Question about trimmer line welding

[2515R Dude]

No mater what brand i use, cheap or expensive, after half of the spool on the trimmer it start welding and does it every 2-3 minutes.
Any idea why it happens and what is the remedy?

 

[Richard001]

No mater what brand i use, cheap or expensive, after half of the spool on the trimmer it start welding and does it every 2-3 minutes.
Any idea why it happens and what is the remedy?

Hum - not sure by what you mean by "welding". Are you saying that the trimmer plastic line melts on the spool ?

Richard

 

[oldnslo]

Is “welding” where the string will not auto extend? I think this is from the wraps winding together on the spool from the constant tugs when cutting. If yes then maybe, repeat maybe careful winding of the string when reloading the spool or string head would help

 

[ning]

We always had trouble with wind-up spools and ended up with this one for idk the last 15 years:

You cut three pieces of line about 8" long, stick one end in from the outside and use it until it's gone. Then with pliers grab the line from the inside and yank the rest of it (if there's any left) through and then stick another three in.

They also make 2-line version going down to 0.080; the one we use works with 0.155 and likely smaller as well.

In some ways it's not as convenient as an auto feeder, but you don't have to rely on that autofeeding which probably makes it more reliable.

 

[bcp]

Some things to try:

Soak the loaded trimmer head in water before using.

STIHL Trimmer Heads and Line

What is the best cutting attachment for my application? How do I rewind my cutting attachment and what is the proper way to trim with a STIHL machine?

www.stihlproline.ca

Try one of the recommended size strings that is a shape other than round.

If you are using the recommended size string for your trimmer, try going up one size.

Bruce

 

[5030]

I use the Stihl Tri cut head myself, no trimmer line required. The Tri cut head uses 3 swinging and easily replaceable hard nylon 'blades'. Much less overall expensive and no pesky line to deal with.

The Stihl head fits my Echo just fine btw.

 

[2515R Dude]

Hum - not sure by what you mean by "welding". Are you saying that the trimmer plastic line melts on the spool ?

Richard

Before wasting your time guys i searched the internet and i understood the term welding applies to the condition when the string is melting and welds with the rest of it inside the trimmer's head. It is why i used this term, but yes, you cam call it melting

Some things to try:
Soak the loaded trimmer head in water before using.

STIHL Trimmer Heads and Line

What is the best cutting attachment for my application? How do I rewind my cutting attachment and what is the proper way to trim with a STIHL machine?

www.stihlproline.ca

Already dropped it in to the bucket with water, thanks for the advice.

Try one of the recommended size strings that is a shape other than round.

It is the recommended size per manual.

If you are using the recommended size string for your trimmer, try going up one size.

Ok, if the water bath does not work, i will try it

 

[LittleBittyBigJohn]

The only time I've really had any issue with melting line was when I have done a lot of edging. Are you edging or trimming up against something solid? Also do you see that the line is actually melting or is it just not pulling from the head well? Is the head or the mounting point for the head getting hotter than you can touch?

 

[2515R Dude]

The only time I've really had any issue with melting line was when I have done a lot of edging. Are you edging or trimming up against something solid? Also do you see that the line is actually melting or is it just not pulling from the head well? Is the head or the mounting point for the head getting hotter than you can touch?

Nope, just some grass. Provably the hardest was young, about 18" Johnson's grass. It was welding every time. In 10 minutes i had to rewind 3 times, then i gave up and went for the internet then for TBN. It was doing it before, but not to this extend. I tried multiple brands, same results, no love...

Currently i use Oregon Magnum Gatorline 095

​

 

[mrmikey]

I was watching Chicanic a few months back and she was saying that Echo was having problems with their speed feed 500 trimmer head:

 

[2515R Dude]

I have hasqvarna head.

 

[2515R Dude]

Ok, after overnight soaking the string in water, today i ran two spools worth of cutting .
The welding-melting happened only twice and it wasn't the string/head/trimmer fault. Ones i attacked a very heavy overgrowth too fast and another time there were thick twigs in the grass i did not see.
Looks like the trick works
Thank you guys, i knew i could find the right solution from you.

 

[ning]

Curious situation; it sounds like it's related to ultrasonic vibrations moving up the trimmer line into the spool and presumably the vibrating lines against each other causing heat.

 

[2515R Dude]

Curious situation; it sounds like it's related to ultrasonic vibrations moving up the trimmer line into the spool and presumably the vibrating lines against each other causing heat.

Yes, i red about it, but the question is, why the dried strings are more sensitive to it.

 

[ning]

Yes, i red about it, but the question is, why the dried strings are more sensitive to it.

My guess is the dry ones are rougher and more susceptible to friction-induced heat.
Also, apparently the string does soak up some water, so perhaps that extra bit of water in them keeps them from heating too much... for a while.

 

[2515R Dude]

Today i tried a cheap no name no brand string which i could not use at all. I left it overnight in the water and today i ran a full spool cutting and trimming without a single issue. Who would imagine such an easy solution.

 

[DK_Farms]

I know the thread is old but I wanted to mention that my buddy is in the lawn care business and buys trimmer string on bulk rolls. He carries the string in his trailer soaking in a covered 5 gallon bucket of water. He says he never has issues with string anymore. Just sayin...

 

[1M05]

Skip to 0:17 if you are in a hurry. You're welcome.

 

[ArlyA]

We run 155 string and tested dry vers soaked. We can do this in the same head since they hold 3 strings. Didn't see any longevity difference.

 

[DieselBound]

Had this issue too frequently. When I switched to Husqvarna Titanium line this problem is all but gone. I am using a Stihl trimmer head (at one point I was threatening to replace it). When you load up the head you need to make sure you don't twist the line; a clean wind helps also.

What will exasperate this tendency is to be hitting really tough stuff a lot as this results in the line being tugged and that tightens the line inside the head and causes binding (line will be pulled down in between two adjacent wraps. The proper approach to dealing with heavy stuff is to drop down on it rather than cut into it.