Sewing machine repair - cleaning and lubrication is important

1, the first step maintenance is "clean", cleaning is the key to (try to be cleaned once a day)
When using the machine, you have to pay attention to what? That is "clean." If you can do routine maintenance on the machine, you can not make dust, lint accumulation, failure does not occur, you can make the machine in a good state to be used.
Also, in the cleaning of the machine, but also it can be found in some unusual circumstances. Fault in the machine for repair, most due to accumulation of dust or lint caused.
Not only to ensure a clean swept sewing machine, but also to discover anomalies. For cleaning, the maintenance is essential.
Of course, not necessary that the upper surface of the needle bar and looper shaft a little oil it did not. Just remove dust, wipe gently enough. For parts shape very complicated place, use a used toothbrush cleaning, you can easily remove dust. Also, some of the more acute on the part of the sewing machine in the cleaning process, should be very careful not to hurt.
Key parts cleaning
It is not just for the sewing machine do not make it fail, but also to ensure the quality of sewing, there are five of the most important places. For these places if they can thoroughly clean to be cleaned, then you can sew a beautiful stitch. These places, in order for cleaning, it is recommended to clean once a week.
① machine needle around (Photo 2 clean needle bar)
② around the hook (Photo 3 cleaning around the hook) / around Looper (photo 4 looper around cleaning)
③ tangential knife around (切布切 knife) (Photo 5 tangent cleaning mechanism)
④ within the oil pan (photo 6 cleaning)
⑤ overall clean (including machine) scrubbed, cleaned
※ different models, different shapes, it is important to clean the place is the same.
2, maintenance of the second step is to "lubricate", lubrication is to protect (as far as possible lubrication once a day)
Oil selection:
As used in the sewing machine JUKI "JUKI pure oil", there are four types. When the machine for maintenance, use the most appropriate machine pure oil.
● About sewing machine oil (grease) description:
JUKI genuine oil is No.1, No.2, No.18 these three species, cleaning (sewing machines, machines and other hand was enough scope). Their properties vary. Even genuine oil, but does not apply if you use the type of oil, it would cause the oil inside the machine can not be recycled, as well as oil spills.
Location refueling point
Key parts of the adjustment amount of lubricating oil
a, fuel supply sewing machine rotary hook adjusting method (be sure to turn off the power supply)
This fuel adjustment screw, fuel adjustment method to confirm please proceed as follows. (Please refer to the machine installation instructions detailed description of the adjustment method.)
1, lifting the presser foot, so-spin 30 seconds or more.
2, the test paper copy paper like every 5 seconds into the bobbin is rotating below. In the measurement, do not let the paper moved. Also, be careful not to let your fingers touch the high-speed rotation and so the hook.
3, then the paper will leave the linear traces of oil. According traces in the wide, can determine whether the proper amount of oil.
Traces of oil in one ... of the width of 2 mm is normal. Depending on the sewn products, there will be changes in the case of oil, but if you reduce too much, at high speed sewing machine, the hook will be burned, be sure to pay attention to this point.
b, on the lower shaft oil wick setscrew
When the adjustment screw can not adjust the amount of oil, there may be garbage clogging the lower shaft fixing screws wick. Then the need to remove the hook, clean or replace the wick about new products. In addition, because of the lower shaft fixing screws relatively soft material in the installation, please note.
adjustment c, head of oil
Facial oil generally does not require adjustment. However, in the case of the head of oil or less oil precipitate more serious, make adjustments in the following order. Remove the panel, located on the axis of rotation of the fuel adjustment pin, adjusted for fuel. This unit is not a screw, but the pin, can it be rotated. When adjusting the face when the oil does not come out, it may be the face of the oil from the oil pump to the device has a problem. In addition, if the bottom surface of the oil precipitate excessive facial, then there may be from the face to the circulation pump of the circulation mechanism problem.