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Case 1835B Diesel issues vs Newbie
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<blockquote data-quote="LeoB" data-source="post: 130470" data-attributes="member: 21523"><p>As to not wanting to turn, I'll offer another two cents worth...</p><p>1. I assume there this a hydro-static motor that drives the left side and there is one for the right side.</p><p>2. I assume that you have a left hand and right hand control levers. Or you have mechanical controls of some sort going to a value body that supplies hydraulic pressure to move the left or right side.</p><p>3. I assume that your drive system uses a hydro-static motor with two lines going to them. Depending on what you want that motor to do, control values route pressure to one side of the motor or the other to cause it to drive one way or the other. (My Hydra-Mac has belt driven pumps/motor units on each side with control lever. Pushing or pulling the lever determines if that side moves forward or backward.)</p><p></p><p>Assuming that....</p><p></p><p>A. I'd jack the machine up and block it. So the tires or tracks are off the ground completely and there is no chance the machine can fall off the blocks.</p><p>B. Using the steps below, I'm trying to see how your drive train behaves with "no load" on it. These steps may help you determine which side "is complaining" via noise or perhaps with visual indications. With someone controlling the machine and someone watching the tires/tracks, do the following:</p><p></p><p>C. Use your controls to simulate moving straight forward and/or straight backwards. Start our slow and then increase speed. Are the wheels/tracks moving at the same speed?</p><p> - I'm going to assume your answer is yes.</p><p> - Did you hear/see anything unusual from either side of your machine?</p><p></p><p>D. Now simulate a gradual turn to the left or right while moving forward. When turning left, the RIGHT side has to move faster. Same for turning right, the LEFT side has to move faster. Is that happening? </p><p> - Again, do you see or hear anything unusual for either drive side of your machine?</p><p></p><p>E. Now simulate a hard turn to the left or right while moving forward. This would be a turn like you'd want to make if turning a 90 degree turn in tight spaces. During a "tight" turn, does one side go forward and the other side drive backwards or at the very least drive forward very slowly?</p><p> - Again, do you see or hear anything usual?</p><p></p><p>F. Repeat steps C, D and E only going in reverse.</p><p></p><p>My two cents worth,</p><p></p><p>Leo</p></blockquote><p></p>
[QUOTE="LeoB, post: 130470, member: 21523"] As to not wanting to turn, I'll offer another two cents worth... 1. I assume there this a hydro-static motor that drives the left side and there is one for the right side. 2. I assume that you have a left hand and right hand control levers. Or you have mechanical controls of some sort going to a value body that supplies hydraulic pressure to move the left or right side. 3. I assume that your drive system uses a hydro-static motor with two lines going to them. Depending on what you want that motor to do, control values route pressure to one side of the motor or the other to cause it to drive one way or the other. (My Hydra-Mac has belt driven pumps/motor units on each side with control lever. Pushing or pulling the lever determines if that side moves forward or backward.) Assuming that.... A. I'd jack the machine up and block it. So the tires or tracks are off the ground completely and there is no chance the machine can fall off the blocks. B. Using the steps below, I'm trying to see how your drive train behaves with "no load" on it. These steps may help you determine which side "is complaining" via noise or perhaps with visual indications. With someone controlling the machine and someone watching the tires/tracks, do the following: C. Use your controls to simulate moving straight forward and/or straight backwards. Start our slow and then increase speed. Are the wheels/tracks moving at the same speed? - I'm going to assume your answer is yes. - Did you hear/see anything unusual from either side of your machine? D. Now simulate a gradual turn to the left or right while moving forward. When turning left, the RIGHT side has to move faster. Same for turning right, the LEFT side has to move faster. Is that happening? - Again, do you see or hear anything unusual for either drive side of your machine? E. Now simulate a hard turn to the left or right while moving forward. This would be a turn like you'd want to make if turning a 90 degree turn in tight spaces. During a "tight" turn, does one side go forward and the other side drive backwards or at the very least drive forward very slowly? - Again, do you see or hear anything usual? F. Repeat steps C, D and E only going in reverse. My two cents worth, Leo [/QUOTE]
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