PS Magazine - TB 43-PS-706
PS, The Preventative Maintenance Monthly
ISSUE 706
SEPTEMBER 2011
20
PS 706
SEP 11
21
PS 706
SEP 11
T
o get a gunner restraint system (GRS) kit for M939/A1/A2-series 5-ton trucks equipped
with the light weapon station (LWS), order NSN 2540-01-582-2639. The restraint system
prevents a gunner from being ejected in an accident or rollover and
must be
used on
these vehicle models: M923/A1/A2, M925/A1/A2, M927/A1/A2, M928/A1/A2, M931/A1/
A2 and M932/A1/A2. Also, an instructional video on how to wear the GRS harness is
available through the Army Training Network at:
For further details, see Page 61 of PS 697 (Dec 10):
L
ooking for LED lights to install on
your unit’s HMMWVs?
That’s probably
a tough search because the TMs don’t
list the approved LED lighting yet.
But we’ve got good news!
Your
search is over.
The authorized NSNs in
this table should square you away.
Just remember to replace both the
left and right sides when you swap out
incandescent lights with LED lights.
Frame
NSN
Location on Vehicle
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
DS Grill Frame
Windshield Frame
PS Fender Frame
PS Front Door Frame
PS Rear Door Frame
PS Canopy Frame
PS Bottom Corner Strut
PS Upper Corner Strut
Cargo Doors Support Frame
PS Cargo Door Frame
DS Cargo Door Frame
DS Upper Corner Strut
DS Bottom Corner Strut
DS Canopy Frame
DS Rear Door Frame
DS Front Door Frame
DS Fender Frame
NSN
6220-01-
Nomenclature
564-0484
566-3669
566-4110
566-4728
586-4949
LED blackout, drive and
composite lamp kit (full kit)
LED blackout drivelight assembly
LED front composite light assembly
LED rear composite light assembly
LED headlight
HMMWVs…
M939 Gunner Restraint System
Authorized LED Lights
ok buddy,
looks like
you’re ready
to roll out!
wait!
you haven’t
installed my grs kit!
that’s
mandatory
before I hit
the road!
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
here’s what
corresponding
frames are
available…
See your FSR for instructions.
706 20-21.indd
1-2
7/25/11
4:57 PM
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