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A couple of possibilities: 1. Remove the belt. While using the foot pedal it is necessary to see if the motor moves freely without excess heat. If there is a problem the motor must be replaced or fixed.
2. Try to turn the machine without the motor attached by using the hand wheel. Does it move freely? If this is a problem the part that is causing the resistance must be found. Especially check the hook (under the bobbin case), needle arm and monitor moving parts.
3. Is the belt in good shape? If it is not so good then replace it.
4. While the belt is attached the motor must be cocked to allow the least resistance and most speed while the motor is running. This must be done carefully while the motor is running slowly. (foot control) The adjustment can be done most accurately this way.
5. Clean and oil all moving parts.
6. Make sure the bulb is the right size and not touching any of the metal surfaces.
try making sure you have your foot on the brake pedal, some cars won't come out or go into park without having you brake pedal depressed, if this fails you should see a specialist, most auto cars will start in neutral depending on age, but MAKE SURE THE HAND BRAKE IS ON HARD, good luck.
If the wheels spin free then I would look at the bottom bracket. All of the force you use for pedaling relies on the bearings in the bottom bracket being good. Are the pedals hard to turn by hand? Do the pedals themselves spin freely? If the wheels turn, this really only leaves these two rotating points as possible suspects.
Only thing that fixes itself after cooling is the main motor. Either motor is failing, or something is binding preventing tub from turning, or making tub hard to turn. Can have hair binding support rollers. Will need to turn tub by hand , counter clockwise to determine if it's hard to turn, if so remove tub and inspect rollers, if they don't turn freely replace rollers.
f you hear the motor humming and not starting at all it most likely has a severe friction problem with the drum or motor. It could possibly have some type of garment jamming the blower wheel preventing the motor from starting too.
Open the dryer door and manually rotate the dryer drum counter clockwise (CCW). It should take very little effort to rotate the drum. If it's hard to rotate that could explain why the motor hums instead of starting up. If it turns freely, shut the door and see if will start. If it still hums and not start it may have bad motor or a low voltage supply to the motor.
Hi, with your spark plugs in you are turning the engine over against compression, thats why its harder to turn. The binding noise could be your piston rings, buts its difficult to say without further information. Sorry
There are three possible reasons why the drum doesn't turn.
Broken belt. You replaced the so in this case it's not.
Door switch. The dryer will not operate if teh door switch is defective. It is inside the drier main housing near the door frame. You need to raise or open the top or front of the dryer to reach the switch. Replace if defective.
Motor. If the motor hums when the start button is pressed, the motor maybe burned-out. Check the dryer motor:
Check the blower fan housing for obstruction and manually turn the motor shaft.
If the motor is very stiff or cannot be turned manually, you need to replace the motor.
If the motor rotate freely, run the motor without the belt. If it runs fine, there maybe problem with the idler pulley or the clothes drum.
Rotate the drum by hand. If it is difficult to rotate it, correct any problem with the rollers or pulley. Reassemble the dryer and try it again.
If the motor hums but does not run on it's own even without the belt,but can be turned freely by hand, you need to replace the motor start capacitor or the motor itself.
Belt, Motor, motor start capacitor or Door switch. you going to have to open the back cover off and see what is taking place. check belt making sure good and tight, idler pulley may be worn also. If motor only making a hums sound when you press start it may be burnt out. you can check if the motor is good or bad by removing the belt and manually rotate the shaft motor pulley, if the motor is stiff and impossible to rotate manually, it also a sign the motor burnt out. if the motor turn and run freely without the belt, the problems maybe with the pulley or the drum, try to rotate the drum and making sure it rotate freely using very little effort. if door switch faulty, the unit will not work.