Model 92 backhoe

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speedbear
420 crawler
420 crawler
Posts: 47
Joined: Fri Mar 02, 2012 8:05 pm
Location: Pgh, PA

Model 92 backhoe

Post by speedbear » Mon Feb 15, 2016 11:02 pm

I have a 92 backhoe mounted on a JD450 & I decided to sell them together.
I got an offer for just the backhoe. While doing a demo dig, it seems like the hoe lost a lot of digging/pulling power. The engine did not bog down at all. The hoe just sorta stalled. even in soft ground. The potential buyer said there is a hydraulic pressure bypass valve in the system & and that these sometimes bleed off pressure too soon, causing a weak machine. Being it is an older machine, could this by-pass valve be weak? I know nothing about the internals of the hoe, but it does sound plausible, as it worked great until now. Opinions/thoughts?

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