I changed all the lower rollers yesterday and now I am wanting to do the rear sprockets. So far I have all the slack I can get in the chains/rails. Worked the slack to the back. Have the chain supported on the top side with chain just off the teeth of sprocket. I have the machine blocked up. I can get the chain off the sprocket from the 8 to 12 o clock position of the sprocket.
My question is, is this possible to change a sprocket this way without splitting the track/chain ?? I do not have a masterlink in chain so I would have to find the pin to beat it out to split chain. This is what I did not want to do.
Suggestions or any help would be greatly appreciated !!!! Thanks everyone in advance
Changing rear sprocket on 450G
- Al Swearengen
- 440 crawler
- Posts: 128
- Joined: Sat Aug 28, 2010 8:01 am
- Location: Sierra Nevadas...Gold Country!
-
- 2010 crawler
- Posts: 597
- Joined: Thu Aug 27, 2009 10:08 pm
- Location: Edmonton, Alberta
Jaw type rails
You probably have jaw type rails which are much easier to separate and reattach. Look for a solid link.
Never tried to replace sprockets without splitting the rail. Probably can be done, but never felt the need to try.
Never tried to replace sprockets without splitting the rail. Probably can be done, but never felt the need to try.
Jason Benesch
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
Success !
I changed the rear sprockets without splitting the chain apart. I know it would have been easier but never did find a split link etc. I did not want to beat a pin out. I looked it over and figured I could get sprocket out with some creative rigging.
First I released all the tension in both tracks. Raised the rear of dozer about 5 inches and set on blocks. Removed one track pad facing directly rear (3 0çlock position) and one track pad at the 12 oçlock position. I did this to aid in attaching come a long and ratchet straps.
Attached 3 more ratchet straps to the chain from the top roller rearward to the sprocket to keep all the slack rearward. Attached a come a long to the 3 o clock position to pull straight rearward.
After doing this the chain was off the sprocket from the 12 to 3-4 o clock position.
Removed the guard that is directly in front of sprocket that is attached to roller frame. This left a small "slot" to maneuver procket in.
Unbolted sprocket, used portable engine hoist with small strap ran through center of sprocket. Used engine hoist as a crane to pick up at a angle and pulled sprocket out.
The first one took a little time to figure just what was needed. I had my wife helping me on that one. The second I did by myself. Couple of hrs. Not as bad as I was expecting. I am a crane operator by trade some my rigging skills came into play LOL.
I would have posted this sooner but my mail had went to my spam box.
Hope this helped someone else who was wondering if it can be done.
Thanks .
I changed the rear sprockets without splitting the chain apart. I know it would have been easier but never did find a split link etc. I did not want to beat a pin out. I looked it over and figured I could get sprocket out with some creative rigging.
First I released all the tension in both tracks. Raised the rear of dozer about 5 inches and set on blocks. Removed one track pad facing directly rear (3 0çlock position) and one track pad at the 12 oçlock position. I did this to aid in attaching come a long and ratchet straps.
Attached 3 more ratchet straps to the chain from the top roller rearward to the sprocket to keep all the slack rearward. Attached a come a long to the 3 o clock position to pull straight rearward.
After doing this the chain was off the sprocket from the 12 to 3-4 o clock position.
Removed the guard that is directly in front of sprocket that is attached to roller frame. This left a small "slot" to maneuver procket in.
Unbolted sprocket, used portable engine hoist with small strap ran through center of sprocket. Used engine hoist as a crane to pick up at a angle and pulled sprocket out.
The first one took a little time to figure just what was needed. I had my wife helping me on that one. The second I did by myself. Couple of hrs. Not as bad as I was expecting. I am a crane operator by trade some my rigging skills came into play LOL.
I would have posted this sooner but my mail had went to my spam box.
Hope this helped someone else who was wondering if it can be done.
Thanks .
Who is online
Users browsing this forum: No registered users and 89 guests