PS Magazine - TB 43-PS-703
PS, The Preventative Maintenance Monthly
ISSUE 703
JUNE 2011
36
PS 703
JUN 11
Dear Sergeant Blade,
When working on the Black Hawk’s main landing gear shock struts, our
mechanics have a tough time with using a socket on the end of the torque
wrench because the socket is always slipping off the nut.
The initial setup in WP 0453 00 of TM 1-1520-237-23-6 calls for a
torque wrench. When it’s time to use the wrench, we have to work in a very
tight space. The nut we are trying to work on is behind the main landing
gear drag beam in between the tire and the drag beam.
The torque on the nut is 110-220 lb-ft. If you try to use a socket on
the end of a wrench, it slips off the shock strut nut every time. That gets
frustrating!
To solve the slippery socket problem, we made a shock strut tool that will
not slip off the nut and works every time. Here is how to make it:
You need some
1
/
4
-in steel stock (MIL-S-6758, comp 4130) and a
12 point,
3
/
4
-in drive, socket, NSN 5120-00-189-7931. Cut the socket
in half and then weld (TIG weld using a 1F standard) the halves at the
opposite ends of the steel plate as shown in the diagram below.
The tool should look like so:
The tool is used at a 90° angle for torque (therefore not adding to the
length of the torque wrench nor torque factor). The tool can be used on a
breaker bar to loosen the torque on the nut.
This tool saves us time and prevents possible damage to the shock strut
nut and our knuckles when removing it.
SGT James Jones
Ft Hood, TX
Dear SGT Jones,
Thanks for the great idea. Now you can do
maintenance without slipping.
UH-60 Series…
No Slip Shock Strut Tool
Attach fabricated tool
to nut on shock strut
Use breaker
bar to loosen
torque on nut
Use torque wrench
to tighten nut
every time I try
to work on the main
landing gear shock
struts this socket
keeps slipping off
the nut.
try this, it’s made
specifically for
the shock struts
so it won’t slip
off the nut!
6
1
/
4
”
1
/
4
” radius weld, around socket and drive. (TIG) 1F standard
2
1
/
4
”
1
7
/
8
”
3
/
4
”
1
/
4
”
2”
1”
1”
703.36-37.indd
1-2
5/13/11
1:44 PM
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