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More follow up on the emergency hand pump.
The three O rings went into the pump housing with modest effort but fairly straight forward. After reinstall, I cycled the gear many times (on jacks) and everything worked well.
Observation: it now takes 16 pumps on the emergency hand pump to get a down and locked gear; before it took 22 pumps. A noticeable difference.
Happy flying.
Jeff L
This is a brief update on my Emergency Gear Down Hand Pump service. The pumps have a ring Rebuild Kit (Lancair part# HC-490) which contains three O-Rings:
O-Ring Hand Pump plug (Item 33X3)
O-Ring Polypak Hand Pump (Item 4615.1870-0875)
Wiber Hydralic Cylinder Main Gear Down (Item 940-3)
This part# HC-490 (~$10) is not listed on the aerocraftparts.com website. Michelle <MichelleG@lancair.com> provided this quickly. Replacment of these rings does not look complicated.
I'll be installing these rings shortly, and will have some follow up reports in a couple months of use.
Jeff L
My LIVP is in annual now, so I've pulled everything out for a thorough inspection (and floor vacuuming of the accumulum of dirt).
I note the gear down hand pump hydralic valve (between the front seats) has a small weeping leak of hydralic fluid. It appears to be from the bottom gaskets or ring seals. I'm about to dive into that subject, but I am posting to others who have dealt with it. Lessons learned? Best fix technique? Complications and pitfalls encountered? Cheaper to just replace?
Share your past experience. Thanks.
Jeff Liegner
LIVP in New Jersey
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