i have a e70 that one of the tracks will quit pulling when it is going up a hill i can stop and move the other joy stick just a little and then the first track will pull again for just short distance i can keep move the other track and finally get it up a hill but i would rather find the problem and fix it i have notice that when i pull any other lever that the others will stop till i release that lever and pull t again i would like to know where the pressure relive valve is and how to adjust it i belive it is just low pressure checked it at both pumps and it is 3200 pds
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