20 Most Recent White Sewing Speedylock 1600 Mechanical Sewing Machine Questions & Answers

I think that you must have some of your fabric and lint in your machine. Take a brush ( I use a new paint brush and clean your machine looper areas really well, oil then Totally rethread, take your thread for each guide and treat it like floss going into all of the grooves so that they are seated properly. This should do it, getting your thread seated is the most common problem with overlockers not chaining.

White Sewing... | Answered on Jan 31, 2018

Probably can be , take it to a repair store and have them service it .

White Sewing... | Answered on Oct 06, 2016

You can get sewing machine manuals online at sewingmanuals.com. I didn't see the superlock 2500 but there were other superlocks. They may thread the same way.

White Sewing... | Answered on Sep 18, 2015

Search the internet:
Brand + Model + the word "Manual"


White Sewing... | Answered on Aug 22, 2015

If the handwheel is really stiff and the machine is making awful noises, then your machine may need oiling. Don't know if this is the case with your industrial machine, but it may be something to consider.

White Sewing... | Answered on Feb 23, 2015


Speedylock 1600 video

My wife picked up one at a thrift store for $20.00. She gave me the job of looking into a manuel for it. I think that the original video that came with it can be found on youtube at...

A copy of the manual can be found at

A review for it can be found at

on Jan 15, 2015 | White Sewing Speedylock 1600...

Servicing the Timing is NOT a home fix

White Sewing... | Answered on Apr 22, 2014

Timing issue, take for a Service

White Sewing... | Answered on Apr 22, 2014

Push and hold the reverse button for 7 seconds and see if that fixes it.

White Sewing... | Answered on Jan 31, 2014

All serging machines run in reverse, the hand wheel turns reverse compared to regular straight stitch machines which run counter clock wise. I need more information, My email is [email protected]

White Sewing... | Answered on Jan 26, 2014

Try removing thread #3 from the tension altogether. If this doesn't work, then try using a different spool of thread. Some break easier than others. If this doesn't work, try rethreading your serger from the the beginning. Upper looper first, then lower looper, then needle. Test on scraps.

White Sewing... | Answered on Dec 08, 2013

When you thread the serger, your suppose to start threading the 3rd spool (left to right) first, then the 4th spool, then thread the 2nd spool which ends up in the second needle (left to right), There is a lever or bottom looper that the thread must go through before placing thread through the 2nd needle. Finally, the last spool to thread is the 1st spool (left to right). Follow the threading pattern and once you put the thread through the two loops that look like springs, turn the wheel at the right toward you until you can see like a lever with a ****, thread that **** from the back then put the thread through the machine to the right. Turn the knob to toward you again until the upper looper is showing, then you have the put your thread through the hole in that looper then through the first needle. You should now have 4 thread toward the back of your machine which you need to place under the presser foot and to the left side of the machine. There is also a VHS video that goes with the machine to help explain how to thread your serger. Also be sure that each spool of thread is in the tension of the upper colored tension wheels. If it is not, then your stitiches will be loose. Good luck and I hope this helps. I had to watch the video several times before I got it. If you don't have the video, try ebay for and perhaps you can obtain one. The video is Speedylock 1600, instructional video, USA Part #136000016, Perhaps you can contact White and see if they have one you could purchase.
Good Luck Serging!!!!

White Sewing... | Answered on Nov 14, 2013

Not finding what you are looking for?
White Sewing Speedylock 1600 Mechanical Sewing Machine Logo

159 questions posted

Ask a Question

Usually answered in minutes!

Top White Sewing Sewing Machines Experts

Cindy Wells

Level 3 Expert

6164 Answers

Irene Tulloch

Level 2 Expert

498 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a White Sewing Sewing Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

White Sewing Sewing Machines

  • White Sewing Sewing Machines

Most Popular Question

re threaded changed needles adjusted

  • Sewing Machines