Not sure what you found with this post, but I just had the same issue with my Saratoga. Pulled the switch, gear started to lift, breaker popped, and gear had to be e-extended as nose gear didnt show light.... I had less that one hour on a newly installed Power Pack,,,,,Flew it to my shop and they immediatly lifted the wings for a check. The motor in new power was making all kinds of racket......Bad Pump......Had to order a second one and fly it in.....$4950 plus a 2k core exchange.....Bunk
I ordered a rebuilt power pack for a Lake Amphibian. I took a look inside the reservoir before I installed it, and found it heavily contaminated with glass bead. Sent it right back, as the hydraulic pump itself was likely all scored up already, just from testing at the rebuilders. If it even got tested at all.
I found numerous Kelly rebuilt alternators with way too much grease in the rear bearing, grease that extruded when the rotor shaft was inserted, and that grease ended up on the slip rings and brushes. That added so much resistance to the field circuit that the alternator could barely function. I also found locally-rebuilt alternators with the same issue. Do these people EVER read the service manuals? Electrosystems used to publish those manuals. Maybe they still do.
I was in the air/vacuum/hydraulic brake rebuilding business for 12 years. In that time I rebuilt, or oversaw the rebuilding of, about 17,000 air compressors and hundreds of thousands of the various control and relay valves, along with many vacuum/hydraulic and hydraulic/hydraulic boosters. We tested every component thoroughly before shipping. No exceptions. Every one. No leakage was permitted, no sticky operation, and compressor pumping performance and bottom end oil flow was measured. That way, the legitimate warranty claims were miniscule. Most of the stuff that did come back failed because the dirty system had blown junk into the component, or lousy troubleshooting had misidentified the problem in the first place. We had an 800-number for mechanics to call when they couldn't figure the thing out. I answered a lot of those calls, hundreds of them, and afterward received thanks for the advice maybe twice.
Which is why I constantly advise owners with airplane problems to pay someone knowledgeable to do the troubleshooting. It can be so much cheaper in the end. Too many mechanics just start throwing parts at the problem. Troubleshooting is a skill that should be taught and tested in basic training, but then the understanding of the basics, like electrical theory, would have to form the basis of those courses, and too many don't care to work at it to get the understanding.
