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Bobcat Compact Track Loaders
T300 brake release problem(s)
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<blockquote data-quote="Tman0001" data-source="post: 63555" data-attributes="member: 8734"><p>THank U for your response. I am testing the hydraulic line that feeds the brake. The line is disconnected from the drive motor and the pressure guage is installed at the end of this hydrualic line. the drive motor brake port is blocked off. Since I am testing before the drive motor I am testing real pressure that serves the brake (Left side) therefore I beleive the drive motor assembly should at this point be irrellivent. The 960 psi was measures at the charge pump output while at full throttle. The measurement at idle was muchless (approx 400psi). According to bobcats manual and the manufacture of the charge pump, this is correct pressure output. I did have low pressure codes popping up and the tracks locking up repeatedly before I had the charge pump replaced (pump was hammered inside) but since then I no longer have the low pressure warnings and the tracks worked fine . I also had both drive motors rebuilt to elliminate any future problems with them. Its been several months of use and now I have this problem occurring. It seems odd (Baffling) that one brake would release fine and yet the other is not due to low pressure since both brakes are served in parrallel after the the brake valve. Bobcats manual hydrualic schematic shows two brakes yet the same manual in discussion(s) state the machine only has one brake..which is clearly inaccurate since I already had both drive motors rebuilt and visually inspected the motor interior components to confirm brakes on both motors. No idea where to find this charge pressure releif valve..or how to addjust it =(</p></blockquote><p></p>
[QUOTE="Tman0001, post: 63555, member: 8734"] THank U for your response. I am testing the hydraulic line that feeds the brake. The line is disconnected from the drive motor and the pressure guage is installed at the end of this hydrualic line. the drive motor brake port is blocked off. Since I am testing before the drive motor I am testing real pressure that serves the brake (Left side) therefore I beleive the drive motor assembly should at this point be irrellivent. The 960 psi was measures at the charge pump output while at full throttle. The measurement at idle was muchless (approx 400psi). According to bobcats manual and the manufacture of the charge pump, this is correct pressure output. I did have low pressure codes popping up and the tracks locking up repeatedly before I had the charge pump replaced (pump was hammered inside) but since then I no longer have the low pressure warnings and the tracks worked fine . I also had both drive motors rebuilt to elliminate any future problems with them. Its been several months of use and now I have this problem occurring. It seems odd (Baffling) that one brake would release fine and yet the other is not due to low pressure since both brakes are served in parrallel after the the brake valve. Bobcats manual hydrualic schematic shows two brakes yet the same manual in discussion(s) state the machine only has one brake..which is clearly inaccurate since I already had both drive motors rebuilt and visually inspected the motor interior components to confirm brakes on both motors. No idea where to find this charge pressure releif valve..or how to addjust it =( [/QUOTE]
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Bobcat Compact Track Loaders
T300 brake release problem(s)
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