- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
is this the first time you use a sewing machine? if you are very familiar with the way the thread is pulled out of the bottom spool, I'd say you need a technician, here is how to install bottom spool in case you don't know. after filling spool, pull thread out through the small gap on the side of the spool holder, then holding the small arm on the holder outward insert the spool holder in to the socket and release after fully inserted. after that the thread should come out the top by manually turning the machine to lower needle
This video covers replacing the plastic step tread on the Stairmaster SM916 and 7000PT Stepmill. (The procedure shown for the plastic step tread replacement can also be used for the Stepmill and Gauntlet.) Remember that if replacing one step tread, all step treads should be replaced. A general rule if one tread is worn it is likely all other treads are worn in the same manner.
Tools Needed: Rivet Fastener Removal Tool, Safety Goggles, Snap Ring Pliers (Gauntlet, Stepmill and 7000PT may require a 1/2 inch Nut Driver or 1/2 inch Wrench instead of Snap Ring Pliers), Clean Rag, Flat Head Screwdriver, 1/2 inch or 12mm Deep Socket, Rubber Mallet
Begin by removing the side cover for access to the step shafts. Then position the steps as if you were going to step up on the unit.
Start by removing the snap ring or nut from the step shaft. Inspect the snap ring (if equipped) and replace with new if over sprung. Lift slightly on the step to remove the bearing and outside washer. Keep note the orientation of parts for reassembly. Push against the step shaft so as to push it out through the other side. There is another washer on the inside of the chain link. Continue pulling the step shaft out.
Once you have the step shaft half way out, you can get your hand inside to hold the step up. Then go ahead and pull the step shaft the rest of the way out. You can rest the bottom portion of the step on your knee and gently fold the top portion under.
You will need to remove your knee so that the bottom portion of the step can be flipped so that the plastic tread is against the floor.
Using the flat head screwdriver, remove and discard the 10 pushnuts affixing the plastic tread to the step. Remove the old plastic tread.
Put the new plastic tread in place so that the 10 plastic ribs are facing up through the metal step.
Next, using the 1/2 inches or 12mm deep well socket and rubber mallet install the new pushnuts. Place a new wave washer and pushnut over each plastic rib. Place the socket over new wave washer and pushnut. Using the rubber mallet, tap against the socket to pop the new pushnut into place. Repeat for all 10 pushnuts.
After replacing the plastic tread, it is time to reinstall the step shaft.
Reinstall the step shaft from the side it was removed. Get the step shaft started into the chain. Be sure to reinstall your washer between the chain link and the step assembly. Lift up on the step and push the step shaft into the first part of the hinge (about 2 inches). Align the bottom portion of the step with the top portion and continue pushing the step shaft through. You want to be sure that you have reinstalled the washer between the step and chain link on the other side. Now that the step shaft is in place, you should reinstall the outer washer, the step shaft bearing, and lastly the nut or snap ring.
Roll the steps down to the next step and repeat. Continue with the process until all 8 step treads have been replaced. Plastic Tread Replacement Video for Stairmaster Stepmills SM916 7000PT
try changing the needle rethread the machine top & bobbin make sure the bobbin is inserted correctly into the bobbin case if these suggestion don't help,,then the machine needs to be checked by a sewing machine technican to see if it's out of time
If the thread breaks at the needle and is feeding smoothly from the spool, you may have the tension too high. It is impossible to say what the setting should be because the knob rotates all the way around several times. Loosen it off until you see needle thread pull to the back of the quilt, then tighten until it just balances the interlocking of the stitch in the fabric. Test with little swirls, that's most likely to pull needle thread to back.Also, check that the needle is properly installed and that the hook to needle timing and clearance are good.Nesting of thread underneath usually happens if the foot lifter is left up or the tread is not fully in the disks of the tension unit.
these are the best setting i have found for sewing through thick materials, specifically leather and vinyl:
top tension- between 8 and 9
bottom tension- between 4 and 5
stitch length between 3 and 4
stitch type: 2
that is just what works best for me, i have a brother xl-2600i