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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat 643 disconnect u-joint and buying manuals
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<blockquote data-quote="Tazza" data-source="post: 10026" data-attributes="member: 82"><p>Honestly the operators manual isn't worth it. Its really just common sense and service information. If you have the service manual you really don't need the operators one.</p><p>Removing the U-Joints are easy (well kinda).</p><p>Remove all hoses/fuel lines/wiring from the engine. Including the inlet and exhaust hoses/pipes. Remove the 4 bolts holding the engine down to the chassis. Use a block and tackle or some sort of hoist to a chain connecting to the 2 lifting points on the side if the head. Lift it up and pull the engine back and out. With the engine out you can replace the u-joints. Ensure you grease them up before re-installing the engine.</p><p>Installing it is the opposite but you need 2 ppl for this one. Lif the engine and sit it in the engine bay but not all the way back, you need to let the front sit on the lip of the chassis as you need to line the spine and drive up on the pump. Lay on the pump and push your hand through the blower housing and hold the joint up in-line with the spline on the pump, do NOT have any fingers or any part of your hand between the spline and joint, if the engone slips forward too fast you could loose a finger!. Get your helper to SLOWLY bar the engine forward till its just engaged. If it doesn't quite line up turn the engine slightly, i found holding the fan belt works for small movements. Push the engine forward till you can line the mounting bolts up. Re-connect everything, re-prime the fuel system and you are done!</p><p>Honestly it is easier than it sounds, but a helper is really a plus! Keep all your fuel hoses clean, plug them and the air intake. You don't want to damage anything. I pulled the engine on my 743 (same basic setup as the 643) worked on the joints and re-installed it in just over 2 hours. Thats from running to running. Take your time and you will be fine. Any questions just yell</p></blockquote><p></p>
[QUOTE="Tazza, post: 10026, member: 82"] Honestly the operators manual isn't worth it. Its really just common sense and service information. If you have the service manual you really don't need the operators one. Removing the U-Joints are easy (well kinda). Remove all hoses/fuel lines/wiring from the engine. Including the inlet and exhaust hoses/pipes. Remove the 4 bolts holding the engine down to the chassis. Use a block and tackle or some sort of hoist to a chain connecting to the 2 lifting points on the side if the head. Lift it up and pull the engine back and out. With the engine out you can replace the u-joints. Ensure you grease them up before re-installing the engine. Installing it is the opposite but you need 2 ppl for this one. Lif the engine and sit it in the engine bay but not all the way back, you need to let the front sit on the lip of the chassis as you need to line the spine and drive up on the pump. Lay on the pump and push your hand through the blower housing and hold the joint up in-line with the spline on the pump, do NOT have any fingers or any part of your hand between the spline and joint, if the engone slips forward too fast you could loose a finger!. Get your helper to SLOWLY bar the engine forward till its just engaged. If it doesn't quite line up turn the engine slightly, i found holding the fan belt works for small movements. Push the engine forward till you can line the mounting bolts up. Re-connect everything, re-prime the fuel system and you are done! Honestly it is easier than it sounds, but a helper is really a plus! Keep all your fuel hoses clean, plug them and the air intake. You don't want to damage anything. I pulled the engine on my 743 (same basic setup as the 643) worked on the joints and re-installed it in just over 2 hours. Thats from running to running. Take your time and you will be fine. Any questions just yell [/QUOTE]
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