Cat sixty

The captured length of the front idler recoil spring is set at 17 1/4" - once set, you do not change that length. The nut that adjusts that length is at the rear on the spring.

Loosen the clamps bolts (also at the rear of the spring) and turn the "front idler adjusting bolt" to tighten the track. The book says that you should be just able to lift the track off the track 2" off the carrier rollers. Both the inner and outer bolts should be kept equal to have the tracks run straight.
The "Tandem Recoil Spring Group" - used on the Logging Cruiser tractors uses different parts and measurements, but the adjustment is the same. 
Hope the attached pictures are a help.



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Thank you, I see all that from the manual but my question is should there be any space between the back of the adjusting bolt and the carrier? I'm guessing the "captured length" is the fully compressed spring but how would one know that unless it is completely compressed? My spring measure about 20" and are almost compressed, I don't think they've been changed. I wanted to take the sag out of my tracks and just wondered if there should be a little tension on them (space between the back of the bolt and face of the bearing carrier).