Deere Foreman
Member
Hey guys, I've been lurking on here a long time and very much appreciate all of the info and knowledge floating around. This is the first instance where I may need a little help from someone more knowledgeable than myself on undercarriages. Thanks in advance for any input.
Late last year I purchased a 2002 Komatsu d41p-6, which has turned out to be a very solid machine. Upon initial inspection I did notice that the sprocket on the left hand side on the machine looked very close to what I will call the track frame... (part of the sheet metal frame directly in front of the sprocket). I'd say within 1/2" of the sprocket. The other side was 1 inch or better away. I didn't put much thought into it at the time, but it was noticable.
Now, after 100 or so hours of use, the sprocket is actually rubbing that piece of metal that is directly in front of it pretty hard. To the point its taken a lot of life off of the sprocket. On a side note, we do run the correct tension on the tracks, by komatsu spec. It stays wet around here and the undercarriage stays fairly muddy so it went unnoticed for a short while it looks. Ive parked the machine for the moment until I can sort it out.
My first impression was somehow the drive motor was bent/twisted forward... possibly from someone previously running the tracks entirly too tight for a long pieriod of time.... somehow bending it forward.. is that even possible? But the more I look at it, I cannot seem to find anything "bent" or out of order, other than the sprocket rubbing. The sprocket does not wobble when in use.
I cannot get the one picture I have of it actually rubbing uploaded, but i have included a couple of my dozer
that I had on my phone that will give you an idea of what I mean. Will update when i can get a good picture of the damage tonight or tomorrow.
Thanks for any input at all.
Late last year I purchased a 2002 Komatsu d41p-6, which has turned out to be a very solid machine. Upon initial inspection I did notice that the sprocket on the left hand side on the machine looked very close to what I will call the track frame... (part of the sheet metal frame directly in front of the sprocket). I'd say within 1/2" of the sprocket. The other side was 1 inch or better away. I didn't put much thought into it at the time, but it was noticable.
Now, after 100 or so hours of use, the sprocket is actually rubbing that piece of metal that is directly in front of it pretty hard. To the point its taken a lot of life off of the sprocket. On a side note, we do run the correct tension on the tracks, by komatsu spec. It stays wet around here and the undercarriage stays fairly muddy so it went unnoticed for a short while it looks. Ive parked the machine for the moment until I can sort it out.
My first impression was somehow the drive motor was bent/twisted forward... possibly from someone previously running the tracks entirly too tight for a long pieriod of time.... somehow bending it forward.. is that even possible? But the more I look at it, I cannot seem to find anything "bent" or out of order, other than the sprocket rubbing. The sprocket does not wobble when in use.
I cannot get the one picture I have of it actually rubbing uploaded, but i have included a couple of my dozer
that I had on my phone that will give you an idea of what I mean. Will update when i can get a good picture of the damage tonight or tomorrow. Thanks for any input at all.
