TM 11-5820-921-40-1
3-148. Prior to performing the following operations, note and sketch orientation of capacitor connections.
1.
Refer to figure 3-63. Use a short No. 1 Phillips screwdriver and a four-inch adjustable wrench to
loosen and remove the two component bracket retaining screws, lockwashers, and hex nuts that
secure the component bracket to the card cage assembly, after the pwb's have been removed.
2.
Remove card cage assembly as described in paragraph 3-31.
3.
Carefully, lift the component bracket and wiring harness up high enough for accessibility.
4.
Use a No. 1 Phillips screwdriver to loosen and remove the two No. 10-32 x 7/16 screws and No. 10
lockwashers that secure the two dc power cable assemblies to the 1A14C1 and C2 capacitors.
Remove the dc power cable assemblies from the capacitors.
Unsolder capacitor 1A14C2 from the two No. 10 terminal lugs and resolder the new 1A14C2
5.
capacitor to the terminal lugs.
6.
Use a No. 1 Phillips head screwdriver to loosen the capacitor retaining screw on the capacitor clamp.
Remove the 1A14C1 capacitor.
7.
Reassemble the new 1A14C1 and C2 capacitors in the reverse order of disassembly.
3-150. No special cleaning procedures apply to replacement components; however make sure that adjoining
areas on pcb/pwb assembly tracks, connectors and cable wiring are not shorted by excess solder or solder
globules.
3-152. Replacement and reassembly of detailed parts or subassemblies are described in paragraphs 3-139
through 3-150. Tighten the cover assembly captive retaining screws with a 3-inch flat-bladed screwdriver.
Reconnect the connectors removed, as applicable. For specific reassembly and reinstallation instructions
that cover non-obvious steps refer to the following.
1.
General - Do not overtorque assembly hardware, as damage to threads and bushings may result.
Power tubes 1A14V1 and V2 contain Beryllium Oxide Ceramics. Never
alter, disassemble, grind, lap, fire, chemically clean, or perform any other
operation on any ceramic parts of the power tubes which could possibly
generate dust or fumes. BREATHING THE DUST OR FUMES CAN
KILL.
2.
If a power tube is found bad and replaced, refer to separate instructions for disposal.
for applicable operational
3-154. Refer to chapter 3 of the Systems Manual TM 11-5820-924-12
checkout.
