How to change tracks on bobcat excavator 435?
Not sure on this model but track are tensioned using grease that is injected in a cylinder that's pushing on the front idler. Remove the grease zerk and you will need to compress the cylinder to loosen the tracks. There's a couple ways this could be done. One push them in with another piece of equipment or use the boom and push them in. The other way is use a 2 X 4 or 4 X 4 and insert it between the tracks and front idler wheel and run the tracks very slow this will compress the cylinder. Now you will need to find the main link it they are steel track or just pull the track off after you have rotated the boom around to that side and pushed down on the ground with it to raise the track off the ground. After installing the new track replace the grease zerk and fill with grease till you get the correct tent ion on the track.
Down the side of the track frame there will be a small access panel! There should be a grease nipple inside! Unscrew the nipple and take it off! Then push the idler wheel inwards with the bucket of the machine! The idler is the one without teeth! This should close the wheel enough to put the track back on! Once the track is back on lift that side of the machine with the bucket and replace the grease nipple then just pump up the track with a grease gun!
