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  1. lonfu

    753G Bobcat 2001 no lift no tilt

    Huh???? not sure what you are writing about??? Pix???
  2. lonfu

    753G Bobcat 2001 no lift no tilt

    yes, about 10 years ago I had that problem. the fuel pick up tube rotted off and fell to the bottom of the tank. 325 hours. At the time it made me suspect the quality of Bobcat parts. I left the pickup tube in the bottom of the tank and installed a new one. So far it has lasted 10 years with out...
  3. lonfu

    753G Bobcat 2001 no lift no tilt

    The continuing story of my woe... so, replaced 9 year old batt thinking that low amperage could be the culprit, but no... still have problems. pulled out hydraulic schematic and none of my hoses seem to be cross connected. Ok, so turns out that the bics stem/solenoid valve controls the (bic's...
  4. lonfu

    753G Bobcat 2001 no lift no tilt

    yes, I know what you are thinking, yes, the small one is on top and the big one is on the bottom... before pix of spool arrangement. the big one is behind the hose...
  5. lonfu

    753G Bobcat 2001 no lift no tilt

    yes, thanks for responding.... any help is good help... So I went back out and reinspected my hose installation and just couldn't see any possible mixups.... I did not need to remove any of the stainless steel pipes. the only rubber hoses that I removed was the manual release valve but I left...
  6. lonfu

    753G Bobcat 2001 no lift no tilt

    yes, thank you for responding. yes, I have the correct valve. on the valve body there are 5 electric solenoids. the center one is the BICS valve. Unless, I have totally flown the coop, it is the only stem valve that is on the valve body. because it works, both on the unit and off the unit is...
  7. lonfu

    753G Bobcat 2001 no lift no tilt

    main rams are fully extended and arms are raised with the safety lock in place. yes, pedals move, the spool valve lock solenoids are unlocked and the spool valves can be moved. when I try to lift the arms to free the safety lock or try to change the tilt angle, the rams move an inch or so and...
  8. lonfu

    753G Bobcat 2001 no lift no tilt

    2001 753G Bobcat, bought this when it was one year old, now has about 550 hours on machine. Spool valves leaking from rear. I've rebuilt auto trans many times over the last 40 years or so. Replaced the leaking spool valve orings. Used youtube vids as reference and correct service manuel for...
  9. lonfu

    Bobcat 753 boom/bucket interlock

    read this blog with some interest due to the problem similar to mine. My unit was working correctly except had a leak in the lift and trim spool seals. I have a 01 753G 532hours, bought when 1 year old, with no seat sensor. all lights light up when I push the button, the lift tilt spool...
  10. lonfu

    Bobcat 753 spool valve seals where to purchase?

    this shows how long the spool valve is. the entire valve body must be removed or rotated to remove the spool valve due to it's length. what a huge PIA... 2001 753G
  11. lonfu

    Bobcat 753 spool valve seals where to purchase?

    finally got the spool valves pulled from the bobcat valve body. Had to disconnect all the hydraulic hard lines and tip the entire valve forward about 30 degrees, then tuck the fuel fill hose under the valve body. Had to loosen the hard line hold down hardware on the opposite side of the body...
  12. lonfu

    Bobcat 753 spool valve seals where to purchase?

    replacing the spool seals in a 01 753G. has solenoids that lock the spool valves, hence the spool valves are 2" longer. how do I get them out of the back as the fuel fill hose is in the way. Almost looks like there is not enough space between the valve body and main pump???? lower clamp on the...
  13. lonfu

    10W-30 oil for hydraulics

    Bobcat 753 2001. rebuilt lift cylinders due to leaks. No other leaks on 550 hrs. unit. refilled with shell rotella 10w30 hydraulic tractor oil. 2 more leaks started after running one day of work. Bought from dealer with 100 hrs in 03. suspect either dealer added stop leak or bobcat fluid...
  14. lonfu

    Bobcat 753 starting problems

    Butts, balls and batteries.... When I was a youngster, about 18 or so there was this old cranky mechanic in our shop. You, know the type, face looks like a worn out leather seat, he wreaks of engine smells even when he has freshly bathed and always looks greasy. When he'd work, I'd swear he'd...
  15. lonfu

    Bobcat 753 starting problems

    Help.... Heck, I thought I was old at 62!!! still fixing my play toys...... Ok, there are 2 kinds of tanks, one like I have on my 2001 and then there is the other kind behind the seat. May I suggest you call these folks, they were super helpful in getting me the correct part for my unit...
  16. lonfu

    773 bobcat power problems

    what about the fuel pickup tube, some times they break off near the top so if you simply add fuel the symptoms will go away until you get down to where the break is. When the tube first cracks, it pulls air and not enough fuel and gives the illusion that something is wrong with the engine, when...
  17. lonfu

    753 main belt troubles

    The pointer was set to about 2:30. I ordered a new belt but got the wrong one so I cleaned the pulley's and belt and reinstall. Your right the inside of the belt had a few cracks in it. So I've reordered a new one. I couldn't get the pointer to move when I reinstalled the old belt, pryed on it...
  18. lonfu

    753 main belt troubles

    So, I have a 2001 753G with 471 hours. It has been getting more noisy when turning or starting movement. Pulled the main belt cover and it is a bit greasy, so are the pulleys. It is the original belt but seams to be in good shape. My first thought was the tensioner was out, but it seems to be...
  19. lonfu

    We had gun fire today at the job site.

    I know that this is probably dumb, but what good will a shotgun do if you are sitting in the portapot? 2nd thing is what good is a pistola if you are sitting in the portapot? I carry, sometimes, when I feel like it. But, nothing worse than trying to take a wizz with a pistol on your belt...
  20. lonfu

    Bobcat 753 starting problems

    Thought I'd mention, the reason that you don' t blow air back through the fuel line is that there is a brass check valve on the very end of the fuel pickup pipe and it closes when the engine stops, so if you try to clear the line then you will just blow the check valve off into the tank or break...
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