Huskyboy meets the 572xp

[huskyboy]

On the Asian 440 + 660 kits, one bearing is usually metal cage and one Nylon (I think).

I'm always careful not to over heat (with my HF heat gun) the ones with the nylon cage, as you can hurt them. (they will start to blister)

I think nylon or polymer is a better term for it rather than calling it plastic like I did. I’m sure the manufacturers have a term for it. It’s definitely not as strong/heat resistant as metal... but it’s definitely not your normal mcdonalds milkshake cup plastic. Lol

 

[chipper1]

Makes sense, ours aren’t rotting yet just dying rapidly. They sure make a mess when dropping the big ol dead ones. They just shatter and *s-word goes flying

Yep, we like to dump edge line trees against the lean into the woods to leave all the "shrapnel" there. On the farms it's nice having equipment to give them a little nudge in the right direction and having a smaller bucket to stand on and cut above the fence line so you don't trash your chains.
Here's a video from a few yrs ago I loaded to my account last yr, it's a friend working on a job, funny hearing the kids voices.

 

[chipper1]

I think nylon or polymer is a better term for it rather than calling it plastic

You saying I need to change my signature to "Lots of stuff made of metal and nylon or polymer".

Yup if you overheat the bearings in these newer saws they melt the cages (plastic caged bearings) and the bearing fails. Just about every new saw (stihl, husqvarna ect.) from every manufacturer except maybe a few models has them now. Which I was disappointed to learn. However I realized that the manufacturers know what they are doing and doing it for a reason. The plastic cages aren’t as tough as metal... but when the disintegrate they don’t wipe out the cylinder/crank like metal cages do. The saw can then still be rebuilt rather than a total loss. Keep a sharp chain and don’t overheat the saw... they should give good life in theory.

I always felt the same way about the plastic intakes/clamps, dull chains are what killed those saws, the effect of the dull chain was seen in the plastic intake clamp. The thing is, once it's on the internet that something is bad, you have a hard time convincing people otherwise; hydroxychoriquin is a perfect example, and the other way around is masks.

 

[Spike60]

I think nylon or polymer is a better term for it rather than calling it plastic like I did. I’m sure the manufacturers have a term for it.. Lol

They do indeed: "Engineered Material"

 

[MustangMike]

How have you been Bob?

My Tax Season has started, but I think a lot of folks are waiting till the weather improves.

My apt later tonight was re scheduled from last night.

 

[John7478]

They do indeed: "Engineered Material"

Have you seen many bearing failures on the 572?

 

[Spike60]

Have you seen many bearing failures on the 572?

Just one so far of all the saws I've sold. PTO side; had 300+ hours on it. Top end survived with no damage. Put a short block under it and off she went. These short blocks are great. The tools alone cost me as much as 2 short blocks. Then there's all that labor savings. Not just for the customer, but ya gotta keep the jobs moving through the shop. I just wish there was a 372 short block.

Nothing in my world to shatter confidence in the saws. It's the typical online multiplier effect that makes things seem worse than it is. A failure or 2 become news, but the 130+ saws that run fine are never part of the conversation.

 

[Spike60]

How have you been Bob?

My Tax Season has started, but I think a lot of folks are waiting till the weather improves.

My apt later tonight was re scheduled from last night.

Been good mike, how about you?

Your favorite time of the year is here, huh? Those huge spikes in activity when something seasonal kicks in are great stress generators for sure.

 

[MustangMike]

Virtually no snow in Jan, then as soon as my Tax Season starts (2/1), we get clobbered, then a little more when it stops, then again this morning ... you can't make it up!

Other than that, everything has been good. Even got to take the Grandkids sleigh riding before Tax Season began, and my 60+ year old Flexible Flyer embarrassed all of the other sleds! They built them well back then!

It is the one standing next to my Daughter.

 

[Spike60]

Still got my Flexible Flyer Mike. Which was my Dad's; from the 1930's. Still the best sled on the hill!

 

[John7478]

Virtually no snow in Jan

Because we are running our non EPA approved saws lol

 

[Motorka]

Just one so far of all the saws I've sold. PTO side; had 300+ hours on it. Top end survived with no damage. Put a short block under it and off she went. These short blocks are great. The tools alone cost me as much as 2 short blocks. Then there's all that labor savings. Not just for the customer, but ya gotta keep the jobs moving through the shop. I just wish there was a 372 short block.

Nothing in my world to shatter confidence in the saws. It's the typical online multiplier effect that makes things seem worse than it is. A failure or 2 become news, but the 130+ saws that run fine are never part of the conversation.

What do you recommend 1: 40 or 1:32 and xp oil ?

 

[Spike60]

What do you recommend 1: 40 or 1:32 and xp oil ?

Wouldn't go any richer than 40. 32 is just too much oil IMO. Of course, out in the real world, most guys are running 50 cause that's how it's packaged. Very few are taking the time to mix up their own brew.

 

[huskyboy]

Wouldn't go any richer than 40. 32 is just too much oil IMO. Of course, out in the real world, most guys are running 50 cause that's how it's packaged. Very few are taking the time to mix up their own brew.

If I had to run 50:1 a autotune or mtronic saw is definitely the way to go. Of course I usually mix up our gas to 40:1. Lol

 

[5000+]

Wouldn't go any richer than 40. 32 is just too much oil IMO. Of course, out in the real world, most guys are running 50 cause that's how it's packaged. Very few are taking the time to mix up their own brew.

How did the chain look? Do You think that was a factor?

 

[John7478]

How did the chain look? Do You think that was a factor?

I would say that's what killed it. I have seen many 461s lately with failed PTO bearings caused by dull/tight chains, and that combined with long bars don't help either. The 6203 bearings on the 572 is definitely a step forward IMHO even if it does carry a weight penelty.

 

[Spike60]

You guys are on the right track. He always runs his chains too tight. Doesn't run them dull or filed too aggressively, but too tight for sure.

 

[Joe P]

I'm curious on how tight is to tight on chain tension. I have a new 572, so far I'm loving it. I put enough tension on my chains that I can pull them down, but the drive links can't come out of the bar fully, maybe 1/2 way... To much, not enough?

 

[MustangMike]

Sounds good to me, but I like my chains a little tight.

Used to make them too tight, had to break myself of that habit.

If you can pull the chain around the bar w/o much resistance, you are likely good, if it feels tight (moving it), loosen it up a bit.

 

[MustangMike]

I get paranoid about loosing chains when cutting brush ... letting them get too loose is just as bad as making them too tight.

Check them regularly.

Sometimes when bucking larger pieces the sliding piece also wants to pinch and dislodge your chain. Using plastic wedges can help to reduce this.