Can't get spool out of

If this is a weed eater the spool will probably have to be pried out, see if You can get a flat head screwdriver in the lip of it an gently pry up on it!

when you are holding the spool on which you wind the string wind the string on in a anticlockwise direction
if it uses 2 strings ( one out of each side of the spool
wind in both strings together in the anticlockwise direction
that way , when you put the spool in the head and go to use it , the string is wound the right way to feed out and not get tangled

There are a couple of different heads that doesn't have a spool on 1 you pull the left over pieces of old string out from under the and the push the new short pieces into the front of the head, another you line up two arrows and then put a long piece of string throw the head eqail on both sides and then wind the head to pull the string in, another you take off and feed the line down inside.

you buy spool of line and thread your self, you maybe able to buy the spool already has string on the spool, most are basic, the spool should have the direction you need to string it.unplug the trimmer, turn up side down, it have nut on it, unscrew it counter clock wise, than pull spool off restring the line for the weed eater, the string must be wound counter clock wise from the direction the weed eater or trimmer spins.

www.ask.com/mfg.name/make/model/change/head/trimmer/

Here is the info from the manual, the replacement line is put in near the center of the spool on the top of it, you simply feed it in. I have included a link to the manual so you can see the pictures. Look at page 10 for these instructions.
http://www.weedeater.com/ddoc/WEEO/WEEO2009_USen/WEEO2009_USen_TE475-952711797_545186833.pdf
LINE REPLACEMENT Pre--wound spools offer the most convenient method for replacing line and ensuring optimum performance. S Replacement spools are color--coded to ensure use of the correct spool with your unit. Be sure to use the same color spool as the existing spool. NOTE: Always clear dirt and debris from cutting head components when performing any type of maintenance. S Hold spool and unscrew cap by turning in the direction shown on top of the cap. S Remove line guide ring and spool. NOTE:When removing and/or installing spool, ensure dust cup remains installed over shaft. Use a pre--wound spool or refill spool with line. If using a pre--wound spool, remove tape strip from line and spool. REFILLING THE SPOOL WITH LINE WARNING: Use only 0.080" (2 mm) diameter round line. Other sizes and shapes of line will not advance properly and will result in improper cutting head function or can cause serious injury. Do not use other materials such as wire, string, rope, etc. Wire can break off during cutting and become a dangerous missile that can cause serious injury. 1. Cut a length of 25 feet of 0.080" (2 mm) diameter round WEED EATER brand line. Feed line in direction shown on spool. Spool 2. Insert one end of line into center cavity of empty spool. Ensure line will feed into spool in the direction shown on the spool (counterclockwise). 3. Continue feeding line into spool, leaving 4 -- 6 inches (10 -- 15 cm) unwound from center of spool

You can find the Poulan and Weed Eater instructions and manuals at InstructionSheets.com.

Here is a link to the page where you can download the Weed Eater RTE 115 Trimmer Manual.

If you have the starter spool out (the one the rope goes in)...Here is what to do. Take the starter spool and change the rope out putting it back exactly as it was. Leave the rope hanging. Hold the spool and set it down on the rewind spring. Turn the spool on the rewind spring until you feel it is tight enough. While turning, hold the rope in the little slot in the spool so it can go around without hanging up. Once it is tight, get the rope in line with the spool opening and SLOWLY let the rope rewind. Put on the handle and put the unit back together.Good luck...Lee

Cut two separate pieces of string, about 7 ft. each.

Stick the end of the line in the hole on the inside of spool.

Wind clockwise onto spool, putting the line that is closest to the ground on first.

Once you have winded this piece on, lock the last 4 inches of line through the slits on spool.

Repeat process for second piece of line, locking the last 4 inches in slot opposite the other locked in piece.

Put the spool on the trimmer, feeding the end of lines through either hole on trimmer.

Before you push the spool all the way on, pull the strings out of the locked position.

Jim

For manual go to;
http://www.poulanpro.com/poulanpro/manualSearchPrepare.do;jsessionid=332BA6FC1EA2792C79A0A463204716AA

Preparation Instructions


1. Press the lock and rotate the spool counter-clockwise.
2. Remove the locking ring if your weed eater has one.
3. Take off the automatic feed button.
4. Wipe away any debris.
5. Push down on the spool to release the locking tabs.
6. Remove the spool from the chamber. Restringing the Weed Eater
7. Feed the line into the lower deck, traveling the line in an upside down J fashion (almost like sewing on a button but do not tie off the line). This secures the internal end of the line.
8. Wrap the line following the directed arrows. Do this until it wraps to the depth of the chamber.
9. Secure each of the lines into its own upper and lower deck grove settings.
10. Install the spool back into its chamber.
11. Pass the lines into the left and right holes and snap the spool into place.
12. Once the spool is in its sleeve and fed into its left and right eye holes, pull both ends simultaneously.
13. Reinstall the locking ring if necessary.

Do it yourself repair: common repairs for a weed eater Amazingly, weed eaters are one of the simplest yard tools to take care of. One of the first things you should do to keep your weed eater in good condition is to clean it. It is important not to clean your weed eater with water or gas, which may destroy the engine. The best, and easiest way to clean it is by blowing off dirt and grass with an air compressor or a leaf-blower after every use. The next most important thing to maintain on your weed eater is string. When the string gets low you can remove the lower part of the head (the part that the string comes out of) by pushing in slightly and turning the head counterclockwise. Cut the new string no shorter than 6 inches or the weed eater will not advance the string properly when in use. Thread the string back though the guides, making sure to follow the arrows on the guide. If the string is not put through the guides the right way, the head may pop off during use. Next, replace the bottom of the head by pushing and turning clockwise. You can totally skip this step by buying a string replacement cartridge. Though it is much more expensive, it saves you the trouble of having to restring your weed eater yourself. window.google_render_ad(); If you find that the head of your weed eater is worn on bottom or hard to get off to replace the string then it is time to replace it. This can be done very simply by unscrewing the two screws at the top of the head and slipping it off. Then, just slide the new one on and tighten the screws. After a few months of use, you may find that your weed eater is losing power or that it is making a strange lower pitched noise. This may be caused by a dirty filter. To check, unscrew the knob or wing nut on the carburetor. Inside you will find a small square screen, this is the filter. If the filter is gray or black then it is time for it to be cleaned. The easiest way to clean it is to blow it out with an air compressor. It can also be washed with plain water, but you must let it dry before placing it back into the carburetor. Once the filter is white or only light grey it is ready to use again. Always make sure to mix the gas and two-cycle oil in the proportions that are listed in the weed eater’s manual. Never use anything but two-cycle oil, normal car oil will not work and will damage your engine.

The spool retainer nut loosens when you turn it clockwise . The opposite of " normal ".