Have a Necchi model 5147. Have just moved and machine ran great before move. Hooked machine up after move and it now runs slow. Have machine pluged directly into wall outlet and light seems bright enough. Any suggestions?

If it is an old mechanical machine, apply a drop or 2 of oil every place that metal rubs against metal. (Gently wiggle the handwheel and watch where things move.) Do NOT oil belts, cams, or plastic gears. After oiling the top of the machine, don't forget to take care of the moving parts in the lower part of the machine! The move the levers and dials and oil those moving parts too.

Applying heat from a handheld hairdryer may help speed up the process.

http://www.fixya.com/support/t14712975-need_know_oil_necchi_537l

http://www.sewusa.com/Sewing_Machine_Repair/Necchi_Sewing_Machine_Maintenance/535FA_534FB.htm

http://www.ehow.com/how_8734142_oil-necchi-sewing-machine.html

If you don't have any movement or hear the machine attempting to sew, you may have a burnt out pedal.
You should hear a slight hum when pressing on the pedal. If you don't hear a hum, the pedal is probably dead.
These can usually be ordered from the merchant who sold you the machine.

Your hook is moving correctly. Not all machines do a continuous circle. If it's not catching the thread, the timing is off. It's a great machine, and worth every penny to have it serviced.

I have just fixed a similar problem took about 30 seconds the customer had left the bobbin winder engaged

There is no reverse button, it is a lever.The stitch length lever also reverses the feed dogs - when down, it runs forward - at zero, it does not feed at all and when moved up, it reverses the machine. Set your stitch length by loosening the thumbscrew on the vertically moving lever and sliding the plate into position while moving the lever up to the desired mark. Tighten the screw and move the lever down to sew - to reverse just move the lever up until it hits the stop to sew the same stitch length in reverse.

If it is a belt problem, you should be able to hear the motor running. If you cant hear the motor running then it has to be the foot control or cord or possibly the motor.

Oil every moving part with WD 40

The Necchi machine has a lever in the bobbin area that lets you move the feed dogs up and down. If you accidentally moved that, the feed dogs are in the down position and won't feed the fabric forward. Make s ure you can feel the feed dogs slightly above the plate. If they aren't move the lever until they do. :)

sounds like the feed dogs may be down or not working. Watch to see if the little teeth are moving under the pressure foot when you stitch( try to run unthreaded and with foot up no fabricto check) May be a button to turn up the feed dogs.