PS Magazine - TB 43-PS-670
PS, The Preventative Maintenance Monthly
ISSUE 670
SEPTEMBER 2008
10
PS 670
SEP 08
Dear Editor,
Recently we pulled maintenance on some FMTVs, and the cab doors
opened when the cab was raised. Imagine our surprise! This was a hazard
to anyone standing near the doors and could have damaged equipment.
Here’s a solution
I developed that I
think PS readers
might want to
try. Using 1/8”
aluminum stock, I
fabricated a safety
bracket that slides
over the seatbelt
mounting hardware
and through
the door’s open
window.
5“
3
1
/
4
“
7
1
/
2
“
90°
bend
Top View
4“
1
7
/
8
“
1
5
/
8
“
Side
View
made from
1
/
8
” aluminum stock
1“
1“
13
/
16
“
1
1
/
4
“
120°
90°
135°
3
1
/
4
“
7
1
/
2
“
Editor’s note:
Great idea! Normally, FMTV cab doors don’t pop open
when the cab is raised. But it
can
happen if the door isn’t fully latched or properly
adjusted, or if the cab is bent out of alignment. And on older models, the door can
open when the linkage becomes weak or loose.
TACOM LCMC approved some linkage changes to solve this problem, but not
every truck was updated with the improved hardware. So if the cab door on your
FMTV opens when the cab is raised, inspect the door linkage and door for proper
adjustment. Check the cab structure for damage, too. And to be on the safe side,
make this safety bracket.
The bracket is
U-shaped and acts
as a lock-out device so
the door won’t open.
The left and right
brackets are mirror
images of each other.
The notch fits over the
bracket on the shoulder
seatbelt. This simple
bracket can be made
using the dimensions in
these drawings.
Curtis Shelton
DOL-IMD
Fort Campbell, KY
FMTVs…
Cab Door
Control
Solution
Safety brackets…
…keep cab door from opening unexpectedly
watch out
for th--
there’s a
very simple
solution for
swinging
doors!
oops!
670.10-11.indd
1-2
7/31/08
3:49:52 PM
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