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Message: <blockquote data-quote="willie59" data-source="post: 44431" data-attributes="member: 5827"><p>In most cases, you can replace control shaft seal without removal or disassembly of drive pump. It requires removal of the control arms connected to the pump control shaft and remove the bearing retainer plate with the seal. Remove carefully and slowly though, there's some bearing loader shims and spacer under that plate, you'll also want to replace the o-ring seal that seals the plate. Raise the loader arms and install the safety prop prior to beginning work, that makes it a lot easier to access the components without arms in the way. Once you get the repairs done, you may find the machine will now creep and will need to adjust the neutral of control arms.</p></blockquote><p></p>