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I've been using my 54" front-mount snow blower about every other snow and noticed the chain was getting a tad loose. After tightening the chain and giving the blower a general once-over, I decide to check the bolts that hold the chute-retaining clips (highlighted part below, 37M7058).

Chute.jpg

The first bolt I checked, I literally only "touched" the head with the wrench and it popped right off! It must have been sitting there being held only by a single molecule. I then checked the rest and found another one with the flange broken off.

Somewhere... way back when... I remember reading a forum posting somewhere about this being an all-to-common occurrence because it caused me to order a few spares at the time. So after drilling out the old bolt I dug into my spares. At first I panicked because the spares looked much larger. Thinking I had ordered the wrong part I checked the part number and sure enough it was the correct number. The bolts are M8x20 but the original bolts have a 10mm head whereas the spares I ordered from JD had a 13mm head. Other than that the bolts appeared to be identical.

Looking at the two broken bolts they appear to be a very low grade of bolt. The broken flange edge almost looks cast.

So today I went to the hardware store and picked up some M8x20 Class 10.9 bolts and I am going to replace all six bolts on the chute retaining clips.

Below are some photos which shows the bolt that originally came with the blower (with broken flange), the replacement 37M7058 and the class 10.9 from the hardware store.

I hope this takes care of any future problems. I have no idea why JD changed the size of the bolt head on the replacements nor do I understand why the chute clip bolts are so prone to breaking. I just hope I can get the other four out without any issues.

E26R3991.jpg

E26R3994.jpg

For the other 54" blower owners out there, you might want to check your chute clip bolts.
 

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I've been using my 54" front-mount snow blower about every other snow and noticed the chain was getting a tad loose. After tightening the chain and giving the blower a general once-over, I decide to check the bolts that hold the chute-retaining clips (highlighted part below, 37M7058).

View attachment 40752

The first bolt I checked, I literally only "touched" the head with the wrench and it popped right off! It must have been sitting there being held only by a single molecule. I then checked the rest and found another one with the flange broken off.

Somewhere... way back when... I remember reading a forum posting somewhere about this being an all-to-common occurrence because it caused me to order a few spares at the time. So after drilling out the old bolt I dug into my spares. At first I panicked because the spares looked much larger. Thinking I had ordered the wrong part I checked the part number and sure enough it was the correct number. The bolts are M8x20 but the original bolts have a 10mm head whereas the spares I ordered from JD had a 13mm head. Other than that the bolts appeared to be identical.

Looking at the two broken bolts they appear to be a very low grade of bolt. The broken flange edge almost looks cast.

So today I went to the hardware store and picked up some M8x20 Class 10.9 bolts and I am going to replace all six bolts on the chute retaining clips.

Below are some photos which shows the bolt that originally came with the blower (with broken flange), the replacement 37M7058 and the class 10.9 from the hardware store.

I hope this takes care of any future problems. I have no idea why JD changed the size of the bolt head on the replacements nor do I understand why the chute clip bolts are so prone to breaking. I just hope I can get the other four out without any issues.

View attachment 40755

View attachment 40756

For the other 54" blower owners out there, you might want to check your chute clip bolts.


They could have changed it because 13 is a more common size for the common household tool set, but doesnt 13 equal 1/2 inch in american?
 

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Discussion Starter #3
They could have changed it because 13 is a more common size for the common household tool set, but doesnt 13 equal 1/2 inch in american?
Perhaps. But based on my experience with the 54" blower and other JD equipment, ease of disassembly and the ability to use common household tools are not items that were part of the original design process.
 
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Yep, add me to the club. When my 47" blower was brand new, way back in 2007, I was giving it a once over after delivery. I had a similar experience whereby one broke simply by touch. In all, 4 ended up broken. I called the dealer and got them replaced and they gave me a few extra…which I still have. No problems since


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I've been using my 54" front-mount snow blower about every other snow and noticed the chain was getting a tad loose. After tightening the chain and giving the blower a general once-over, I decide to check the bolts that hold the chute-retaining clips (highlighted part below, 37M7058).

View attachment 40752

The first bolt I checked, I literally only "touched" the head with the wrench and it popped right off! It must have been sitting there being held only by a single molecule. I then checked the rest and found another one with the flange broken off.

Somewhere... way back when... I remember reading a forum posting somewhere about this being an all-to-common occurrence because it caused me to order a few spares at the time. So after drilling out the old bolt I dug into my spares. At first I panicked because the spares looked much larger. Thinking I had ordered the wrong part I checked the part number and sure enough it was the correct number. The bolts are M8x20 but the original bolts have a 10mm head whereas the spares I ordered from JD had a 13mm head. Other than that the bolts appeared to be identical.

Looking at the two broken bolts they appear to be a very low grade of bolt. The broken flange edge almost looks cast.

So today I went to the hardware store and picked up some M8x20 Class 10.9 bolts and I am going to replace all six bolts on the chute retaining clips.

Below are some photos which shows the bolt that originally came with the blower (with broken flange), the replacement 37M7058 and the class 10.9 from the hardware store.

I hope this takes care of any future problems. I have no idea why JD changed the size of the bolt head on the replacements nor do I understand why the chute clip bolts are so prone to breaking. I just hope I can get the other four out without any issues.

View attachment 40755

View attachment 40756

For the other 54" blower owners out there, you might want to check your chute clip bolts.
you know; after watching my chute jump all over the place I believe the heads will break off, I have to ask why they have all that play between the chute clips and the blower itself. It just leads to issues.. Now I am going to check all mine too. They do get hammered. just watch and you will see.
 

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I believe that these bolts are machine driven into plain drilled, untapped holes. The small hex head size coupled with the torque required to cut the threads into the chute mount bracket causes fracturing at the bolt shoulder. That's my $ 0.02 story and I'm sticking to it...............

:dunno:
 
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I believe that these bolts are machine driven into plain drilled, untapped holes. The small hex head size coupled with the torque required to cut the threads into the chute mount bracket causes fracturing at the bolt shoulder. That's my $ 0.02 story and I'm sticking to it...............

:dunno:
Totally agree Frank. When I took one off to install the clip it was hard as hell to get it to totally extract and that's the first thing I said. I have broken bolts doing this because the hole was just a wee bit to small. Lesson learned for sure. Torque wrenches always. Nothing like either drilling out a hard bolt or moving the entire piece.. What's worse? snapping off a tap!
 
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