red dot lined up with the clip. There's no force required, you're just dropping it into this position.
Next, reach back with your left hand and grab the balance wheel so it doesn't move.
Then, take the little silver Singer screwdriver...
...and stick the butt end of it down next to the butt end of the Retaining Ring.
Now, use the screwdriver butt to push the butt end of the Retaining Ring, as shown in the photo below.
The Ring will rotate slightly, then click into place.
Now the Retaining Ring is securely holding the bobbin case in place. Rotate the "shark fin" around a bit to be sure everything's turning smoothly.
Next, take the Position Plate and screw it back in. When you do, make sure the "shark fin" is located like you see it here:
Well, that's pretty much it. Reattach the feed dogs and the needleplate, and you're good to go.
Once you've done this several times, you won't need to remove the needleplate, feed dogs or position plate. You might have to rotate the handwheel to get the pieces in position for you to manipulate them, but it's very do-able.
How To Remove a 201 Bobbin Case
Taking the bobbin case out of a 201-2 is simple. Dead simple. These instructions look long, but you'll only have to follow along with them once or twice. After you do this a couple times, it'll be as easy as removing the gas cap on your car.
You will need the correct tools: A screwdriver with good bits, and the small, silver Singer screwdriver (pictured up top) that came with many machines.
If you don't have the Singer screwdriver, find the tiniest flathead (slotted) screwdriver you can find. To see if it's the right size, take out a dollar bill. See those letters at the top of the bill that say FEDERAL RESERVE NOTE? The width of the screwdriver blade's edge should be about the same height as those letters, as seen in the photo below. If it's much smaller or bigger than the letters, it will probably not work. (Update: If you don't have U.S. money to check with, click here.)
People probably find 201 bobbin case removal difficult because they don't know what the separate parts look like. When I looked down at the hook assembly for the first time, I couldn't tell where one part ended and another began, so I didn't know what the heck I was supposed to be removing, and the drawing in the Adjuster's Manual was too small for me to make anything out. So here I'll use huge pictures to explain. Note that in the photos, I have the machine pointed towards me.
The first part of the hook assembly you are going to be removing looks like this:
For simplicity's sake we'll call it the Retaining Ring. (If you ever need to order this part from a supplier, its official name is the Rotating Hook Bobbin Case Retaining Ring.)
The Retaining Ring is held in place on the assembly by two little clips on either side, like two hands reaching up to hold the brim of your cowboy hat onto your head on either side. The Retaining Ring holds the bobbin case in place, and after we remove it, the bobbin case can be lifted out.
Once you get good at doing this, you won't need to remove the needleplate, feed dogs and position plate (though you may want to for cleaning). But we'll remove it in this tutorial to make things easier.
I've removed the needle and presser foot for visual clarity.
Next I remove the slide plate and the bobbin.
This machine was just acquired and the previous owner has left a thread tangle. Pull every last bit of thread out.
Then remove the needleplate and feed dogs. If you need instructions for how to do this, click here.
Now you see this bar, called the Rotating Hook Bobbin Case Position Plate.
Undo the two screws and take it off. (Again, you won't need to once you get good at this, but it will give us more room the first time.)
Now we're ready to get down to business. The Retaining Ring has a butt end, as we saw in an earlier photo. Look for it and recognize it. Also look for and recognize the two clips. If you don't see these parts, rotate the handwheel until you do.
The clip near the butt end has a little notch next to it. In the photo below, I've rotated the handwheel to move everything around so you can see it better.
Stick the blade of the Singer screwdriver in that notch.
Then rotate the screwdriver clockwise, just 90 degrees, while pressing the screwdriver gently downwards.
Once you've rotated the screwdriver 90 degrees and pressed down, the clip moves outward. It should look like this:
Here's what it looks like from a side view:
Next GENTLY push down on your end of the screwdriver, using it as a lever, so the blade end of the screwdriver goes up. Be gentle, you don't have to move the screwdriver very much at all. You are NOT trying to pry the Ring off, just moving it up a millimeter or two to free itself from the clip. With gentle pressure it will free itself from the clip with a soft click.
Now the Retaining Ring is sitting on top of the clip, not under it anymore.
Almost there. Now, with your right hand, reach over to the back of the machine and hold the balance wheel steady, so that it doesn't move.
With your thumb and forefinger of your left hand, grasp the Retaining Ring.
Then just rotate the Retaining Ring counterclockwise ("to the left"), very slightly. It will free itself from the other clip with a quiet click.
That's it, now you can take it off. (You can do it with your fingers, but I removed it with tweezers here because my fingers were too big in the photo for you to see the Ring.)
Now the bobbin case can be lifted out, easy peasy.
Next, all you've gotta do is clean out the race with a Q-Tip. Have fun!
When you're ready for the next steps, click over to How to remove the actual rotating hook, especially if there's a lot of junk under there that needs cleaning out; then check out How to get everything back together.
You will need the correct tools: A screwdriver with good bits, and the small, silver Singer screwdriver (pictured up top) that came with many machines.
If you don't have the Singer screwdriver, find the tiniest flathead (slotted) screwdriver you can find. To see if it's the right size, take out a dollar bill. See those letters at the top of the bill that say FEDERAL RESERVE NOTE? The width of the screwdriver blade's edge should be about the same height as those letters, as seen in the photo below. If it's much smaller or bigger than the letters, it will probably not work. (Update: If you don't have U.S. money to check with, click here.)
People probably find 201 bobbin case removal difficult because they don't know what the separate parts look like. When I looked down at the hook assembly for the first time, I couldn't tell where one part ended and another began, so I didn't know what the heck I was supposed to be removing, and the drawing in the Adjuster's Manual was too small for me to make anything out. So here I'll use huge pictures to explain. Note that in the photos, I have the machine pointed towards me.
The first part of the hook assembly you are going to be removing looks like this:
The Retaining Ring is held in place on the assembly by two little clips on either side, like two hands reaching up to hold the brim of your cowboy hat onto your head on either side. The Retaining Ring holds the bobbin case in place, and after we remove it, the bobbin case can be lifted out.
Once you get good at doing this, you won't need to remove the needleplate, feed dogs and position plate (though you may want to for cleaning). But we'll remove it in this tutorial to make things easier.
I've removed the needle and presser foot for visual clarity.
Next I remove the slide plate and the bobbin.
This machine was just acquired and the previous owner has left a thread tangle. Pull every last bit of thread out.
Then remove the needleplate and feed dogs. If you need instructions for how to do this, click here.
Now you see this bar, called the Rotating Hook Bobbin Case Position Plate.
Undo the two screws and take it off. (Again, you won't need to once you get good at this, but it will give us more room the first time.)
Now we're ready to get down to business. The Retaining Ring has a butt end, as we saw in an earlier photo. Look for it and recognize it. Also look for and recognize the two clips. If you don't see these parts, rotate the handwheel until you do.
The clip near the butt end has a little notch next to it. In the photo below, I've rotated the handwheel to move everything around so you can see it better.
Stick the blade of the Singer screwdriver in that notch.
Then rotate the screwdriver clockwise, just 90 degrees, while pressing the screwdriver gently downwards.
Once you've rotated the screwdriver 90 degrees and pressed down, the clip moves outward. It should look like this:
Now take the little screwdriver, and stick it under the edge of the butt end of the Retaining Ring, like this:
Here's what it looks like from a side view:
Next GENTLY push down on your end of the screwdriver, using it as a lever, so the blade end of the screwdriver goes up. Be gentle, you don't have to move the screwdriver very much at all. You are NOT trying to pry the Ring off, just moving it up a millimeter or two to free itself from the clip. With gentle pressure it will free itself from the clip with a soft click.
Now the Retaining Ring is sitting on top of the clip, not under it anymore.
Almost there. Now, with your right hand, reach over to the back of the machine and hold the balance wheel steady, so that it doesn't move.
With your thumb and forefinger of your left hand, grasp the Retaining Ring.
Then just rotate the Retaining Ring counterclockwise ("to the left"), very slightly. It will free itself from the other clip with a quiet click.
That's it, now you can take it off. (You can do it with your fingers, but I removed it with tweezers here because my fingers were too big in the photo for you to see the Ring.)
Now the bobbin case can be lifted out, easy peasy.
Next, all you've gotta do is clean out the race with a Q-Tip. Have fun!
When you're ready for the next steps, click over to How to remove the actual rotating hook, especially if there's a lot of junk under there that needs cleaning out; then check out How to get everything back together.
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