I need an instruction manual for the model 420x sewing machine

SOURCE: replacement foot pedal and wiring for Euro Pro

Here's a place that carries all the pedals. Many are used by various brands, and go under different names for different machine companies. The euro-pro manual has the manufacturer's name and the model #, or you can browse the drawings of pedals to match your own. My euro-pro 9110 uses a model also used by viking and huskevarna. This place carries the cords as well.
Good luck.

http://sewingmachine221sale.bizland.com/store/page36.html

SOURCE: help me find a manual for a euro pro 7133 sewing machine

Contact Shark @ 18003614639 they will send you a manual. They were very helpful and courteous.
may we all find some peace in thse manuals.

SOURCE: friends broke needle on my euro pro multi stitch sewing machine.

According to Euro-Pro.com
Where can I buy new needles?Answer: The needles are universal and can be purchased at any sewingmachine notion department. The size and type of needles should beappropriate to the fabric used. See the needles and fabrics chart inyour instruction book.

http://www.euro-pro.com/europro/faqdetail.aspx?modelno=9000
has all the information including a downloadable manual (pdf file)

SOURCE: User Manual download

hi there. here u go

http://www.euro-pro.com/europro/faqdetail.aspx?modelno=9105

SOURCE: I NEED A INSTRUCTION MANUAL FOR EURO-PRO DENIM

it is not free, but here is were to find one...
http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Euro_Pro_Sewing_Machine_Threading/euro_pro_1260_threading_diagram.htm
good luck, star