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Page Title: Section II. ORGANIZATIONAL AND FIELD MAINTENANCE (THIRD ECHELON)
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Figure 9. Da Form 11-23, pages 2 and 3
Up
TM-11-5820-467-15 Antenna Group AN/GRA-50 Manual
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Figure 10. Cross section of rf cable and connector.

Section II. ORGANIZATIONAL AND FIELD MAINTENANCE (THIRD ECHELON)
15. Scope of Organizational  Maintenance
(2) Cleaning cloth, lint-free.
(3) Sandpaper No. 000.
c. Test Equipment. M u l t i m e t e r
AN/
The following is a list of maintenance
URM- 105.
duties performed by organizational main-
tenance personnel for the antenna assem-
b l y . The scope of these instructions has
17. Organizational Preventive Maintenance
b e e n determined by the available tools,
DA Form 11-238 (fig. 8 and 9) is a pre-
m a t e r i a l s , test equipment, spare parts,
ventive maintenance checklist to be used
and the MOS of the repairman.
by organizational maintenance personnel.
a. Preventive maintenance (para 17).
Items not applicable to the equipment are
b. Troubleshooting (para 18).
lined out in the figures. Instructions for
c. Replacement of parts (para 19).
the use of the form appear on the form.
18. Troubleshooting
16. Tools, Materials, and Test Equipment
Required
a. The troubleshooting chart is for use
o f second through fifth echelon mainte-
A list of parts normally stocked for or-
nance personnel. Upon noting a defect in
ganizational maintenance is contained in
e i t h e r transmission or reception, shut
T M 11-5820-467-25P. The tools, mate-
d o w n the power at the transmitter/re-
rials, and test equipment required for or-
c e i v e r , disconnect the rf cable from the
ganizational maintenance are listed below:
t r a n s m i t t e r / r e c e i v e r  antenna  connector,
a. Tools. Tool Equipment TE-41.
a n d perform the appropriate procedure
b. Materials.
listed in the chart below.
(1) Cleaning compound (Federal stock
No.  7930-395-9542).
b. Chart.
19. Repair of Rf Cable (Third Echelon)
(1) Tool Equipment TE-113.
( 2 ) Multimeter TS-352/U.
The only item of the antenna assembly
b. Installation of Connector on End of
that can be readily repaired is the rf cable
Rf Cable.
(b and c below).
(1) Remove three-quarters of an inch
a. Tools and Test Equipment Required.
of the rf cable outer jacket.

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