PURPOSE : Needle Stick Injury Policy -No broken / blunt / spare needles / staples allowed in machine thread stand and entire floor. .To avoid any metal contamination with children’s products Rio Fashion Ltd. must pass metal detected prior to delivery the goods as well as all aspects of the Safety Requirements stated in agreement we followed accordingly. …
Below steps shall be taken for all children’s products and need to aware about Needle & Sharp Tool Policy
Fresh needles should be issued through inventory log only, after receiving the broken / blunt needles.. Needle Stick Injury Policy replacement / Control Procedure.
Clippers or scissors must be securely attached to the work station or machine.
Minimum neck stretch must check as per measurement spec for all children wear. Also mentioned that no minus tendency acceptable.
Broken / blunt needles should be logged immediately after replacing. Thread ends and float thread not acceptable for any children wear, moreover especially uncut thread not acceptable more than .5 cm.
General housekeeping must be of an acceptable standard to avoid stray metal components.
Goods coming into the factory must be contaminant free, and the pass responsibility for this up the supply chain to component and raw material suppliers and sub-contractors, such as printing and embroiderers.
All relevant components must pass through pull test at 90N/10 second for ensuring the attachment strength.
Trace the complete needle fragments onec it is broken and record. Products should be passed through the metal detector as finished goods after ticketing, but prior to being hung or boxed. By positioning the metal detector at this point, the manufacturer can ensure every piece of completed product has been detected and that no further metal contamination can enter the product.
That means all children products should be metal free and packing into carton should be at metal free zone.
Responsible
Personnel :
Manager Quality
Manager Production
Manager, Compliance & CSR
Working
Procedure :
All children’s product should be detect by metal detector machine & confirm
safety
Pins and staples
Sewing Needles (Hand and Machine)
Knitting machine needles and linking points and tagging gun needles
Scissors, clippers and other sharp tools
Metal detection (including needle detection)
Machine applied fasteners
Glued and heat fused components
Elasticized garments
Security of attached components
Conclusion
Needle Stick Injury Policy -For any needle issues, please contact task force co-ordinator. Designation of Responsible personnel to Review & Update if any change when required with the concern of management :
Needle Control During the factory visit it was noted that the facility has a 2 story Ansar building for security purpose. This building is separate from other building. This building is used as a dormitory for Ansar member. It has a Kitchen room, but there was no fire equipment such as- Fire Extinguisher, smoke detection system, Fire hose box etc.
Broken needle policy does not include the sample room
Area for needle exchange in case of broken needle too far away from production floor
Scissors, cutters and other sharp tools not attached to workstations but to worker’s arms
Redundant machines do not have the needles removed from them
No metal detection procedure implemented including 9 point calibration and logs of all products checked
Metal detector to be positioned in proper airport system leading into a metal free fenced in area that is restricted to certain personnel only and clearly marked
9 point calibration check not in place and missing relevant recording of calibration, metal detection checks, failures and garment destruction
Goods that are metal detected are not stored in a separate area until next successful calibration before proceeding
Any contaminated products (based on metal detection check) are not kept in a segregated area away from production and no procedure in place for their safe disposal
Product Safety & Satisfaction:
Product did not pass through metal detector.
Metal free zone in/out register not maintained.
Pictures of those working in the metal free zone should be displayed at the entrances.
Button pull testing procedure in place but only for childrenswear. Sampling and test frequency is not to George standard.
Gauge of button pull tester is in kg i/o Newton.
No holding time mentioned in record.
Designated person not aware of comparison of Newton, Kg and holding time.
All sharp tools to be attached also in the sample room.
Register needs to be maintained for all sharp tools.
Broken needle policy with time frame for needle change and also to be maintained in the sample room.
Broken needle policy not kept properly. Broken needle found in draw of needle person.
Scissors should not be kept on the iron tables.
Safety manual should be available from every customer.
Other Compliance Issue
Drinking water test report was not posted.
Drinking water sign was not posted.
Lunch west keeping area sign was not posted.
No smoking sign was not posted.
Notice board was not found.
First aid Box was not found.
PPE Use sign was not posted.(Hand Gloves, Musk, Head cover, Apron etc).
Canteen Facility have but canteen sign was not posted and food item list & price list was not posted.
Floor Evacuation Plan was not posted on Exit.
Aisles Marking & Arrow marking was missing.
Rubber mat missing In front of all LT Panel, SDB & MDB.
Fire Alarm Switch & alarm sign not posted.
Fire extinguisher user instruction was not posted every area.
Fire hose boxes/Cabinet user instruction was not posted.
Fire hose box responsible person list was not posted.
Emergency light sign was not posted.
Exit light was not found.
During the factory visit it was noted that –
No Smoking sign was not posted.
PPE Use sign was not posted.
Artificial Respiration instruction was not posted.
Some Diesel Drum are keeping open space infront of generator room.
There was no permission or certificate found for storage of flammable and combustible liquid.
During the Factory visit it was noted that-
Chemical handling procedure was not maintained Properly.
All Chemical Stored on floor instead of secondary Containment.
Conclusion
Sharp Tool Policy is mandatory for any factory. There was no Separation between Hazardous and Non Hazardous. There was no proper leveling on chemical Jar or drum. There was no posted MSDS (Material Safety Data Sheet).
Needle Replacement – To avoid any metal contamination with children’s products Auto garments must pass metal detected prior to delivery the goods as well as all aspects of the Safety Requirements stated in agreement we followed accordingly.
Below steps shall be taken for all children’s products:
Needle Replacement and Control Procedure
Clippers or scissors must be securely attached to the work station or machine.
Drill holes, spikes, Kimball gun Needle Replacement, notch punchers, tweezers, knives / blades etc must be counted out and in at the end of each shift by a Line Supervisor.
General housekeeping must be of an acceptable standard to avoid stray metal components.
Goods coming into the factory must be contaminant free, and the pass responsibility for this up the supply chain to component and raw material suppliers and sub-contractors, such as printing and embroiderers.
Products should be passed through the metal detector as finished goods after ticketing, but prior to being hung or boxed. By positioning the metal detector at this point, the manufacturer can ensure every piece of completed product has been detected and that no further metal contamination can enter the product. That means all children products should be metal free and packing into carton should be at metal free zone.
Due Diligence Policy
To ensure compliance with all laws and regulations that are applicable to the safety of the various products produced for sale, we operate a simple but practical approach to show that:
Auto garments has taken all reasonable steps or precautions (metal detection, disposal / separate marking of accepeted / rejected goods…etc.)
have exercised all due diligence to avoid committing the offence.
ensuring an audit trail of our sealing paperwork is available and complete and includes 3rd party / nominated party’s test reports.
Below step have been taken to ensure Due Diligence
the products’ characteristics tested by nominated testing lab
packaging as per customer instruction
instructions for assembly, maintenance, use and disposal
the effect on other products with which it might be used
labelling and other information provided for the consumer
Conclusion
Needle Replacement – the categories of consumers at serious risk when using the product, particularly children. We must through the children items onto metal detection.
There are different types of needles are developed day to day. In the early history of the human instinct of self-defense based, and made Clothes. Production technology was also very simple, is to use an awl made of animal bones do. Stitched weapon, these bones may only be used to pre-piercing cone to Lipi Sheng or Through the vines. The use of animal bones, horn, ivory manufacturing. Made by bone, horn, ivory. 17500 BC in the first hole of the needle has come out root. Manufacturing 3500 BC copper is used in the needle. 1000 BC iron began to be applied to enhance hardness than in the past many. You can visit more about some types of needles replacement system
Medical types of needles (surgery, minimally invasive surgical needles, acupuncture, medical america)
Instrument with a needle (flute, saxophone with a needle )
Electronic semiconductor with a needle (air filters, discharge needle, probe)
Nonwoven (needles)
Finishing with a needle
Hand stitches
Needle arts (ceramics, quilting)
Bur
Computerized embroidery needles
Schiffli lace with a embroidery needles
Costume with a needle (underwear, jeans, knitted …)
Leather (footwear) with a needle
Bindings with a needle
AD 1851 FRED. SCHMETZ GMBH (Blue Lion) was founded in Germany? Country Anchen
Types of needles
METAL CONTAMINATION
The in charge or nomination person should hold all the spares in a secured location, and only he shall be permitted to allocate to the operators.
Mechanics must ensure that no needles are left on the machines after servicing
The operator must not hold any spare needles.
The issues of needles against broken needle should be one for one basis.
Old and worn needles should be disposed off securely in a sealed container.
If a needle breaks, all parts must be found or case defined (in case part of the fragments cannot be found) before the work is allowed to continue. The in charge must ensure that proper searches have been carried out if all the parts of the needle have not been located.
Major industrial burs manufacturers with Butterfly Needle:
SCHMETZ (Blue Lion): engaged in production in Germany and India.
GROZ-Beckert (Baker): engaged in the production or testing in Germany or India.
ORGAN (organ): engaged in production in Japan and Vietnam.
ORANGE (orange card): South Korea engaged in production.
TNC (Triumph Needle): engaged in production in Taiwan
Dotec (Dott needle): Production in Zhangzhou, Fujian
World every year on average produce about 600,000,0000 support industrial burs
Production Process of All Types of Needles:
Production Process
Triumph Needle Company (TNC):
Tricyclic needles in 1978 in collaboration with the Japanese company Green wooden needles
1988 Triumph Needle Corp. (TRIUMPH NEEDLE CORP.)
And West Germany Aires card (Lammertz needle GmbH.) Technical cooperation
Major markets: China, Thailand, the Middle East, South America, Vietnam, more than 47 countries
Address: Taipei, Taiwan
Second, the material analyzed :/ Material report:
The company uses the best steel in Germany, with the most well-known of the Blue Lion needle (SCHMETZ NEEDLE) is the same supplier and is the same material, the German number is N100, similar to the Japanese steel SK3, is a high-carbon steel, but the difference is to add a small amount of N100 Cr (chromium), V (V) and Mn (manganese) alloys after heat treatment makes for a better performance in terms of hardness and toughness. N100 and the P (phosphorus), the impurity content of S (sulfur) can be said to approach zero, the purity is far better than the other countries in the current steel. It is the ball of the organization doing the best companies all over the world
Neede Illustration :
Needle ilustration
DBM: Blade diameter
HKFR:Length of scarf
DBO:Width of eye side
LAO:Butt to eye length
DDC:Tapered part diameter
LC:Shank to shoulder length
DK:Shank diameter
LDC:Shank to tapered part length
HT:Depth of scarf
LG:Total length
LK:Length of shank
OB:Eye width
OL:Length of eye
RBL:Width of groove
RGL:Depth of blade diameter without depth of groove
STEG: Depth of blade diameter without both sides depth of groove
Needlepoint Kits – Sharp Point:
Sharp point means:- Tip of the Needle looks like “V” shape.
Sharp Point
Needlepoint Kits – BALL POINT:
Ball point means:- Tip of the Needle looks like “U” shape.
Cause of Needle Cut:
Needle Size.
Size & Shape Of Needle Ball.
Needle Blade System & Shape.
How Can We Remove Needle Cut ?
Smaller needle size
Slim kn
KN+SPI
KK+KN
SPI POINT
Skipped Stitches:
Larger Needle Size
NY Needle
USP Shape Needle
USP Needle
Seam Puckering
Smaller needle size
Slim kn
Spi point
KN+SPI
KK+KN
Seam Puckering Construction Rules:
Must be use correct needle for the material/ product, e.g. rounded top of needle on knits
Must not use needles with blunt point, this to avoid fabric damage
Must stitch density should generally be 4 – 5 stitches/ cm, 10 – 12.5 stitches/ inch but must
be suitable for the specific product and thread
Must all exposed seams must be over-locked or covered with binding/ tape, if no other instructions have been given
Must have elasticity on seams matching to the product’s quality
Must use suitable thread tension/ elasticity matching to the material/ product
Must have an even and equal length on stitches
Seam puckering must use 4 thread over lock
Must have an even seam allowance, minimum 7 mm wide, after over locking. Width on seam
Seam puckering must allowance must be suitable for the actual material, e.g. some heavy knits need wider
Must seam allowance to keep stable
Must have no puckering/ stretched out seams, if no other instructions has been given
Must not have joint stitches at visible areas
Seam puckering must have tape/ reinforcement at shoulder seams
Must be stretchable enough to meet minimum extended neck measurement
Must 2 – needle top stitches should be made by 2-needle machine
Needle Selection Logic:
The external structure of the first election of the first needle. A. nature of the car object.
Soft and hard
Thick and thin
Fever or heat degree
Impact resistance B. Sewing Machine want to accomplish a step performance needle hole as small as possible (breakage rates may be higher) Measures: SPI, KN, KN + SPI, or drop the more straight stitch one. b better. (rigid needle is better) responses enhanced needle dry, a bigger needle
is the car color or adhesive under layer material not to be brought to the surface (decrease destructive) Measures: KN + SPI, HS + CL + CM design
functional or decorative effect (touch, thick line) Countermeasures : S, LR, LE
holes to increase the rate of low-jumper (and outlet must be high, hook line space to more) Measures: USP design
After the election of the structure, with a fit of the coating, further extending the life of the needle or
lower penetration resistance of titanium Long life ceramic membrane
Long life, reducing heat generation
Polymer film anti-adhesion, reduce heat to produce
diamond films – long life, anti-adhesion, reducing heat generation
Application of Butterfly Needle:
Sharp round point : Standard for blind stitch needles. For precise stitch sequences in lockstitch operations. A sensitive point, susceptible to damage.
Sharp Round
Example: Blouses, fine skirts and trousers, curtains
Round point with slightly rounded tip: Standard for all chain stitch operations
Round Point
Example: For fine, sensitive knitted fabrics, micro fiber, multi head embroidery
Regular round point: Most common for all kinds of lockstitch applications particularly for woven fabrics, artificial leather, coated fabrics.
Regular Point
Example: Shirts, trousers, various kinds of garments
Light ball point: For knitted fabrics and for wovens.
Example: T-shirts, underwear, fine sweaters
Application of Butterfly Needle 3 Point
Medium ball point: For elastic fabrics with Rubber or elastomeric contents.
Example: Sweaters, lace, under wear, Schiffli embroidery
Heavy ball point: For very coarse and open structured elastic fabrics.
Example: Sweaters, cardigans
Special ball point: For warp fabrics with high elastomeric contents.
Example: Underwear, orthopedic Clothes
Special ball point: For Schiffli embroidery applications.
Example: Curtains, tablecloth
Coating Needles:
Reduce Adhesion Trouble
Ceramic Coating Needle (CM)
Diamond Like Film Coating Needle (DLC)
Heat Proof Coating Needle (HP)
PVD Coating Needle
KN+SPI Needle
Coating needles
Features Titanium Needles:
HV 2000 ultra-high hardness
Beyond corrosive resistant stainless steel
Durable high penetration
Reduce the cost of the best weapon
2-3 times the life of traditional titanium needles
Feed of the arm machine is actually a chain stitch machine for chain stitch designs working with sew and stitch. It contains looper instead of bobbin. By this machine, multi thread chainstitch can be produced on garments. By this machine, stitch can be produced on heavy fabrics, like denim or jeans; it has opportunity of stitching by folding the fabrics. Different sizes of needle and thread dresses should be used in this machine depending on the thickness of fabric, for light thickness fabrics needle size should be lower and for heavy thickness fabric, higher needle size should be be used.
Needle and Thread Dresses Function :
For sewing light or heavy fabrics i.e. all kinds of side seam specially in the trouser side-seam are sewing by this machine. Needle is very important parts of this machine. needle and thread dresses of this machine should check regular interval for better performance sewing.
Parts of Sewing Machine with Label:
Parts of sewing machine with label is listed here-
Machine pulley
Presser foot
Front cover
Looper
Needle bar
Upper thread guide
Thread take up cover
Finger guard
Pulley cover
Needle and thread dresses
Features of the Machine including Sew and Stitch:
Feed of the Arm Machine
Multi thread chain can be formed by this machine.
It has opportunity of stitching by folding the fabrics.
Needle thread is interconnected with looper thread.
Feed of the arm is exact chainstitch sewing machine
Its appearance is difference in face and back side.
Adjustable sewing machine sew and stitch
Sewing machine needle sizes should be well fitted.
Procedure for Broken Needle:
Broken / Used needle record form, helps to identity the problem in production like sewer’s handling, the machine itself, the incompatibility needle to the fabric or needle to machine if there is a consistent return of needles within a couple of hours of production.
Steps to set up a strict needle policy:
Each operator is only entitled to the number of needle required to the machine ( i.e. single needle lock stitch need only 1(one) needle or double needle lock stitch machine need 2(two) needle to operate). No needle in process of operator except needle required during the first implementation of this policy.
Each line should have a person to issue and collect used / completed whenever broken needle replacement is required.
If during the operation a needle is broken it is a must for the line supervisor and operator to collect all the garments surrounding the machine and have it placed separately.
This bundle of garments should be properly checked or scrutinize under magnifying glass or by using a big magnets should pass on each pieces of garments. If broken pieces of needles are found, garments should pass through a metal / needle detector machine to ensure that it is free of needle. If not found then the whole bundle should be properly put inside the metal contaminated or disposal box for burning.
Designated person is now allowed to issue new needle after the above instruction have been carried out satisfactory.
All parts of a broken needle or used must be taped onto the report form immediately after exchange has taken place.
This policy must be strictly implemented because broken bites of needle found in garments may cause cancellation of order.
Broken / Used needle record must be return to acc. store for issuance of needle replacement if not they are not entitled for the issuance of needle replacement.
Please check old confirm all parts of broken needle are available.
If yes provide new needle keep and pest broken needle with all parts.
Keep record and document properly.
If any parts of broken needle are not found then.
Go for the metal detection for the whole bundle.
If found then –
Replace needle by taking parts and placing in the broken needle register.
Keep record and document properly.
If not found then –Tell all concerned the need for their extra
Care. Issue the new needle in place available
Components of broken needle register.
Stop production at that machine. Search the area. If no found with conveyor belt m/c detector. This bundle destroys and photograph should be taken.
Idle m/c should be needle free, before keeping m/c in idle, open needle and should be deposited to needle keeper and he/she will issue needle at the time of installing m/c in the line.
Specification of Chain Stitch Sewing Machine :
Specification of chain stitch sewing machine is shorted below –
Specifications Name
Specifications Value
Product Category
Sewing
Machine Category
Chain stitch sewing machine
Product Name
singer sewing machine
Product Model
According to Manufacturer
Product Class
New
Origin
China/India/Others
Brand/ Manufacturer
Name of Manufacturer
Agent in Bangladesh
No/Yes
Power
380v
Temperature
Normal
Certification
SGS/Others
Production Capacity
NA
Group
Chainstitch
Stitch per minute
5000-6000
Needle size
9,11,14,16,18,20,21
Thread per inch
8”
No of needle
2 needles
No of looper
2 loopers
Seam class
400
Description
Chain stitch sewing machine needle sizes should be same.
Feed of the Arm Chain Stitch Sewing Machine :
Sewing m/c maintenance check list
Sl. No.
Check point (s )
Corrective action (s)
01
Check the lubrication system.
The m/c pulley oil amount & the oil wick.
Oil level.
Oil circulation.
Oil condition.
If the amount in m/c pulley is less add oil.
02
Check the feed dog, needle plate and the presser foot.
If the feed dog is worn out replace it.
03
Check the lopper holder lopper bracket, needle guard.
If the needle guard is damaged replace / repair it.
04
Cleanliness.
Remove the face cover and clean it.
05
Check the safety devices take-up lever cover, belt cover.
Ensure the availability of safety devices of the m/c.
06
Check the electrical wiring, electrical motors clutch etc.
If the motor sounds abnormally, replace the bearings and the cork of the clutch.
Needle Gause Specification:
Needle
Nominal outer diameter
Nominal inner diameter
Nominal wall thickness
Gauge
inches
mm
tol. inches (mm)
inches
mm
tol. inches (mm)
inches
mm
tol. inches (mm)
7
0.180
4.572
±0.001 (±0.025)
0.150
3.810
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
8
0.165
4.191
±0.001 (±0.025)
0.135
3.429
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
9
0.148
3.759
±0.001 (±0.025)
0.118
2.997
±0.003 (±0.076)
0.015
0.381
±0.001 (±0.025)
10
0.134
3.404
±0.001 (±0.025)
0.106
2.692
±0.003 (±0.076)
0.014
0.356
±0.001 (±0.025)
11
0.120
3.048
±0.001 (±0.025)
0.094
2.388
±0.003 (±0.076)
0.013
0.330
±0.001 (±0.025)
12
0.109
2.769
±0.001 (±0.025)
0.085
2.159
±0.003 (±0.076)
0.012
0.305
±0.001 (±0.025)
13
0.095
2.413
±0.001 (±0.025)
0.071
1.803
±0.003 (±0.076)
0.012
0.305
±0.001 (±0.025)
14
0.083
2.108
±0.001 (±0.025)
0.063
1.600
±0.003 (±0.076)
0.01
0.254
±0.001 (±0.025)
15
0.072
1.829
±0.0005 (±0.013)
0.054
1.372
±0.0015 (±0.038)
0.009
0.229
±0.0005 (±0.013)
16
0.065
1.651
±0.0005 (±0.013)
0.047
1.194
±0.0015 (±0.038)
0.009
0.229
±0.0005 (±0.013)
17
0.058
1.473
±0.0005 (±0.013)
0.042
1.067
±0.0015 (±0.038)
0.008
0.203
±0.0005 (±0.013)
18
0.050
1.270
±0.0005 (±0.013)
0.033
0.838
±0.0015 (±0.038)
0.0085
0.216
±0.0005 (±0.013)
19
0.042
1.067
±0.0005 (±0.013)
0.027
0.686
±0.0015 (±0.038)
0.0075
0.191
±0.0005 (±0.013)
20
0.03575
0.9081
±0.00025 (±0.0064)
0.02375
0.603
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
21
0.03225
0.8192
±0.00025 (±0.0064)
0.02025
0.514
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
22
0.02825
0.7176
±0.00025 (±0.0064)
0.01625
0.413
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
22s
0.02825
0.7176
±0.00025 (±0.0064)
0.006
0.152
±0.00075 (±0.019)
0.0111
0.2826
±0.00025 (±0.0064)
23
0.02525
0.6414
±0.00025 (±0.0064)
0.01325
0.337
±0.00075 (±0.019)
0.006
0.1524
±0.00025 (±0.0064)
24
0.02225
0.5652
±0.00025 (±0.0064)
0.01225
0.311
±0.00075 (±0.019)
0.005
0.1270
±0.00025 (±0.0064)
25
0.02025
0.5144
±0.00025 (±0.0064)
0.01025
0.260
±0.00075 (±0.019)
0.005
0.1270
±0.00025 (±0.0064)
26
0.01825
0.4636
±0.00025 (±0.0064)
0.01025
0.260
±0.00075 (±0.019)
0.004
0.1016
±0.00025 (±0.0064)
26s
0.01865
0.4737
±0.00025 (±0.0064)
0.005
0.127
±0.00075 (±0.019)
0.0068
0.1734
±0.00025 (±0.0064)
27
0.01625
0.4128
±0.00025 (±0.0064)
0.00825
0.210
±0.00075 (±0.019)
0.004
0.1016
±0.00025 (±0.0064)
28
0.01425
0.3620
±0.00025 (±0.0064)
0.00725
0.184
±0.00075 (±0.019)
0.0035
0.0889
±0.00025 (±0.0064)
29
0.01325
0.3366
±0.00025 (±0.0064)
0.00725
0.184
±0.00075 (±0.019)
0.003
0.0762
±0.00025 (±0.0064)
30
0.01225
0.3112
±0.00025 (±0.0064)
0.00625
0.159
±0.00075 (±0.019)
0.003
0.0762
±0.00025 (±0.0064)
31
0.01025
0.2604
±0.00025 (±0.0064)
0.00525
0.133
±0.00075 (±0.019)
0.0025
0.0635
±0.00025 (±0.0064)
32
0.00925
0.2350
±0.00025 (±0.0064)
0.00425
0.108
±0.00075 (±0.019)
0.0025
0.0635
±0.00025 (±0.0064)
33
0.00825
0.2096
±0.00025 (±0.0064)
0.00425
0.108
±0.00075 (±0.019)
0.002
0.0508
±0.00025 (±0.0064)
34
0.00725
0.1842
±0.00025 (±0.0064)
0.00325
0.0826
±0.00075 (±0.019)
0.002
0.0508
±0.00025 (±0.0064)
Safety for Chain Stitch Sewing Machine:
Please turn of the power switch or disconnected it for any one of the circumstances of the followings –
When threading needles, adjusting thread take-ups, thread guides, and replacing bobbins.
When replacing needles, presser feet, needle plates, feed dogs, needle guards, horns, coth guides and other parts or accessories
Do not use power tools where there is risk to cause any fire or explosion.
When repairing the chain stitch sewing machine
When the operator leaves the working place or leaves the machine unattended
It clutch motors without brake pads are used, must wait until the motor stops completely.
