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SECTION III. TOOL AND TEST EQUIPMENT REQUIREMENTS-CONTINUED
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TM-9-1270-212-14-P Fire Control Subsystem Helmet Directed XM128 P/N 2277716-00 NSN 1270-00-122-9449 Manual
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TM 9-1270-212-14&P
Section IV. REMARKS
Nomenclature of End Item or Component: Fire Control Subsystem, Helmet-Directed, XM128/XMl36
Remarks
Remarks
Ref code
Ref code
H
Align refers to the subsystem boresighting at the
BIT and operational checks are extent of testing at
A
direct support maintenance level.
the organizational maintenance level.
After repair or replacement of the EIA, adjustment
B
Align refers to boresighting of the helmet sight
I
of its AZ and EL potentiometers may be required
assembly which will require cooperative effort of
two individuals (either aircrew and maintenance or
by the organizational maintenance personnel to
reestablish boresighting.
two maintenance personnel).
c
Replacement of lamp assembly is extent of
J
Amplifier card Al3 may require adjustment at the
direct support maintenance level.
organizational maintenance repair.
Limited testing can be performed at the direct
D
Field repair of the arm assemblies is limited to
K
support maintenance level, utilizing available test
replacement of screw lock assemblies.
equipment.
E
Alignment of linkage assemblies by direct support
Adjustment of the bit magnet bracket can be
L
maintenance personnel is required prior to
performed by direct support maintenance
boresighting the subsystem.
personnel utilizing the fire control subsystem test.
set.
F
Adjustment of arm assembly resolver (Bl) by
direct support maintenance personnel may be
M Circuit card assembly A14 in the EIA used in HSS
required during boresighting.
XM136 is authorized field repair.
The extension cable will be replaced at the direct
G
Use of shim 2202214-00 and wedge 2202213-00
N
support maintenance level because its removal
are optional. These items must be used as a set.
affects the linkage alignment.

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