Results 1 to 13 of 13

Thread: Landing gear torque value for the nuts

  1. #1

    Join Date
    Sep 2021
    Posts
    5
    Post Thanks / Like

    Landing gear torque value for the nuts

    I have searched the site and can't find what the torque values should be for the three bolts/nuts (per side) for the landing gear. Can someone provide that information. I have changed the bungees and ready to reinstall.

    Thank you!

  2. #2

    Join Date
    Jan 2007
    Posts
    2,775
    Post Thanks / Like
    Likes KevinJ liked this post

  3. #3
    frequent_flyer's Avatar
    Join Date
    May 2021
    Location
    Arizona, USA
    Posts
    674
    Post Thanks / Like
    One of the owner performed tasks in the FX-3 build is to fit the landing gear attach bolts and torque them to spec. I questioned what seemed to be a ridiculously high torque and was told that's the way you have to do it.

    I brought this up with the DAR at airworthiness cert and he agreed that the torque used was inappropriate for bolts that are acting as hinges with only shear loading. Sometimes a torque wrench can be a dangerous tool in the wrong hands or with inappropriate torque specs.

  4. #4
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    21,812
    Post Thanks / Like
    Snug. Just did it yesterday.
    Click image for larger version. 

Name:	PXL_20220117_220513057.MP.jpg 
Views:	444 
Size:	145.9 KB 
ID:	59468

    Click image for larger version. 

Name:	PXL_20220117_221207851.MP.jpg 
Views:	449 
Size:	142.8 KB 
ID:	59469

    Click image for larger version. 

Name:	PXL_20220118_130911985.MP.jpg 
Views:	459 
Size:	125.5 KB 
ID:	59470
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
    Likes 180Marty liked this post

  5. #5
    hotrod180's Avatar
    Join Date
    May 2008
    Location
    Port Townsend, WA
    Posts
    3,875
    Post Thanks / Like
    Steve, the last pic looks like your dog is standing off someone approaching with a torque wrench in hand!
    Cessna Skywagon-- accept no substitute!

  6. #6

    Join Date
    Sep 2021
    Posts
    5
    Post Thanks / Like
    Thanks everyone, I really appreciate it!

  7. #7
    Crash, Jr.'s Avatar
    Join Date
    May 2015
    Location
    Anchorage, AK
    Posts
    897
    Post Thanks / Like
    Quote Originally Posted by Steve Pierce View Post
    Snug. Just did it yesterday.
    This. I'm a firm believer in the calibrated wrist. If you're mechanically inclined you should be able to tell when tension is "just right" on a bolt.

    Not to say there isn't a place for torque specs. Gear bolts just aren't one of those places IMO.

  8. #8
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,782
    Post Thanks / Like
    Quote Originally Posted by Crash, Jr. View Post
    This. I'm a firm believer in the calibrated wrist. If you're mechanically inclined you should be able to tell when tension is "just right" on a bolt.

    Not to say there isn't a place for torque specs. Gear bolts just aren't one of those places IMO.
    Crank it till things bend or break, back off half turn

    Lots of guys in the bike and sled world think torque is all you need to keep things together... I find that a touch of blue loctight with the torque makes up for lots of vibration.

    Sucks to have a bolt vibrate out 1/2 way through a race in which you are gaining ground on the leader fast.
    I don't know where you've been me lad, but I see you won first Prize!
    Likes Crash, Jr., DENNY liked this post

  9. #9

    Join Date
    Dec 2018
    Location
    Rangely, Co
    Posts
    87
    Post Thanks / Like
    My favorite mechanic in the big truck world said the proper torque is always a quarter turn before it snaps! It just takes a lot of practice to acquire the feel.
    Thanks JeffP thanked for this post

  10. #10

    Join Date
    Jan 2007
    Posts
    2,775
    Post Thanks / Like
    One place I tend to be careful and use a torque wrench is anytime I am going into cast or machined part with a bolt. Having to pull a head off because you striped out threads really sucks! DENNY

  11. #11
    Southern Aero's Avatar
    Join Date
    Jan 2008
    Location
    kcco/1ga2
    Posts
    241
    Post Thanks / Like
    Quote Originally Posted by Kid Durango View Post
    My favorite mechanic in the big truck world said the proper torque is always a quarter turn before it snaps! It just takes a lot of practice to acquire the feel.
    Around here it's similar ...........tighten till it starts to loosen then back up 1/4 turn
    ......... It doesn't cost any more to go first class! You just can't stay as long.
    Likes DENNY, Kid Durango liked this post

  12. #12
    brown bear's Avatar
    Join Date
    Feb 2004
    Location
    emporia ks
    Posts
    612
    Post Thanks / Like
    That backing it up a 1/4 turn only works on the little stuff.
    On the big stuff I go as tight as I can get it and then 1/2 turn more .

  13. #13
    Southern Aero's Avatar
    Join Date
    Jan 2008
    Location
    kcco/1ga2
    Posts
    241
    Post Thanks / Like
    Ahhhhhhhhhhh I do have a torque multiplier for that...............
    ......... It doesn't cost any more to go first class! You just can't stay as long.

Similar Threads

  1. Replies: 8
    Last Post: 07-08-2021, 04:41 PM
  2. WTB: WTB Cleveland torque plates for 1.25 gear
    By Webfoot in forum Parts and Pieces
    Replies: 2
    Last Post: 02-04-2021, 10:49 PM
  3. Lock nuts or castle nuts with cotter pin
    By Tim in forum Super Cub Repair Facilities
    Replies: 43
    Last Post: 12-28-2016, 02:26 PM
  4. what is the torque value for exhaust NUTS on 0-320
    By BOB HANCOCK in forum Super Cub Sick Bay
    Replies: 9
    Last Post: 04-14-2015, 11:36 AM
  5. source of landing gear axle nuts?
    By hooligan in forum Cafe Supercub
    Replies: 11
    Last Post: 02-09-2012, 02:10 AM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •