Restring a Weedeater Max TE475Y

Google it,,,,you will find it.

Here's an answer that's actually HELPFUL, unlike that randlrepair fellow that can't be bothered. I can't directly link to the PDF, but if you click HERE and then click on "DOWNLOAD THIS MANUAL" you'll be good to go!

The following is a copy/paste of the restringing instructions from the manual I linked to:

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.
   
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.
   

1. Install replacement spool.
   
2. Thread line through line guide ring.
   
3. Rest guide ring on spool and place line through slot. Allow line to extend 4 -- 6 inches (10 -- 15 cm) from center of spool.
   
4. Ensure line remains in slot while screwing cap on to the shaft.Only tighten cap hand tight!