This project is relatively straight forward… Cleaning and also servicing a Kenmore design 158.1755. The 158.1755 was made in Japan by the Maruzen Sewing machine Factory. The manufacturing run because that the 1755 was between 1970 and also 1971. The 1755 device is a functional and an extremely forgiving all metal sewing machine. Straightforward to thread, straightforward to adjust, and easy come sew. It features two built in stretch stitches, in addition to the standard ziz-zag and straight stitch. The number of decorative and pattern stitches expands to 14 through inserting plastic cam discs right into the cam mechanism accessed through a sheathe plate ~ above the optimal of the machine. The device produces a very an excellent and consistent straight stitch and also a very nice satin stitch. Pattern video camer stitches space very an excellent as well.

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Under the hood is an every metal gear driven sewing mechanism. The oscillating spaceship hook is additionally driven by a set of stole gears. All of this is propelled by a an effective yet quiet 1.2 amp motor. Strength is ceded to the balance wheel via a dual belt reduction drive. The sewing machine’s body is cast aluminum, together is the balance wheel. The top and front sheathe is made out of metal. The paint is enamel. The needle plate, needle bowl insert, and the bobbin covering plate room stainless steel and also sized for bigger hands and easy accessibility to the failure area come insert the failure case. All in all, the 1755 is a really robust, tough, strong, powerful, and sturdy sewing machine. Yet none of this is “special” or “unique” come the Kenmore 158 series line-up. In fact, that is reasonably common for a Kenmore and it is one of the factors that this all metal vintage Kenmore’s room such a an excellent value.

One the the nicest features, as well as it’s capacity to sew well, is Kenmores are easy to clean and maintain. This particular an equipment has an unknown history. It showed up v some marks native use, consists of a few small scratches and a few paint chips ~ above the sewing device bed. The drive device showed the usual discoloration native oil varnish buildup. The sewing device turned smoothly and every one of the stitch features operated smoothly as well. But… this is not unusual for a Kenmore that this vintage.

After mine initial evaluation, I chose that every this device needed to be a complete cleaning and also servicing. Well… if was simply a matter of cosmetic cleaning and also oiling, I can stop here. This maker is in store for a small more. The course, the human body of the device will it is in cleaned, however he sewing mechanisms will be deep cleaned to remove all traces the old oil and grease. Every one of the plates, fittings, failure assembly, and also removable small bits will be ultrasonically cleaned. The motor will certainly be partly disassembled to polish the armature and also clean the brushes. The anxiety assemblies, both the top assembly and the fail case, will be disassembled and also ultrasonically cleaned. So… here is the procedure in pictures…

First, all of the covers, the balance wheel, the belts, and also the motor is eliminated from the machine… This enables easier access to clean the internal mechanisms.

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Disassembly of the instrument is really not important so they room cleaned in place. The just assemblies gotten rid of are the bobbin winding assembly, the optimal presser foot adjusting assembly, and also the presser bar spring. This makes it much easier get right into tight places, and it is a laborious process to get every one of the components cleaned and de-greased. Because that me, the easiest way clean this assemblies is by using a small utility brush and a 20% systems of “Krud Kutter”. Unlike commodities like 409, Fantastic, purple Power, or other comparable detergents, Krud Kutter is non-toxic and environmentally safe… that means it won’t damages the finish on the sewing machine. Still, out of an abundance of caution ns don’t permit any laundry detergent to sit on the enameled surface too long, so wiping any kind of drips or operation is important. The is also important to keep detergent from obtaining into the oil feet in the parts noted for routine oiling. This is straightforward to execute by covering the oil hole through a noodle swab as the components are gift cleaned. After cleaning the assemblies in the needle bar area, the cam and drive mechanisms in the sewing machine arm, and the assemblies under the bed, these locations are sprayed through a irradiate coat of WD-40. This displaces any type of lingering water and also detergent, and leaves a safety film.

The next step is come clean the spaceship hook gear box and also re-grease the gears… The yellow stuff is old grease and it is eliminated with dentist picks and a tiny blade screw driver. ~ cleaning turn off the residue with a stiff utility brush, the gears room re-greased v Tri-Flow grease.

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before…
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After…

Did you an alert how clean the bed mechanisms are? The next step is to service the motor… This only requires the engine brush and rear motor cover removal.

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Armature will certainly be polished in place.
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Polished and ready for reassembly

After reassembly and oiling, comes the disassembly and also cleaning of the stress and anxiety assemblies.

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optimal Tension parts Laid out in Order prior to Cleaning

After cleaning…

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after ~ Cleaning

The next snapshot is important to show… it reflects what can hide in the fail case and also wreaks havoc with acquiring a an excellent tension balance and/or intermittent stress and anxiety problems. If you find yourself having actually to readjust the peak tension repetitively while sewing a project, this might be the culprit… If you think this may be your problem, and don’t want to mess through a very little screw and adjustments, simply replace it… they space pretty cheap.

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Before…

The little leaf spring performs the very same task together the stress and anxiety discs in the height tension mechanism. That is adjusted with a small screw to control the clamping force, or “drag” ~ above the failure thread. If you look closely, friend will check out corrosion top top the failure case, and also crud on the sheet spring… all of it is directly in the object path. Often overlooked, this is a an extremely important part of servicing a sewing machine. After ~ a soft bristle stole wire wheel, the is an excellent as new.

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an excellent as new…

The optimal tension components after cleaning…

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Meanwhile… every one of the parts removed previously have to be ultrasonically cleaned… climate soaked in WD-40 (except the fail tire). A more step is taken v the failure winding assembly. The is soaked in 99% alcohol to remove any trace the the WD-40.

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All that the part are reassembled ~ above the machine, and attention is turn to clean the exterior the the machine… Not much to say here other than the device case, covers, and also balance wheel room cleaned of any dirt and also old oil. Kenmore enamel repaint is tough and looks great when clean.

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After the device is assembled, it is lubricated v tri-flow oil, readjusted for thread balance and feed dog operation, adjusted, tested, and…. That’s it!

The result is a quiet, powerful, smooth to run sewing device that provides a stitch as good as new… and also it will certainly for another very long time.

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Well, ns hope girlfriend gleaned some good information and tips about the measures you may take to clean your Kenmore.