Cobra Class 4 Sewing Machine Instructional Video by Al Bane

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Instructional video on the Cobra Class 4 sewing machine by Al Bane at Al Bane for Leather
www.albaneforleather.net
Time Topic
0:00 Machine Description
1:25 Loading Thread Stand
1:35 Winding Bobbin
3:11 Threading The Needle Side
5:20 Loading Bobbin
6:49 Replacing Needle
7:40 Preparing To Sew
8:19 Compound Feed Explained
8:47 Stitching A Straight Line With The Roller Guide
9:33 Stitching On A Curve
10:22 Stitching A Right Angle
11:19 Backtacking
12:09 Removing Textiles
12:47 Changing Presser Feet
14:38 Switching Out The Feed Dog
20:33 Installing Roller Edge Guide
22:24 Lubricating - Inside Front Of Machine
23:30 Lubrication - Lower Right Cover Plate
23:55 Lubrication -- Back Of Machine
24:10 Lubrication - Oiling The Hook
24:31 Lubrication -- Oil Points Marked In Red
25:00 Bobbin Winder Friction Disc Adjustment
26:10 Adjusting Drive Belt Tension
26:44 Adjusting Servo Motor Speed
27:44 Presser Foot Slide Adjustment
28:40 Adjusting Hook-Needle Timing
29:46 Removing Work Platform
30:25 Installing Work Platform
31:25 Presser Foot Pedal
32:10 Adjusting Stitch Length
32:54 Troubleshooting Thread Tension Problems -- Loops On Top
33:44 Troubleshooting Thread Tension Problems -- Loops On Bottom
34:20 Troublehooting Tip -- Can't Remove Workpiece
35:05 Troublehooting Tip -- Can't Remove Workpiece 2
35:40 Troublehooting Tip -- Machine Won't Move Textile
Edited by silverwingit, 29 March 2013 - 09:56 AM.

Опубликовано:

11 июл 2024

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Комментарии : 89

@mgurbulak Месяц назад

i bought a similar machine in 2024 (typical 441) and your video is helping me a lot after 11 years. thank you so much.

@Kwozziedoll 8 лет назад

Thank you, I learnt something today. I have been sewing for 50+ years and had never been told or shown how to turn at a corner as well as you have explained. Making sure that the needle goes past bottom centre. The times that I have been left frustrated by skipped stitches I can't tell you. When you say that this is a basic skill I felt so stupid. I love You Tube for this very reason. You are never too old to learn something new. (And HELPFUL). Thank you again.

@rustyschmidt7238 Год назад

Here it is August 31, 2022 nine years since you posted your video and this video is still spot on for the Cobra 4 machine I just purchased. Thanks very much !

@albaneforleather Год назад

Thank you for pointing out the anniversary.

@mlefree 11 лет назад

Thank you, thank you, Al Bane! Believe it or not, I received my new Cobra Class 4 one day prior to your posting this most informative and useful instructional video! I'd say that it not only complements Steve's video, but exceeds it in many ways (don't get me wrong; I love Steve dearly). More detail, better video, easier to understand. Simply superb! I know I'll be viewing it and taking careful notes for a long time to come. Gratefully, Michelle.

@MsMarlysRae 10 лет назад

I like that you added a list of every teaching point below the video. I refer to this several times a day and sometimes you just want to go straight to the point you need help on. This list is a great list to have for reference. Thank you, Al Bane.

@scarletshoes 3 года назад

Thank you

@2JobsStillPoorUSA 11 лет назад

Al. Thanks so much for doing these videos. I don't have a Cobra, but much of this will work on my Artisan.

@Blackford86 7 месяцев назад

The word thread path that is very important, thread, path and sewer should know about their thread path

@robertbencomo2528 8 лет назад

I have a Cowboy 4500 that I just bought which had a very bad instruction manual which is hard to see. This video was fantastic as the 4500 is close to the same and I was able to follow this video[s instructions to oil, thread and finally adjust my machine which was pulling loops. Fantastic instruction recommended to anyone who has a leather sewing machine. Thank You

@WillPower1818 11 лет назад

Wow! What a fantastic video. I wish I would've had this in December when I received my class 4, I just couldn't hang on to Steve's video. This was very helpful and would love to see more videos on leather tips from a Pro! Great work and thank you for taking the time to share this video. Steve owes you a pile just in phone calls he won't have to answer!! Hahah

@GottliebGoltz 4 года назад

Thank You a bunch. G-G

@cherylcrossan3625 10 лет назад

Wonderful video, watch it over every time I have a question about my Cobra 4. Cheryl

@albaneforleather 4 года назад

Rest in peace Cheryl. I really enjoyed our friendship. The world is a much sadder place without you.

@laceymyhre3121 3 года назад

Excellent video, as usual. Thank you.

@WichitaMule 10 лет назад

Hi, my new Cobra 4 is on it's way to me now but I just wanted to say thank you for an extremely good video. I think I'll watch this a few more times before I get started and I think it will give me a heads up for when my machine arrives. Thanks

@coconuthair 11 лет назад

Great instructional Video! I picked up mine in Feb 2013. I spent the whole weekend trying to get it to stitch and work right. I bugged Steve on that following Monday, with his encouragement I finally got my tension right. I wish I had your video back then - Steve’s video is good but yours is much more clearer to understand. I also bought his Cobra 5110 Post this is a great machine as well. You should buy this Post Machine and do an instructional video as well ;-)

@kevincansler8272 11 лет назад

This is a very good instructional video. It helps me because I just bought a Juki 441 clone (the gray one) and I am still at the rank beginner stage. Thanks for sharing.

@SleepyHolowLeather 11 лет назад

Thanks for the great video! Very helpful for me as new owner!

@MasinskiKutak 5 лет назад

I like a strong and powerful sewing machine.

@FrankMakesStuff 10 лет назад

Very impressive at 8:27, seeing a motor turn the machine that slowly yet still have enough torque for the needle to penetrate the work is a key factor when deciding on a machine.

@Kingangel422 8 лет назад

Excellent video

@kathylumsden 4 года назад

Thank you very much for this extremely helpful video!

@user-ug3lh8uz8j 7 месяцев назад

Спасибо за видио, нужная и полезная информация.

@albaneforleather 7 месяцев назад

I'm sorry I can't translate this

@jorgegomes4833 10 месяцев назад

Muy vien su video gracias

@dag36523 11 лет назад

Awesome I had figured out most but I was not sure I was getting all the oil points... Thank you sir better than "Duck Dynasty" !!

@leathersaddlehorse 10 лет назад

Excellent video! I bought a Ferdco Pro 2000 seven years ago, and am still learning the finer points of it. The machine threads differently but most of the other adjustments are spot on, and this video made me aware of some oiling points that I have been missing. It's a wonder I haven't had trouble! The manual that came with my machine is one of those line drawing illustrations with arrows that are impossible to tell whether they are going up and down or sideways. Someone should think about translating these manuals into REAL English! Thanks a million.

@JWheeler331 3 года назад

Thanks for this video. It’s been a real help for my class 4.

@tomanderson3007 6 лет назад

Excellent instructions. Thanks for sharing.

@CMJ559 8 лет назад

Thanks for making this.

@RAMPHD 8 лет назад

Excellent, and detailed video. As a Cobra 4 Owner, very helpful. This is not my Juki 562! Let's just say, a bit more "drama" here to get it right.

@butchcampbell2062 8 лет назад

Al Thanks for the outstanding video's!! They are so step by step understanding. Great Job. I have a problem with a thread pick up lever on a Cobra class 4... It is coming up to far and hitting the top on the face plate and binding the machine. do not know how to adjust this problem ..... Your help is much appreciated

@reneemoore6249 4 года назад

1:30 bobbin. 3:13 thread needle side, 5:20. Loading bobbin. 6:50 replacing the needle. 7:40 preparing to sew. 9:34 stitching on a curve. 10:24 stitching a right angle. 11:20 back tacking. 12:50 changing the presser feet. 14:40 changing the feed dog and cleaning the hook

@lmrleatheroriginalslmr8959 9 лет назад

Thank you so much! I have a Cobra Class 4 and LOVE it, however I bought it in 2009 and wish I saw this video first. I moved recently and trying to sew a leather bag but for some reason it's not working well, my stitches and timing are off. Can you advise me since I'm in North Carolina. I will check the forum on facebook as well. Lori

@LebecEgirlSews 5 лет назад

Great Video. Thanks. What is the size of the longest stitch the Cobra Class 4 will sew?

@WillPower1818 11 лет назад

I would love to see a video showing how to fine tune tension when knots are showing on top when going from thicker to thinner on same project, I just can't figure that part out

@pequodexpress 2 года назад

I bought my 441 clone in 2009. I like it, but the 1341/42 clones seem to be a better "do-it-all" machine. I don't think those clones were available back then.

@Dahna_ 2 года назад

Al can you explain to me why the holster plate and stirrup plate makes it easier to sew holsters and stirrups? What do they do exactly? Can they be used for any other type of wet molded goods?

@albaneforleather 2 года назад

Come find me on Facebook. I run a group called tips and tricks with Cobra class leather working equipment and we can have an open discussion there.

@denturemaster 10 лет назад

What is the smallest needle and thread the machine can effectively use?

@WichitaMule 10 лет назад

Hello Al; Can you give me an idea of how many "clicks" it takes to change the stitch lengths. I know that's a relative question, but could you just give me a general idea please? Thanks, and your video has helped me tremendously on my new Cobra 4.

@ageorge7140 7 лет назад

I have that one thanks

@alpoyeca 7 лет назад

Hi Al, I seen most or your videos and very informative especially to the rookies like me, Question, I have a 441 clone, I most use 207 tread, one of my issues is that some of my sewing thread has more wax than others as I use more than one color, I normally sew 2 layers of 4 to 5 OZ, in total 9 to 10 OZ, the issue I'm having it is that the tread that has more wax does not have enough friction on the bobbin plate, even when I close the screw all the way (for the thinnest thread) I can see the locking stitching is more to the top, even when the 1st and secondary tension disk on the machine are all the way on the loose position, I have tested other threads with less wax and have no issues as there is more friction upon passing by the bobbing side plate, is there a trick somewhere that you know that may help, the easiest way will be getting sewing thread with less wax but will like to use the spools I already have. Any help will be appreciated...

@albaneforleather 7 лет назад

Get a new bobbin tension spring preset tight from The Leather Machine co. Then you can tighten the top tension devices to match. This way you have some latitude with the adjustments when swapping thread.

@ericp726 8 лет назад

Sounds like you were having some audio issues during the backstitch section which is what I really wanted to see.

@ageorge7140 7 лет назад

would you suggest using the serrated feed dog on knife sheaths and holsters

@albaneforleather 7 лет назад

Aaron George no tje serrated feed dog will leave marks on your leather. The Leather Machine Company offers a smooth face feed dog and presser foot system.

@albaneforleather 8 лет назад

The Cobra Class 4 is a lock stitch machine. typically lock stitch machines use a needle and a hook to create a lockstitch. the lock stitch is typically found in the center of the material. the positioning can be influenced by thread tension. too much top tension will produce loops on top. when we see loops on top we are actually seeing the lock stitch rising to the surface of the workpiece.

@WillPower1818 11 лет назад

Does this machine have the positioning system? Mine does so I'm wondering if your 90 degree angles and back tacking techniques are still necessary if the machine has EPS?

@user-zj6ts1xo8j 8 лет назад

Здравствуйте!Очень хорошая машина.

@chriss8259 6 лет назад

Hi Al, I love watching your instructional videos on sewing. I noticed on one of your videos that you sometimes lift the needle from the work piece when you back tack and sometimes you dint lift the needle all of the way. Which technique have you found to work best? Thank you

@albaneforleather 6 лет назад

Chris S it depends who you ask. Some people believe that you can cycle i Reverse at any point. I find it's less problematic to cycle the reverse lever with a needle just passed the bottom dead center.

@chriss8259 6 лет назад

Thank you Al. I enjoy your videos.

@drosenberg8018 2 года назад

Has anyone experienced an issue where the center foot and presser foot rub? The enbtire center foot is offset slightly to the right and when using the double toe or right toe presser foot, the center foot slightly rubs. This is regardless of how it is rotated.

@albaneforleather 2 года назад

I would sand the foot then polish it.

@Dinonuggy619 2 года назад

Mr Bane is it normal for the belt to twist when working? I get it to fall in correctly but after a full turn it twists

@albaneforleather 2 года назад

They do that once in awhile. It could be that your machine is not aligned directly above the speed reducer. Check and see that the pulleys are lined up perpendicular to each other. Sometimes a belt will break in that way and there's no fixing it. It doesn't hurt anything. Unless it makes the hand wheel jump when the belt flips over. That could affect your control of the work piece. Basically there's nothing wrong unless you feel that it's a problem.

@Dinonuggy619 2 года назад

@@albaneforleather 👌🏼👌🏼 Thank you sir

@cncmoh 9 лет назад

What needles are you using. I'm using the chisel point that came with the machine but i don't get straight stitches like yours. I'm planning to get the round points. What do you suggest?

@albaneforleather 7 лет назад

I would get one package of each size that way you can test your setup and select the best needle for the operation

@kamalkamel6185 3 года назад

I am looking for a machine for me to sew leather gloves for me for the pilots and use it from the cold in the winter and leather clothing machines and leather gloves for clothing as well.

@readytostartshooting 3 года назад

What presser foot would you use for sewing belts. Please

@albaneforleather 3 года назад

I use the left toe

@albaneforleather 3 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MfHfU2xqWPU.html

@gtribe7 11 лет назад

Thanks for confusing me even more!!! LOL.

@tariqhassan387 3 года назад

Hi .... where can we get this gauge with Roller ?

@albaneforleather 3 года назад

leathermachineco.com/

@tariqhassan387 3 года назад

@@albaneforleather Thank You .... Sir

@tariqhassan387 3 года назад

@@albaneforleather cheaper option ?

@albaneforleather 3 года назад

You could probably check on eBay but I think you get what you pay for.

@tariqhassan387 3 года назад

@@albaneforleather i am using 132K single needle & I don't need expensive .... Old Machine 40 years

@kcstott 3 года назад

FYI the speed setting is the motor rpm in hundreds of rpms, so 20 = 2000 rpm and 13 = 1300 rpms S1 = start speed in percentage of full speed 10 = 10% of full speed 90 = 90% of full speed S2 = is motor direction don't change it if your machine is running fine S3 = maximum motor speed S4/S5 i believe is setting for the electronic positioner and need not be adjusted. keep in mind the machine comes from the factory set at 2000 rpms on the motor speed. Depending on the servo motor you could have a max speed of 3800 or 4500 rpms. there is no mention of a max speed that I could find in the manual. I'd highly advise not exceeding 2000 rpm. As I don not believe the machine was designed with that rate of speed in mind. this machine is a tractor not a sports car.

@beckichan3 Год назад

This might be a stupid question...but will someone please explain what he means when he says Top Dead Center and Bottom Dead Center??

@albaneforleather Год назад

When the needle goes all the way to the top just before it starts coming back down. That is top dead center. The inverse is true, when the needle goes all the way to the very bottom right before it starts coming up. That is bottom dead center.

@beckichan3 Год назад

@@albaneforleather Thank you sooo much! I've watched this video at least 100 times

@albaneforleather Год назад

When the needle travels to the very top of the stroke that is top dead center. Like 12:00 on a clock face. One second past 1:00 is now passed top dead center. The same thing with 6:00 or bottom dead center. So when referencing the position of the needle typically we refer to a quarter inch past top dead center which is the moment the hook releases the needle thread. At this point we can remove the workpiece because a needle thread is no longer being held by the hook

@katrinarobertson7173 8 лет назад

I have a question. Phil M. Kelton Jr. of Dragon Backbone says that his Cobra class 4 sewing machine has a needle on top and bottom. Is this true? His claim is that his Cobra class 4 sewing machine: "ties a knot inside each hole punched superior every time. One needle on top and one on the bottom does the magic."

@albaneforleather 7 лет назад

the Cobra class 4 sewing machine is a single needle compound feed machine. the type of machine that you are referring to is called an awl machine.

@richardmontanaro8975 9 лет назад

I have one and have had many issues with set up, tensioning, getting the stitches to be correct. This is not a JUKI, as I have owned a Juki 562 for 30 years and it has been flawless. This is a China made machine and has been quite troublesome for me. Yes, Steve has been helpful, but I cannot get anyone to my shop to set this machine up properly. I have already had to return one Head as the bobbin pickup and timing were off. A major hassle.

@albaneforleather 9 лет назад

***** There is a forum group on Facebook called Tips and Tricks with the Cobra Class 4. Lots of helpful information can be found there.

@WannabecopAdamHolen 10 месяцев назад

You failed to mention that it was operator error on your part. And you happened to break the same thing twice, all the years leather machine co has been in business only 3 of those have broke and you happened to break it twice. Leather machine co repairs juki, artisan, and multiple other machines, before becoming the owner Steve has been a mechanic for 52 years, he made cobras so that they could be just as good as jukis, you only pay for the name when it comes to juki, they also cost $7,000 the cobras only cost $3,000 yet still outperform juki most of the time, Steve has fixed thousands of jukis over the years.