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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Valve Body Leak on 743
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<blockquote data-quote="mike.ehman@ecm-inc.com" data-source="post: 8491" data-attributes="member: 1092"><p>My 743 developed a serious hydraulic leak, which appeared to be coming out the bottom of the main valve body that runs the lift and tilt functions. After many hours of exploration I determined it was a flex hose that connects to the bottom of the valve. Long story short I finally dug into it and disconnected all of the hard lines and hoses going to the front side of the valve to a point I could get a stubby wrench on the fitting and sure enough it had worked it's way loose to the point the fluid was running out at a rate of 5 gallons in the matter of minutes. I replaced all the hoses, tighten all the fittings and refilled with fluid and waited. No leaks, great, I was feeling pretty good and went in for lunch. When I came back out there was again another puddle of fluid under the unit only this time it was a little smaller so I started it up again and waited, sure enough looking from the engine compartment towards the front the back of the valve body has 2 round caps with 3/16 allen head screws holding them in place and I noticed fluid oozing out from the top one at a pretty good flow. Before I get in too far over my head does any one have any suggestions as to how to approach the latest leak? Thanks, Mike</p></blockquote><p></p>
[QUOTE="mike.ehman@ecm-inc.com, post: 8491, member: 1092"] My 743 developed a serious hydraulic leak, which appeared to be coming out the bottom of the main valve body that runs the lift and tilt functions. After many hours of exploration I determined it was a flex hose that connects to the bottom of the valve. Long story short I finally dug into it and disconnected all of the hard lines and hoses going to the front side of the valve to a point I could get a stubby wrench on the fitting and sure enough it had worked it's way loose to the point the fluid was running out at a rate of 5 gallons in the matter of minutes. I replaced all the hoses, tighten all the fittings and refilled with fluid and waited. No leaks, great, I was feeling pretty good and went in for lunch. When I came back out there was again another puddle of fluid under the unit only this time it was a little smaller so I started it up again and waited, sure enough looking from the engine compartment towards the front the back of the valve body has 2 round caps with 3/16 allen head screws holding them in place and I noticed fluid oozing out from the top one at a pretty good flow. Before I get in too far over my head does any one have any suggestions as to how to approach the latest leak? Thanks, Mike [/QUOTE]
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Valve Body Leak on 743
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