Hradec Posted December 6, 2019 Report Share Posted December 6, 2019 Good morning, Been lurking for a while, finally got my plane into a hangar and starting to resurrect my 1964 m20e, What is the final word on landing gear grease type and control tube phenolic block lubricant? Do I need to mix anything into the grease? How many grease fittings on the gear? Plane is located in chicago suburbs, so hot and cold climate. Thanks! Glenn 1964 m20e 2 Quote Link to comment Share on other sites More sharing options...
Yetti Posted December 6, 2019 Report Share Posted December 6, 2019 18 zerts seems to ring a bell. it's like a easter egg hunt 1 1 Quote Link to comment Share on other sites More sharing options...
Yetti Posted December 6, 2019 Report Share Posted December 6, 2019 The S&M manual has a nice picture with all the places to lube. Quote Link to comment Share on other sites More sharing options...
Hradec Posted December 6, 2019 Author Report Share Posted December 6, 2019 I've got the old manual with the grease listings in mil spec numbers, just curious what the final word on equivalents is and if I must mix anything into the grease. Thanks Quote Link to comment Share on other sites More sharing options...
tmo Posted December 6, 2019 Report Share Posted December 6, 2019 I believe this thread is of interest... Quote Link to comment Share on other sites More sharing options...
Hank Posted December 6, 2019 Report Share Posted December 6, 2019 There are 8 zerks on each main gear, and 11 zerks on the nose. I find and clean all of them on one leg before greasing any, and count them off as I grease. Always start at the top with the grease gun! 1 Quote Link to comment Share on other sites More sharing options...
Hradec Posted December 6, 2019 Author Report Share Posted December 6, 2019 14 minutes ago, Hank said: There are 8 zerks on each main gear, and 11 zerks on the nose. I find and clean all of them on one leg before greasing any, and count them off as I grease. Always start at the top with the grease gun! What grease do you use for the gear? Quote Link to comment Share on other sites More sharing options...
Hank Posted December 6, 2019 Report Share Posted December 6, 2019 I keep #22 in a grease gun. My A&P has prop grease, it's either #5 or #6--there should be a sticker on your hub. For God's sake, don't mix them up! If I remember, #22 is pretty universal, I think that's also what I put in the trim jack screw. Quote Link to comment Share on other sites More sharing options...
Hradec Posted December 6, 2019 Author Report Share Posted December 6, 2019 And for the control tube phenolic blocks? Quote Link to comment Share on other sites More sharing options...
Hradec Posted December 6, 2019 Author Report Share Posted December 6, 2019 Thank you so much, I'm on my way to Aircraft Spruce and then Ito my Hangar wanted to save myself a trip Quote Link to comment Share on other sites More sharing options...
PT20J Posted December 6, 2019 Report Share Posted December 6, 2019 I use (per service manual) Aeroshell 22 for zerks Aeroshell 7 for the guide blocks and trim screws Lubriplate 630AA for the gear ball screw Mobil SHC 100 for the wheel bearings Tri-flow for the rod ends Any light mineral oil such as 3-in-1 for the control surface and other bearings. Clean out all old grease if you are not sure what was used before since some are not compatible with each other. Skip 3 Quote Link to comment Share on other sites More sharing options...
Hradec Posted December 6, 2019 Author Report Share Posted December 6, 2019 1 hour ago, PT20J said: I use (per service manual) Aeroshell 22 for zerks Aeroshell 7 for the guide blocks and trim screws Lubriplate 630AA for the gear ball screw Mobil SHC 100 for the wheel bearings Tri-flow for the rod ends Any light mineral oil such as 3-in-1 for the control surface and other bearings. Clean out all old grease if you are not sure what was used before since some are not compatible with each other. Skip Thanks Quote Link to comment Share on other sites More sharing options...
Yetti Posted December 7, 2019 Report Share Posted December 7, 2019 The Prop guy around here suggests replacing 6 with 5 as the reformulated 6 has separation issues and sucks as a prop hub lube. 1 Quote Link to comment Share on other sites More sharing options...
Browncbr1 Posted December 7, 2019 Report Share Posted December 7, 2019 2 hours ago, Hradec said: Thanks I highly recommend pulling the phenolic blocks that hold the trim torque tubes and cleaning them out really well and checking tubes for wear according to the SB. Dirt, sand, grit mixes with lubricant and hardens over the years, which acts as sand paper and just wears through your tubes. Replace with the antichaffe tape per the SB. Be very careful in that area. Those tubes are $400 if factory is open and near unobtainable if closed. 1 Quote Link to comment Share on other sites More sharing options...
corn_flake Posted December 7, 2019 Report Share Posted December 7, 2019 I broke one of the zerk fitting when I grease my gear last time. I have been advised by a A&P to use the needle greaser instead of the usually push on grease gun. 1 Quote Link to comment Share on other sites More sharing options...
Guest Posted December 7, 2019 Report Share Posted December 7, 2019 For grease, you might want one of these. Clarence Quote Link to comment Share on other sites More sharing options...
carusoam Posted December 7, 2019 Report Share Posted December 7, 2019 Black PVC Grease gun tree, growing to the sky... While learning about the various updates also learn about how some grease, when it ages turns into rocks... and look at the grease left on any flight controls, trim, and related gearboxes... PP thoughts only, not a mechanic... -a- Quote Link to comment Share on other sites More sharing options...
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