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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
are the servo's adjustable on a 853
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<blockquote data-quote="skidsteer.ca" data-source="post: 5597" data-attributes="member: 307"><p>I have never seen anything in the manual about adjusting the lag, or lack of feed back from the steering. That is what your refering to? as the foot pedals on my loader are as nice to use as any other bobcat I have run.</p><p>Perry has hand controls in his, however I don't believe they are anyhting like the new electric over hydraulic joystick controls in the new loader. I believe they are just a morse cable that mechanically links the pivoting top of the steering lever to the loader control valve.</p><p>The steering levers on my 853 are linked to the hydrostatic pumps with morse cables as well. There is no electrics involved here either. I'm not sure where the term "servo" comes from for these machines as I see nothing in the manual about a system any different then mine. Also the 853 was only made for a few years, and I don't know if the 863 also used the same hydrostat.</p><p>The 700 series machines have some feedback into the steering sticks. The 853 does not.</p><p>If a 700 machine is traveling 1 mph and push the sticks full forward to say 6 mph, the effort to push and hold the sticks at 6 mph is heavier (greater effort required) until the machine catches up to the speed where the sticks are being held. Likewise if you are traveling 3 mph and begin to push into a pile of gravel which slows the loader down do to the effort it must produce to fill the bucket, the sticks will push harder trying to get themselves back to neutral, this helps the operator "downshift" the travel speed to a slower speed, where the hydrostatic transmission has more torque.</p><p>The 853 the sticks move so easy, such a light effort, and even worse is that here is a lag in response, you want 1/2 a mph forward to pickup a new attachment so you begin to push the sticks forward, and for a split second nothing happens, so you continue to push the stick further forward, then wham your doing 2 1/2 mph instead of 1/2. They are so light that it s also hard to feel if you pushed both sticks a even amount to go straight forward. So at slow speeds you tend to wander to one side or the other.</p><p>I don't know of any way to get this out of the loader, I don't know what is designed different, but it doesn't act like any other skid I have run.</p><p>Does this sound like other 853s? or like the problem your having with it being too sensitive? </p><p>I'd like to hear of some things that may help. Its ok (not good, but ok) once you get used to it, but it is a pain if you jump from loader to loader.</p><p>Ken</p></blockquote><p></p>
[QUOTE="skidsteer.ca, post: 5597, member: 307"] I have never seen anything in the manual about adjusting the lag, or lack of feed back from the steering. That is what your refering to? as the foot pedals on my loader are as nice to use as any other bobcat I have run. Perry has hand controls in his, however I don't believe they are anyhting like the new electric over hydraulic joystick controls in the new loader. I believe they are just a morse cable that mechanically links the pivoting top of the steering lever to the loader control valve. The steering levers on my 853 are linked to the hydrostatic pumps with morse cables as well. There is no electrics involved here either. I'm not sure where the term “servo” comes from for these machines as I see nothing in the manual about a system any different then mine. Also the 853 was only made for a few years, and I don't know if the 863 also used the same hydrostat. The 700 series machines have some feedback into the steering sticks. The 853 does not. If a 700 machine is traveling 1 mph and push the sticks full forward to say 6 mph, the effort to push and hold the sticks at 6 mph is heavier (greater effort required) until the machine catches up to the speed where the sticks are being held. Likewise if you are traveling 3 mph and begin to push into a pile of gravel which slows the loader down do to the effort it must produce to fill the bucket, the sticks will push harder trying to get themselves back to neutral, this helps the operator “downshift” the travel speed to a slower speed, where the hydrostatic transmission has more torque. The 853 the sticks move so easy, such a light effort, and even worse is that here is a lag in response, you want 1/2 a mph forward to pickup a new attachment so you begin to push the sticks forward, and for a split second nothing happens, so you continue to push the stick further forward, then wham your doing 2 1/2 mph instead of 1/2. They are so light that it s also hard to feel if you pushed both sticks a even amount to go straight forward. So at slow speeds you tend to wander to one side or the other. I don't know of any way to get this out of the loader, I don't know what is designed different, but it doesn't act like any other skid I have run. Does this sound like other 853s? or like the problem your having with it being too sensitive? I'd like to hear of some things that may help. Its ok (not good, but ok) once you get used to it, but it is a pain if you jump from loader to loader. Ken [/QUOTE]
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General Bobcat Skidsteer Forum
are the servo's adjustable on a 853
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