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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat 773G Hydraulic Issue
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<blockquote data-quote="brdgbldr" data-source="post: 126183" data-attributes="member: 7474"><p>Before digging into the control valve I would <strong>rebuild the "Pressure Release Valve"</strong>. Definitely check or replace the solenoid. Since your pressure doesn't seem to be releasing this valve could be the whole problem. If the pressure is not releasing it could be binding other parts and not allowing them to move. It should be located near the control valve but is on its own bracket. Number 27 on the photo I've attached.</p><p></p><p>If the "Pressure Release Valve" is not the problem then move to the control valve.</p><p></p><p></p><p>As for the control valve auxiliary spool and valves, I would get all of the seals and O-rings for sure. They do have seal kits listed in the parts list but they will be for the entire control valve. Not sure what all they include. </p><p></p><p>As for hard parts, I think the springs for sure and all of the washers and sleeves. <strong>Don't forget that there are springs on both sides of the spool</strong>.</p><p></p><p>A new solenoid if you think the old one may be bad.</p><p></p><p>I'm not sure I would bother getting a new auxiliary spool or not. There is a chance something could be wrong with it, but if there is, chances are it has messed up the housing it goes into also. It wouldn't hurt to have it on hand and if not used could be returned in the allotted time frame.</p><p></p><p>If you are going to remove the control valve to work on it I would definitely look at buying a seal kit and replacing all of them. This will also give you a chance to inspect the other spools anns springs. Also, you may want to think about looking at the load checks and springs.</p><p></p><p>Just make sure you have all of the O-rings you need. For some reason Bobcat never seems to include them with rebuild or parts kits.</p></blockquote><p></p>
[QUOTE="brdgbldr, post: 126183, member: 7474"] Before digging into the control valve I would [B]rebuild the “Pressure Release Valve”[/B]. Definitely check or replace the solenoid. Since your pressure doesn’t seem to be releasing this valve could be the whole problem. If the pressure is not releasing it could be binding other parts and not allowing them to move. It should be located near the control valve but is on its own bracket. Number 27 on the photo I’ve attached. If the “Pressure Release Valve” is not the problem then move to the control valve. As for the control valve auxiliary spool and valves, I would get all of the seals and O-rings for sure. They do have seal kits listed in the parts list but they will be for the entire control valve. Not sure what all they include. As for hard parts, I think the springs for sure and all of the washers and sleeves. [B]Don’t forget that there are springs on both sides of the spool[/B]. A new solenoid if you think the old one may be bad. I’m not sure I would bother getting a new auxiliary spool or not. There is a chance something could be wrong with it, but if there is, chances are it has messed up the housing it goes into also. It wouldn’t hurt to have it on hand and if not used could be returned in the allotted time frame. If you are going to remove the control valve to work on it I would definitely look at buying a seal kit and replacing all of them. This will also give you a chance to inspect the other spools anns springs. Also, you may want to think about looking at the load checks and springs. Just make sure you have all of the O-rings you need. For some reason Bobcat never seems to include them with rebuild or parts kits. [/QUOTE]
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