PS Magazine - TB 43-PS-596
PS, The Preventative Maintenance Monthly
ISSUE 596
JULY 2002
• Be sure the inner wrench is inside the
outer wrench. Then slide both wrenches
over the lug nuts. The inner wrench fits
over the
3
∕
4
-in square inner spacer nut,
while the outer wrench fits the 1
1
∕
2
-in
outer nut.
• To loosen the outer nut, slip the bar
handle through the smallest hole and
heave. Remember that the nuts on the
left side of the truck or trailer have left-
hand threads (marked with an L on the
stud end), while the right-side ones have
right-hand threads (marked with an R).
PS 596
JULY 02
6
PS 596
JULY 02
7
•
After you have removed
the outer nuts and wheel,
you can loosen the square
inner nut. Use the longer
handle and slide it through
the larger hole. Pull the
normal way to loosen
the nut.
•
After you’ve loosened
the outer nuts, you can line
up the two holes on the
wrench and slide the bar
handle through them.
This makes a T-handle for
re-moving the outer nut.
•
Once the inner nut is
loose, use just the inner
wrench and the longer
handle as a T-wrench.
Dual-mounted Wheels…
W
heel stud nut wrench, NSN 5120-00-378-4411, is just what you need to loosen
a frozen outer lug nut from an inner wheel adapter spacer nut on duals like those
used on various trucks and trailers.
The wrench, part of the No. 1 Common shop set, lets you break loose the outer
nut without breaking the stud or stripping threads.
Example: A nut
with a left-hand
thread would loosen
if you turned a regu-
lar wrench clockwise.
With this wrench,
you turn it counter-
clockwise.
Place wrench
on nuts
Use small hole for
right-hand outer
hex nut
Slide bar through
both holes to make
T-handle for hex nut
I don't know
which is gonna
give
first
...
the lug nut or
Private jones!
reverse
these
procedures
to
tighten
the nuts.
Now here’s the
tricky
part… When using the small
hole, turn the wrench the
opposite way you normally
would to remove the nut.
That’s
because of
the gears
in the
wrench.
Problem is,
instructions on how
to do the job are
pretty hard to find.
So here’s how you
use the wrench…
596. 06-07 (C)
6/3/02
5:33 PM
Page 1
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