UhOh! You serged with pins too close to the edge and broke your serger’s knives.

How to replace the knives

https://youtu.be/bqFP5eJ9yDE     or 

https://www.youtube.com/watch?v=kudk0XfVhkE

https://youtu.be/iaWu0nhYWGY

For the 1034D Model

You can buy a set on Amazon from HoneySew fairly inexpensively, around $8.00 USD.

https://www.amazon.com/2pc-Serger-Knife-Overlock-Blade/dp/B017BXF94A/

For the 1034DX model

NOTE The upper knife blade is a different part#

Admin Karen Wood reports you will need the proper knife parts linked below

The lower blade is shorter on the 1034DX.

The 1034DX Lower blade is XB1459001   These are also the correct blades for other models 3034D,4234DT, 5234PRW

The 1034DX Upper blade is XB1687001 These are also the correct blades for other models  3034D,4234DT, 5234PRW

Call Ken's Sewing Center or SewingPartsOnline

for the replacement knives if you cannot find the correct ones on Amazon.