TM 55-6670-200-14&P
DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
Section I. DISASSEMBLY
4-1. General.
f. Remove disc, dial, drive assembly (3), and
insulator.
Instructions for disassembly of the kit are in se-
quence of disassembly. However, disassembly
4-4. Helipots.
should be accomplished only enough to replace
a. Remove helipot locknuts on panel (5, 6,
any defective part, which is standard procedure
and 7, fig. 4-14).
for electronic equipment.
b. Disengage helipots and pull out until re-
strained by cable harness. Unsolder three leads
a. Remove screws located at lower end of
from helipot and label with tags marked TOP
panel (1, fig. 4-14 or 1A, fig. 4-15).
TERMINAL, MID TERMINAL and BOTTOM TER-
MINAL (figs. 4-2 or 4-3).
2A, fig. 4-15).
Remove roundhead screws on bottom of
c.
Remove flathead screws securing oscillator-am-
case assembly (fig. C-3).
plifier assembly to cover assembly and remove
oscillator-amplifier assembly.
d. Disconnect cable assemblies (19 and 21)
and lift indicator assembly from kit.
4-6. Milliammeter.
Remove
oscillator-amplifier
assembly
a. Remove knobs (3, 3A, 4, 5, 6, and 7, figs.
4-14 or 4-15).
b. Remove screws and nuts holding milli-
b. Remove nuts holding BATTERY VOLTA-
ammeter to cover assembly and remove milli-
GE switch (3, figs. 1-2 or 1-3) and CELL BAL-
ANCE switch (1).
a. Remove screws on bottom of carrying
case that attach power supply bracket to case.
d. Remove cover from board and switch as-
sembly (1, fig. 4-1). Remove screws holding
Disconnect wires where applicable.
b.
spacers (2), and remove entire assembly.
c. Remove front of cover assembly to expose
NOTE
tubes.
Defective parts of the board and switch
NOTE
assembly (1) may be replaced without
Defective tubes are to be replaced from
removing the entire assembly. However,
spare tube kit.
if parts of the disc, dial and drive as-
sembly (3) are defective, remove the
d. Remove screws holding cover and com-
board and switch assembly (l).
ponent assembly to case assembly.
NOTE
Remove any defective part.
e.
The board and switch assembly (1) in-
cludes harness assembly (4) and switch
(5).
e.
Remove box (6) and bearing assembly.
