TM 11-5820-921-40-1
3-30. REMOVAL OF
HIGH VOLTAGE MODULE ASSEMBLY 1A13
Refer to Detail B of figure 3-2. Use an 8-inch flat blade screwdriver to loosen the three captive
1.
retaining screws that secure the high voltage module assembly to the case assembly.
Grasp the high voltage module assembly firmly and remove it from the case assembly by
2.
rocking it gently back and forth while lifting straight up.
3-31. REMOVAL OF
CARD CAGE
ASSEMBLY P/N 755017A4205
Refer to Detail C of figure 3-2. Use a No. 1 Phillips head screwdriver and a 4-inch adjustable
1.
wrench or a No. 6 nut driver to loosen the No. 6-32 x .5 screw, No. 6 split ring lock washer, and
No. 6 nut in two places that holds the component bracket assembly (for L1, K1, and C1)
P/N 775017A4064 to the card cage assembly. Use a No. 1 Phillips head screwdriver to loosen the
four No. 6 screws that secure the component bracket (P/N 775017A4064) to Case Assembly
1A14. Do not remove these four screws, just loosen them enough to allow removal of the card
cage assembly.
2. Use a No. 1 Phillips screwdriver to loosen and remove the four No. 6 screws and No. 6 split ring
lockwashers that secure the card cage assembly to the case assembly. Gently pull the component
bracket (for L1, K1, and C1) toward the front (i.e., the side with the meter and connectors) of
the case assembly and lift the card cage assembly straight up out of the case assembly.
3-32. ACCESS AND/OR REMOVAL OF
HARMONIC FILTER ASSEMBLY 1A15
Refer to Detail C of figure 3-2. Use a No. 1 Phillips head screwdriver to loosen the two 2-56 x .75
1.
LG screws that secure connector 1A14J8 to plate nut assembly P/N 755017A4034. Remove
plate nut assembly and screws, then gently pull connector 1A14J8 and its cable harness away
from the side of Case Assembly 1A14. Use a pair of diagonal cutters to cut the tie wrap holding
the cable harness to cable clamp (P/N TC-105A) on the inner wall of the case assembly, taking
care not to damage any wires in the cable harness.
Use Extraction Tool CET-C6B to punch out the coaxial cable part of connector 1A14J8
2.
(labeled A2).
Use a No. 1 Pillips head screwdriver to loosen and remove the two 2-56 x 5/16 LG screws that
3.
secure connector 1A14J7 to the standoffs P/N 775017A4017 attached to Case Assembly 1A14.
4.
Use a No. Phillips head screwdriver to loosen and remove the three 4-40x .25 LG Phillips head
screws, three No. 4 split ring washers, and three No. 4 flat washers that secure the harmonic filter
assembly to the case assembly.
Gently lift the harmonic filter assembly and its cable harness up and away from the case assembly.
5.
Use Extraction Tool CET-C6B to punch out the coaxial connector labeled A3 on connector
1A14J7.
3-33. ACCESS AND/OR REMOVAL OF
COMPONENT BRACKET P/N 755017A4064 (FOR L1, K1,
AND C1)
Refer to Detail C of figure 3-2. Use a No. 1 Phillips head screwdriver and a 4-inch adjustable
1.
wrench to loosen and remove the 8-32 x 7/16 LG Phillips head screw, No. 8 split ring washer, and
No. 8-32 Hex Nut that secure the minus (-) lead of capacitor C1 to the component bracket.
2.
Use a No. 1 Phillips head screwdriver to loosen and remove the No. 8-32 x 5/16 and No. 8 split-
ring lock washer that secure the plug (+) lead from capacitor C1 to pin 1 of relay K1. Then use
No. 1 Phillips head screwdriver to loosen and remove the two No. 6-32 x 5/16 LG Phillips head