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Replacing Bobcat loader control valve seals

Discussion in 'Skid Steers' started by willie59, May 31, 2010.

  1. willie59

    willie59 Super Moderator

    Dec 21, 2008
    Service Manager
    Knoxville TN
    Glad to hear you got is sorted out sid rust. :cool:
  2. FlatTire

    FlatTire Member

    Nov 13, 2020
    Your thread with instructions is greatly appreciated Willie!! I just finished the spool seals on my 753, and i felt like a Chinese body contortionist trying to get to all the allen heads!
  3. Mr. John

    Mr. John New Member

    Dec 28, 2020
    Thank you Willie59! Your initial post is going on 11 years and there isn't anything better out there. I completed replacing the new seals in a 773F, slightly different than the "G", but on page 4 of the forum explains the difference in the seal placement from excalibor67 and confirmed by Willie59. The "F" series can be accessed from the top without going through the side access panel. Take out one spool at a time...taking out the top one first giving better access to the allen bolts on the bottom one. It is a tight fit accessing the bolts along the side wall. It is a "feel" process rather than "sight" getting the allen wrench into place. Assembly was considerably quicker by complete assembly and installation of the bottom spool first then the top. This allows for easier access to starting the bolts. Also, rather than a "seal kit" at $85 from Bobcat and a 3 week wait, only 4 seals are needed at $3.80 "on-line" or $4.25 through Bobcat which they have in stock. The seal kit gives seals an o-rings for numerous applications. After a half day of labor, it is up and running with no leaks. Well worth doing it yourself and the $17 for seals. Thanks guys!!
    FlatTire likes this.
  4. shehorn

    shehorn New Member

    Mar 28, 2021
    A45A8BA8-FF05-4ADF-943B-5C1C040AAD28.jpeg I have read this post a few times but still struggling where to start. Would you recommend taking the lock valve off to gain access to the Allen bolts. This is a 773 machine.
    Last edited: Apr 1, 2021
  5. gta18

    gta18 Member

    Nov 8, 2021
    los angeles
    Hi Guys,

    I just purchased an unknown hours 1994 753H I believe because of it having 1 aux set pair on the left front side. I'm slowly fixing things on it and have so far have unstuck the 2 sov body's for the aux and got that working.

    Now I'm onto troubleshooting the Lift arm And Bucket tilt that slowly (about an hour) the arm goes from fully raised to down to the ground.

    Will the leaking spool seals cause this problem? It happens to both lift and trebuchet tilt.

    Thank you