UhOh! You serged with pins too close to the edge and broke your serger’s knives.
How to replace the knives
For the 1034D Model
You can buy a set on Amazon from HoneySew fairly inexpensively, around $8.00 USD.
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.