1. Clean first, then oil
2. Only one drop per oiling point, except the presser bar wick
If you want to do it properly, you should remove the hook mechanism, which may never have been done. Here's how to do it:
|pull slide plate out|
|angle it so it comes out, avoid damaging the enamel|
|remove needle, foot and bobbin|
|Clean out the dirt. Most will be really filthy|
|nylon brushes are excellent|
|This is removed next. It's going to be hard. If you can't, clean around it|
|remove feed dog screws|
|prise these two lugs outwards a little|
|lugs out, wedge a screwdriver so hook comes off when wheel turned|
|lugs have moved, hook is ready to lift off|
|clean everything so it's at least this shiny|
|to reassemble, the screwdriver will be on the other side, wheel turned opposite way|
Replace the bobbin and slide plate. Again, careful not to damage the enamel and put it in at an angle.
Well, now we have that over, move on to the end plate. Remove it and notice that every piece of moving steel has a small oil hole. If it doesn't or you can't find it, oil it anyway.
Take note of how stiff the hand wheel is before oiling this then compare it again afterwards. It's my experience that this area contributes most to a machine's stiffness, so you'll be doing the most good here.
|turn the hand wheel, oil every joint and the needle bar|
|Here are just two points. Exactly one drop each.|
Now, tip the machine back. I rested mine on the lid turned sideways. Turn the hand wheel to see what moves and oil it. Remove the two black metal covers and oil in there too (marked with arrows), or vaseline would be better for this, since it will stay a lot longer. Vaseline closely matches Singer's gear and motor grease, which isn't available any more.
|If aluminium, the serial number is stamped underneath|
At this point, if you're used to modern machines you might be wondering why on Earth you have to do all this when you don't on the modern plastics. Here's why: Plastics have oil included in the plastic and when it runs out, if your machine lasts that long, you are expected to throw the machine away and buy a new one. When your 201K was made, this would have been unthinkable. I developed the habit of cleaning and oiling after every eight hours of sewing and be happy that my machine sews a perfect stitch and will last forever. At the same time, replace your sewing needle.
|Just a few places that need a drop|
|Several oil points on the top|
|someone has greased it|
Now, the other things are to look at the drive belt. If it needs a new one, do not buy a round rubber belt: Those belts cause the motor to strain. Get a fibre belt like the machine is supposed to use and adjust the motor so this belt is loose. It is not like a car's fan belt, where tight is good. If you over tighten the drive belt on a sewing machine it will slow the motor and wear the bushings out very quickly. It will also give you poor control over the speed, so keep it as loose as possible without slippage.
The original bulbs were 25W and were extremely good. When I buy a machine it normally has the original Singer bulb or a 1960s 25W replacement that still works. Really, they made things that well a long time ago. Still, they get very hot and you might be better off with a 15W replacement. They produce the same amount of light but the burn you sustain when you touch it is only second degree instead of third. Saves on hospital bills and skin grafts. I buy Riva bulbs which are exactly the same size as the original and they're still made in Germany.