Vintage sewing machines produced by the city of Podolsk are deservedly considered the standard of reliability and durability. These mechanical devices, created in the Soviet era, still successfully cope with sewing dense fabrics, leather and jeans where modern electronic analogues can experience difficulties. Owning such a unit requires an understanding of the principles of its operation, since automation is completely excluded in favor of pure mechanics.
If you have become the owner of a rare model with manual drive, it is important to immediately tune in to a careful attitude to detail. Instructions for use For such devices, it is based on regular care and the correct sequence of actions of the operator. Despite the age of the technology, it can serve for decades with competent treatment.
Unlike modern electrical devices, the old Podolskaya machine It requires physical participation in each stitch. This is not just a tool, but a mechanism sensitive to the quality of threads, the condition of the needle and the timeliness of the lubrication. Understanding the design of the shuttle node will be the key to the perfect seam.
Design features of the manual drive
The basis of any manual model is a massive stanza and drive mechanism, transmitting the force from flywheel to needle. In older versions, such as Podolsk 2 or Podolsk 142 in hand version, a classic crank-shaking system is used. It converts the rotational movement of the flywheel into the translational movement of the needle driver.
The key element is shuttle-work It's horizontal. It is he who forms the interweaving of threads. In manual models, the speed of rotation of the shuttle directly depends on the speed of rotation of the hand. This requires the operator to produce a certain rhythm to avoid breaking threads or skipping stitches.
⚠️ Warning: Never rotate a flywheel counterclockwise while working. This can lead to entanglement of the thread in the shuttle and damage to the needle point, which will require complex disassembly of the knot.
To control the process, a foot, pressing the fabric, and a regulator of the stitch length are used. The mechanics of these nodes are simple, but require periodic cleaning of the pile. Dust, mixing with old lubricant, forms an abrasive paste that accelerates wear of rubbing parts.
Preparation of the device for the first launch
Before starting operation, the old machine must be brought into working condition. Even if the mechanism is easy to scroll, the factory lubricant could dry inside. First, inspect the device for corrosion and mechanical damage.
The preparation process involves removing the conservation lubricant if the machine has been lying idle for a long time. Use soft rags soaked in kerosene or a special solvent to wipe visible metal parts. Then make sure to put fresh on it. sewing-oil All mobile connections.
Pay special attention to the area of the shuttle and needle driver. A drop of oil should get on the axis of the shuttle and in the guide needles. Do not use motor or vegetable oils – they thicken over time and can “coke” the mechanism.
☑️ Preparation of the machine for work
Rules for filling the top and bottom thread
The quality of the string is 90% dependent on the correct filling of the thread. In hand-held models Podolsk The path of the thread is strictly regulated. The top thread passes through the nitrogen rulers, tension regulator and thread puller. It is important to make sure that the thread does not jump from the grooves.
The bottom thread is refueled into a spooler cap. Here, the moment of clicking is critical when inserting the cap into the shuttle. The thread should come out from under the spring plate with a slight effort. If the tension is weakened, there will be loops from below, if it is pulled, the thread will break.
To adjust, use the screw on the spring plate of the shuttle. Turning the screw clockwise increases tension, against - reduces. This is a fine tuning that requires test runs on a patch of fabric.
| Line defect | Probable cause | Elimination method |
|---|---|---|
| Loops from below. | Weak tension of the upper thread | Increase tension by the regulator |
| Loops on top | Weak tension of the lower thread | Pull the screw up the shuttle |
| Thread break | Burrs on a needle or a blunt point | Replace the needle with a new one |
| Passage stitches | Incorrect needle installation | Turn the needle with a long groove to yourself |
The secret of the perfect line on dense fabric
To sew jeans or leather on a hand typewriter, use needle number 100 or number 110 and slightly reduce the tension of the upper thread. It will also help to put thin paper under the seam, which then easily breaks off.
Techniques of working with flywheel and fabric
Working on a handheld typewriter requires coordination of both hands. The left hand directs the fabric, the right hand rotates the flywheel. The main rule: the rotation should be uniform. The jerks lead to uneven stitch length and possible breakage of the needle.
Start sewing, making a few turns of the flywheel "on yourself" so that the needle enters the fabric. Then continue to rotate in the working direction. The speed of rotation should correspond to the speed of the material. Do not pull the fabric with your hands - it curves the needle.
Stitch length regulator It allows you to change the size of the step. For sweeping, set the maximum length, for the main line - the average (2-3 mm). Remember that the change in the length of the stitch should be made only with the raised leg or stopped machine.
When turning the fabric, lower the needle into the material, lift the paw, turn the cloth around the needle, lower the paw and continue sewing. This will provide a neat angle without shifting the layers.
Adjustment of leg press and needle pressure
The force of the paw press is regulated by a screw located in the upper part of the sleeve of the machine or above the needle. For thin fabrics (silk, chiffon), the pressure is weakened so that the material does not deform. For thick cloths or drapa, the press is strengthened.
The wrong pressing leads to the fact that the fabric does not advance or, conversely, crumples under the needle. In hand-held models, this parameter often requires adjustment “by eye” in the process of work. If the fabric is tight, check if the screw of the pin is too low.
There is also a regulation of the height of the leg lift. It should be sufficient for free passage of the fabric, but not excessive, so that the geometry of the toothed slat does not break. The rack shall protrude about 0.8 mm above the needle plate in the upper position.
⚠️ WARNING: When working with very thick seams (such as flexing jeans), do not put excessive force on the flywheel. This can lead to a breakage of the needle driver or deformation of the rod. It is better to sew this area slowly, swaying the flywheel.
Typical malfunctions and ways to eliminate them
Even the most reliable Podolsk It may require the intervention of a master or self-adjustment. The most common problem is a break of the thread. If the thread breaks sharply, with a characteristic sound, check the needle point and the presence of burrs on the needle plate.
If the machine starts knocking or rattling, stop immediately. Most likely, the lubricant dried or a foreign object got into the mechanism. Disassembly should begin with the removal of the shuttle compartment cover and the removal of the pile.
Problems with the advancement of the fabric are often associated with wear of the reiki teeth or weakening of the screws of the attachment. In older models, the veneer on the flywheel can also wear out, because of which it scrolls idle. In this case, the replacement of the veneer or the entire shaft is required.
90% of stitching problems are solved by replacing the needle, properly filling the thread and cleaning the shuttle from the pile. Don’t rush to disassemble complex nodes until you rule out these simple reasons.
Regular maintenance prolongs the life of the mechanism. After each session, brush the dust with a soft brush. Every six months, carry out a complete cleaning and lubrication. Keep the machine in a case to protect it from dust and moisture.
Which needle to choose for a handheld Podolskaya machine?
For classic models of Podolsk, needles with a round bulb are used (flat-circular or completely round, depending on the year of release). For type models Podolsk 2 Needles No. 75-90 with a thickened upper part are often suitable. It is important that the long groove on the needle when installed looks towards the nitrogen ruler (usually from left to right or front to back, check by marking on the case).
Can I make knitwear on an old handheld typewriter?
Sewing knitwear on a straight-line manual typewriter is difficult, since there is no elastic stitch. However, this is possible when using a special foot for knitting or laying cigarette paper. It will also help to install a needle with a rounded tip (such as Jersey), which does not cut through the loops of fabric, but pushes them apart.
How to lubricate a sewing machine if there is no special oil?
In extreme cases, high-purification spindle oil can be used. It is strictly forbidden to use sunflower, olive or motor oil. Vegetable oils polymerize over time, turning into a sticky resin, which will block the mechanism. Machine oil for sewing machines has no smell, is transparent and does not thicken.