[I'm also sending this to your email address, as you requested, but
I'd prefer to discuss this here where we can learn from others, and
preserve the conversation to help future searchers.]My NAA hydraulic problems sound quite different from yours -- I've
read your postings over the past few days but had little to add -- but
maybe it'll help to discuss our separate problems. (I'm planning to
try and fix mine this winter.) Here's a brief summary of my problem: My lift drifts down when the power is off, and it "hiccups"
continually (but works otherwise, and holds quite a bit of weight).
By "hiccup" I mean it drops slightly (maybe an inch or an inch and a
half when observed at the end of the bottom links) and then quickly
corrects itself. The heavier the implement, (and to some extent, the
higher the engine RPMs,) the more frequently these corrections happen. This doesn't make it unusable, but it's irritating, especially with a
heavy implement, to be bouncing like that all the time, and I suspect
it puts stress on the system that can't be good for the long run. I've read the I&T manual's sections about hydraulic problems and most
of ZANE's (and others') postings on the subject, and I suspect the
master cylinder is leaking -- at least that's what I'll look for
first. Other difference: I have a piston pump rather than a vane pump, and I
have a single-action hydraulic remote that runs to the front of the
tractor -- currently unused, probably used for a front-end loader or
something similar in the past. (I don't know whether that will
complicate the process of disassembling and repairing mine -- anyone
know?) (I'm seriously considering getting one of ZANE's repair documents,
based on the praise I've read from other posters, but will wait until
I'm ready to start working on this.) Do you know anything more than you've already posted about *your* problem yet?
| 
