Pfaff 7570 needle does not centralise when first switched on. Needle hits foot.

Perhaps the ruffler foot is defective (a piece bent or something) that is causing the needle to deflect.Install a brand new needle. Make sure you are installing the ruffler foot properly, ie the fork needs to be around the needle holder.

How To Use Ruffler Foot
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Pfaff creative 7570 Manual

https://www.manualowl.com/p/Pfaff/creative-7570/Manual/184474
Manuals and user guide free PDF downloads for Pfaff creative 7570.

needle could be bent or the machine could need a adjustment

insert the needle all the way up or, lift the needle shaft or readjust the timing

put the twin needles in the needle holder and then thread the first
needle like you normally would then add a second spool or cone
of thread then thread the machine the same way you did with the first
needle and then thread the second needle

Hello,

The Pfaff 7570 Creative Designer is a computerized sewingand embroidery machine that has the ability to connect to the computer, andhave embroidery designs sent to the embroidery machine. The sewing andembroidery machine has many features, including hundreds of general sewingfunctions, a separate embroidery module, and on-screen editing features. TheCreative Designer 7570, manufactured in the 1990s, was the first sewing andembroidery combination machine ever made by Pfaff.

1. Usingthe Sewing Machine
1 Turn on your sewing machine using the "On"button located just below the turn wheel on the right side of the machine.Thread your Pfaff 7570. Note that Pfaff sewing machines thread from left toright, not right to left like other sewing machines. The upper tension discsshould be raised at their highest position while threading, and the presserfoot should be raised up until you thread the needle. Drop the presser footright before you thread the needle. The prevents thread problems during use. 2 Insert a full bobbin and retrieve the bobbin threadthrough the thread plate. Raise your sewing foot and needle to its highestposition; hold the needle thread taught with your left hand, lower the needleinto the thread plate using your right hand, and then raise the needle. As youraise the needle, the needle thread will catch the bobbin thread, and pull itup. There should be a loop of thread intertwined with the needle thread. Usetweezers, your finger, or a straight pin to retrieve the bobbin thread that isvisible through the thread plate, and pull it through the plate. 3 Place the fabric under the presser foot, and drop thepresser foot. Choose the stitch you want to use from the top stitch display,right above the top thread feed. Press the '0-9" button located on thesewing machine's front panel, and a display screen will come up. Input thethread number, and press the 'OK' button located on the sewing machine's frontpanel. The stitch will display, and you are ready to sew. Repeat Step 3 foreach stitch you want to use.

2. SettingUp the Embroidery Unit
1 Turn the sewing machine off. Take out the embroiderymachine unit, locate the connection bushing on the back of your embroideryunit, and match it up with the connection bushing on your sewing machine. Theconnection bushing should be located next to a yellow sticker on yourembroidery unit, and somewhat resembles a serial port on a computer. Slide theembroidery unit onto the sewing machine with the sewing machine turned off. Connectto the bushing carefully as you slide the embroidery unit onto the sewingmachine. Use your embroidery unit manual if you need assistance. 2 Insert an embroidery card. Your embroidery unitshould contain an embroidery card labeled embroidery card 1. Use that or useanother Pfaff 7570 card that you own. Turn on the sewing machine. 3 Open the bobbin case area just below the threadplate, and lower the feed dogs by pushing the feed dog switch to the right.Press the card button located on the front face of your sewing machine. Adisplay with pop up; choose embroidery designs or monogram and a new screenwill pop up with your design choices. Choose the design you want, and press"OK." A checklist screen appears. Do everything on the checklist, andpress "OK." Use your embroidery unit manual if you need help. 4 Start embroidery by pressing the foot pedal. At thistime, your hoop should already be attached to the embroidery unit becauseyou've already gone through the checklist. Your embroidery manual displayscolored picture diagrams that are very helpful in understanding everything inyour checklist menu.
Thanks for using fixya

Did you change the needle to a new one out of a package? Also make sure that the needle is inserted to the top of its holder, press up hard when you change it. No luck? Maybe its knocked out of time...then its going to need to see a pro.

Derek

Use at least a 14/90 needle and make sure the presser foot lever is down.

Your hook/needle timing is off and it needs to be seen by a technician before you damage the hook. Some dealers can do a 24 hour repair for an additional charge.
sewman7

Always thread the machine with the presser foot up. This keeps the tension disks open while you are threading. Open the lid on top. Put thread on spool holder. Go directly to your left and down the path on the farthest left. Go all the way to the bottom and bring the thread up on the path closer to the spool. Hook the thread through the metal piece that moves up and down while sewing. It should be in the highest position when threading. Run the thread down and clip into the small metal holder above the needle. Pull down needle threader, draw thread across front of it from left to right and pull through needle.