TB-9-2350-277-40-P-1
CARRIER, MORTAR, 120-MM M121, SELF-PROPELLED M1064A3
TECHNICAL BULLETIN; INSTALLATION OF CREW II MODIFICATION KIT PART 1 OF 4
JUNE 2009
TB-9-2350-277-40-P-1 - Page 15 of 100
TB 9-2350-277-40&P-1
INTRODUCTION
0001 00
0001 00-1
PURPOSE
The purpose of this technical bulletin (TB) is to provide instructions and guidance on the method of
modifying the M1064A3, 120-MM M121, Self-Propelled Mortar Carrier for CREW II.
It further
provides instruction on the installation of the CREW II modification kit P/N 12498030.
The CREW II
modification kit provides mounting for the next generation of improvised explosive device (IED)
jammers.
The modular CREW II “plug and play” design, allows the main line replaceable unit (LRU),
FRF-105C dual antenna, and the remote control unit (RCU) to be utilized by any Heavy Brigade
Combat Team (HBCT) vehicle. The M1064A3 location was chosen to provide the least impact on
mission requirements, for example the 120-MM mortar must retain full operation for fire missions and
the commander’s cupola with .50 caliber machine gun
must rotate 360°; however, care must be
taken when operating any weapon toward the left rear when the antenna is fixed in that position.
GENERAL
1.
Priority.
This bulletin is classified NORMAL.
2.
End item(s) to be modified.
This TB applies to the M1064A3, 120-MM M121, Self-Propelled
Mortar Carrier, 2350-01-369-6082, P/N 8750287.
3.
Module(s) (components, assemblies, subassemblies, boards, and cards) to be modified.
Not
applicable.
4.
Parts to be modified.
Not applicable.
5. Application.
a. Time compliance schedule.
Not applicable.
b.
Lowest level of maintenance authorized to apply this modification.
The lowest level of
maintenance authorized to perform installation described by this TB is Sustainment
Maintenance.
c.
Work force and man-hour requirements for application of the modification to a single unit, end
item, or system are approximately 9 man-hours for a mechanic and helper.
d.
Modifications to be applied to or concurrently with the application of this kit.
Not applicable.
e.
Additional information deemed necessary to assist in the application of this modification.
Kit
application will be concurrent with other depot overhaul/conversion programs, as applicable.
6.
Technical publications affected/changed.
The installation will be supported by TM 9-2350-277
series technical manuals with the upcoming Change 6.
7.
Modification kits, parts, and their disposition.
a.
Kit(s)/Part(s) needed to apply this modification.
Table 1.
Kit List
KIT NO.
CAGE
KIT NOMENCLATURE
NSN
12498030
19207
Carrier, 120-MM Mortar, M1064A3 CREW II
Modification Kit
(1) Shipping data.
Not applicable.
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