Have a roper dryer and kid turned drum wrong way and knocked idler pulley loose.theres 2 positions (slots) that are side by side the pulley can go in. Do I use the front or back one?

1st, Unplug the Dryer from the Power Supply.
You will need the Exact recommended Replacement "Idler Pulley".
With the Belt Ribs Facing Toward the Dryer Drum, position the belt on the tell tale Ring Mark on the Drum letting the Belt Hang Down below the Drum.
Place The New Idler Pulley into the Slots on the Inside Dryer Bottom located near the Motor Mounted Pulley.
(Face The Idler Pulley Toward The Motor Mounted Pulley)
(Hold the Idler Pulley in place in the slots)
Take the "Hanging Belt" & run the Whole Loop "UNDER" the Idler Pulley & then
Attach the "Belt Loop" "AROUND" The Motor Mounted Pulley.
That should do it.
Put the rest of the Dryer Back Together...Done!
Good Luck,
Vinnie

The way to visually see if the belt has broken or not is to 1) unplug the dryer. 2) Remove the lint screen on the top of the dryer. 3) take the two phillips head screws out where the lint trap is. 4) with a flat head screwdriver pop the top of the dryer up by sliding the driver inbetween the top and front of the dryer and pry upwards a little. 5) You'll now see the drum, if the belt is not around it its broken, and if it's visible try to lift it. If it taught, its good. IF THE BELT IS BROKEN OR LOOSE CONTINUE TO NEXT STEPS 6) on the left and right upper inner sides of the dryer you will find two screws, one on each side, remove these and the front should be easlily remove. 7) once off you'll be able to easily see the motor, the belts idler pulley, and everything else.
Leave the drum in the machine. Now, directly in front of the motor on the floor of the dryer you will see two slots. This is where the idler pulley will go. You'll notice on the pulley at the bottom of the bracket a piece of metal sticks downward. This will sit in the slot closest to the dryer wall, and the end of the bracket will slide into the other. You'll want to slide the end in first. Now with the pulley in place take the belt and put it around the drum tread side down. To hook the belt around the motor pulley you'll have to pull the idler pulley towards closest dryer wall and place the belt around the motor pulley. Slowly release the idler pulley and thats it. Put it together and your done.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

The way to visually see if the belt has broken or not is to 1) unplug the dryer. 2) Remove the lint screen on the top of the dryer. 3) take the two phillips head screws out where the lint trap is. 4) with a flat head screwdriver pop the top of the dryer up by sliding the driver inbetween the top and front of the dryer and pry upwards a little. 5) You'll now see the drum, if the belt is not around it its broken, and if it's visible try to lift it. If it taught, its good. IF THE BELT IS BROKEN OR LOOSE CONTINUE TO NEXT STEPS 6) on the left and right upper inner sides of the dryer you will find two screws, one on each side, remove these and the front should be easlily remove. 7) once off you'll be able to easily see the motor, the belts idler pulley, and everything else.
Leave the drum in the machine. Now, directly in front of the motor on the floor of the dryer you will see two slots. This is where the idler pulley will go. You'll notice on the pulley at the bottom of the bracket a piece of metal sticks downward. This will sit in the slot closest to the dryer wall, and the end of the bracket will slide into the other. You'll want to slide the end in first. Now with the pulley in place take the belt and put it around the drum tread side down. To hook the belt around the motor pulley you'll have to pull the idler pulley towards closest dryer wall and place the belt around the motor pulley. Slowly release the idler pulley and thats it. Put it together and your done.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

hello berna.... that pulley is the idler pulley which keeps tension on the belt which turns the dryer drum. It apparently came unattached or in some cases unbolted. It will have to be put back in position. The dryer belt may also be broken or worn. consiter replacing both the belt and the idler pulley. Joe

Could be a lot of things causing it, blower wheel, motor, idler pulley, rollers. Dryers have several moving parts that could cause a clicking sound. The blower fan could be coming into contact with something. There is a motor, tensioner and a belt that turn the main drum, the tensioner for the belt could be loose thus causing the clicking noise as well.

remove 2 screws at filter. use a screw driver and pop hood from front. remove 2 screws at top front on inside and remove front of dryer. roller wheels are easy to repalce. place belt around drum. idler pully fits in slot just beloew moter pully. check its position while you have drum out, that way you know where it goes or you can actually put it in tis place bfore installing drum. helpful hint, after putting drum in place, reach your hand back to the right side roller wheel and pull it slightly forward. last put the belt on the idler pulley. go over the top of the pulley from right to left and then under and around motor pulley. it will only go on one way , the other will be obviously wrong. good luck.

It sounds as if the idler bearing has started to fail see this picture http://sites.google.com/site/sublimeappliancerepair/_/rsrc/1246721031553/washer-will-not-spin/agitator-woes/dryer-will-not-work/how-do-i-get-inside-my-dryer/gas-dryer-quits-heating/more-gas-dryer-enlightenment/gallery-of-dryer-parts-locations-and-diagrams/frigidaire-gibson-kelvanator-dryer-101/kenmore-whirlpool-englis-roper-dryer-notes/ge-dryer-repair/maytag-norge-amana-crosley-basic-repair-info/Norge%20dryer%20with%20drum%20removed.jpg

The idler pulley in the picture is behind the motor.

I would check the ilder pulley to see if it rotates freely and does not have any odd side to side movements. If it does then replace the idler pulley and belt.

Belt: http://www.appliancepartspros.com/part_details.aspx?part_id=4043963&rdr=%2fpartsearch%2fmodel.aspx%3fmodel_id%3d47809%26diagram_id%3d681078


NOTE: Before you remove the idler pulley and belt note carefully the installation position of the belt, idler arm, spring and the idler pulley. For a first timer trying to do this it can be quite frustrating to get them all positioned correctly.

Idler pulley:

http://www.appliancepartspros.com/part_details.aspx?part_id=4373393&rdr=%2fpartsearch%2fmodel.aspx%3fmodel_id%3d49146%26diagram_id%3d673577

I hope this has been useful information to you. Good day.

ALWAYS UNPLUG YOUR DRYER BEFORE ATTEMPTING TO DO ANY WORK ON IT.
Sounds like your problem may be a broken belt, or the belt has slipped off of the motor pulley, or idler arm pulley.
If you have to replace your drum belt or check the other pulleys and if you have a front loading machine.
Remove the electrical console that holds the timer switch, start switch, etc. from the top of the dryer. Be real careful not to knock any of the wires off of the timer switch. Then remove the top of the dryer.
Remove the front of the machine, this will expose the belt and drum, remove the drum and belt and this will expose the drum rollers, idler arm bracket with pulley, and motor with pulley. Pay attention to the route of the belt, this will come in handy when you go to reinstall the belt and drum.
Sometimes the belt will slip off of the idler arm or motor causing the drum not to turn.
While you have the drum out, I would recommend that you lubricate the drum rollers at the shaft of the roller with a good grade of machine oil like 3 in One oil. This will save you a problem later with the rollers getting noisy, also check your drum rollers for flat spots, if they have flat spots on them this will cause a noise like a thumping type noise. You will need to replace the drum rollers if they have flat spots on them.
I will include these two websites for parts and further help:
http://www.partselect.com/
http://www.appliancepartspros.com/index.aspx
Both also have chat assistance 24/7.
Good luck,
I hope this helps

If this is a Whirlpool manufactured dryer (which inlcudes Kenmore, Roper, Estate, Kitchenaid, and Frigidaire), just follow these steps:

a. Loop the drive belt around the dryer drum with the groove side facing the drum. (Try to line the belt up with the wear marks already on the drum from the previous belt).

b. With the tensioner in your left hand, insert the clip end of the idler pulley into the grooves on the dryer bottom casing with the idler wheel pointing to your left. (The grooves are directly in front of the drive motor.)

c. While holding the tensioner in place, insert the belt UNDER the wheel with your right hand and pull it up and over the drive motor pulley.

If this does not explain it well enough, you can also verify by going to repairclinic.com. Click on the Repair Help link and look for the "Dryer Belt Diagrams" link under the Special Features section on the next page. Look for Whirlpool and locate diagram H.

NOTE: It is normal for the idler pulley to come loose when there is no belt tension.

If your dryer is not manufactured by Whirlpool, or if you simply aren't sure, please post back with your model number so I can give you more accurate information. I hope you find this helpful.

this should help couldnt find an actual picture so i took the time to draw a simple on in paint for you