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General Bobcat Skidsteer Forum
What holds the lapbar up on a 743?
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<blockquote data-quote="Chessie" data-source="post: 134697" data-attributes="member: 21571"><p>Yes, the outside bolt comes off first. (Shown clearly in the second picture that you posted.) Then the interior arrangement can come out of the "U" channel. The inside nut (3/4" wrench) has a threaded hole that accepts the first (outside) nut. You hold the 3/4" wrench on the "barrel" (around which is the spring) and loosen the other nut. (The first one and this other one are 9/16ths sockets.) Once you loosen it up, you can take it all apart. Clean up all the parts that touch each other with some solvent (diesel, fast orange, whatever). Then reassemble:</p><p></p><p> It goes: (from inside towards the outside)</p><p></p><p>1) bolt</p><p>2) round metal with a bend on it.. creates a "cam" or pressure</p><p>3) Bar/arm</p><p>4) number "1" shaped piece of metal. Pay attention to where the round-metal with a bend on it goes around/over the lap bar and ends on the "number 1" piece of metal. Pay attention to how this #1 sits inside the U channel before you took it apart... or review the other one which is still together in the original configuration (you didn't take both apart at the same times, did you???) See, this piece of metal that resembles a number "1" doesn't move when the lap bar is raised/lowered. It stays in place, against the inside (bottom?) of the U channel. As the lap bar moves up and down, it can find a "open area" in the metal and lock in place in the up position.</p><p>5) spring on the barrel.</p><p></p><p>Tighten the interior nut (you can't get to it when it's back in place in the U-channel, except maybe with an open-end wrench.. but you tighten it before it goes back in place).</p><p></p><p>Then, fight this arrangement back in place in the U channel and you replace/thread in the outside bolt.</p><p></p><p>Easy? Perhaps not! But you'll get it.</p></blockquote><p></p>
[QUOTE="Chessie, post: 134697, member: 21571"] Yes, the outside bolt comes off first. (Shown clearly in the second picture that you posted.) Then the interior arrangement can come out of the "U" channel. The inside nut (3/4" wrench) has a threaded hole that accepts the first (outside) nut. You hold the 3/4" wrench on the "barrel" (around which is the spring) and loosen the other nut. (The first one and this other one are 9/16ths sockets.) Once you loosen it up, you can take it all apart. Clean up all the parts that touch each other with some solvent (diesel, fast orange, whatever). Then reassemble: It goes: (from inside towards the outside) 1) bolt 2) round metal with a bend on it.. creates a "cam" or pressure 3) Bar/arm 4) number "1" shaped piece of metal. Pay attention to where the round-metal with a bend on it goes around/over the lap bar and ends on the "number 1" piece of metal. Pay attention to how this #1 sits inside the U channel before you took it apart... or review the other one which is still together in the original configuration (you didn't take both apart at the same times, did you???) See, this piece of metal that resembles a number "1" doesn't move when the lap bar is raised/lowered. It stays in place, against the inside (bottom?) of the U channel. As the lap bar moves up and down, it can find a "open area" in the metal and lock in place in the up position. 5) spring on the barrel. Tighten the interior nut (you can't get to it when it's back in place in the U-channel, except maybe with an open-end wrench.. but you tighten it before it goes back in place). Then, fight this arrangement back in place in the U channel and you replace/thread in the outside bolt. Easy? Perhaps not! But you'll get it. [/QUOTE]
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What holds the lapbar up on a 743?
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