TM 11-6625-486-14&P
SECTION II MAINTENANCE ALLOCATION CHART
FOR
AN/USM-159, AN/USM-159A, AN/USM-159B
(1)
(2)
(3)
(4)
(5)
MAINTENANCE CATEGORY
GROUP
COMPONENT/ASSEMBLY
TOOLS AND
MAINTENANCE
NUMBER
C
O
F
H
D
EQUIPMENT
FUNCTION
00
FREQUENCY METER AN/USM-159, AN/USM-159A AND
Inspect
0.5
AN/USM-159B
Install
0.5
10
01
FREQUENCY METER FR-149(*)/USK-159
Inspect
0.5
0.5
Test
1.0
1 thru 10,12
Adjust
0.5
1 thru 10,12
Replace
0.5
1 thru 10,12
Repair
2.0
1 thru 10,12
Overhaul
2.0
1 thru 12
0101
AUDIO AMPLIFIER
Test
0.2
Repair
0.2
1
0102
CRYSTAL OSCILLATOR AND MODULATOR
Test
0.2
Repair
0.2
1,3
0103
MIXER
Test
0.2
Repair
0.2
1,3
0104
POWER SUPPLY
Test
0.2
Repair
0.2
1
0105
OSCILLATOR NETWORK ASSEMBLY
Test
0.2
Repair
0.2
1,3
010501
VARIABLE FREQUENCY OSCILLATOR
Test
0.2
Repair
0.2
1,3
0106
FILM DRIVE ASSEMBLY
Test
0,2
Repair
0.2
1
0107
CAPACITOR ASSEMBLY
Test
0.2
Repair
0.2
1
010701
OSCILLATOR ASSEMBLY
Test
0.2
Repair
0.2
1
01070101
CERAMIC PLATE ASSEMBLY
Inspect
0.1
replace
0.2
10
01070102
PLATE CASE ASSEMBLY
Inspect
0.1
Repair
0.2
10
010702
SHAFT ASSEMBLY
Inspect
0.1
Repair
0.2
10
0108
REAR PANEL ASSEMBLY
Inspect
0.1
Repair
0.2
10
0109
BATTERY BOX ASSEMBLY
Inspect
0.1
Repair
0.2
10
02
ANTENNA ASSEMBLY AT-564(*)/U
Inspect
0.2
Repair
0.5
10
03
CASE AND COVER ASSEMBLY HOURS SHOWN INCLUDE
Inspect
0.2
10
SUBASSEMBLIES 0301 AND 0302
Repair
0.5
0301
COVER ASSEMBLY
Inspect
0.1
Repair
0.1
10
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