ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
downward until the bottom wedges be-
(b) Replacement.
come loose.
1. Insert sequence monitor circuit card as-
4. Remove filter circuit card assembly A4
sembly A5 (61) into slot in chassis (22)
and carefully guide it into place.
(68) from chassis (22).
(b) Replacement.
2. Just before the connectors mate, check
that se uence monitor circuit card assem-
1. Insert filter circuit card assembly A4 (68)
bly A5 61) is free in its guides and its top
into slot in chassis (22) and carefully
edge is parallel to the chassis (22) top
guide it into place.
surface.
2. Just before the connectors mate, check
3. Seat sequence monitor circuit card assem-
that the filter circuit card assembly A4
bly A5 (61) by applying moderate, even
(68) is free in its guides and its top edge is
pressure at both corners. If card does not
parallel to the chassis (22) top surface.
readily seat, pull the card out and inspect
3. Seat filter circuit card assembly A4 (68)
for bent or broken connector pins.
by applying moderate, even pressure at
Ti hten four screws (60) in wedgelocks
4.
both comers. If card does not readily seat,
(59) until wedges are tight against edge of
pull the card out and inspect for bent or
slots.
broken connector pins.
5.
Mate connector A5P2 (70) with sequence
4. Ti hten four screws (64) in wedgelocks
monitor circuit card assembly A5 (61)
(65) until wedges are tight against edge of
connector and secure with two jackscrews
slots.
(69).
5. Reinstall two terminal lugs (55 and 57) to
6. Secure bottom cover (45) and gasket (46)
filter circuit card assembly A4 (68) with
to chassis (22) with 25 captive screws (43)
screws (56 and 58).
and washers (44). Torque screws to 9
6. Secure bottom cover (45) and gasket (46)
inch-pounds using procedures described
to chassis (22) with 25 captive screws (43)
and washers (44). Torque screws to 9
(6) Power inverter assembly A6. Remove and re-
inch-pounds using procedures described
place power inverter assembly A6 (26, figure 4-19, sheet
in paragraph 3-11. -
2) as follows:
(5) Sequence monitor card assembly AS. Remove
(a) Removal.
and replace sequence monitor circuit card assembly A5
(61, figure 4-19, sheet 3) as follows:
NOTE
(a) Removal.
Tag all wires before removal,
1. Loosen 25 captive screws (43) and wash-
1.
Loosen 19 captive screws (1, figure 4-19,
ers (44) securing bottom cover (45) and
sheet 1) and washers (2) securing side
gasket (46) to chassis (22); remove cover
cover (3) and gasket (4) to chassis (22,
and gasket.
2. Loosen two jackscrews (69) securing con-
gasket.
nector A5P2 (70) to sequence monitor
2.
Loosen two jackscrews (42) securing con-
circuit card assembly A5 (61) connector;
nector A6P1 (41) to power inverter as-
disconnect connectors.
sembly A6 (26) connector; disconnect
3. Loosen four screws (60) securing wedge-
connectors.
locks (59) until sequence monitor circuit
3.
Remove screw (31) and lockwasher (30)
card assembly A5 (61) is free.
securing terminal lugs (28 and 29) to
NOTE
power inverter assembly A6 (26); remove
terminal lugs.
It may be necessary to loosen the wedges
Remove screws (33) securing terminal lug
4.
if they become frozen. This can be done
(32) to power inverter assembly A6 (26);
by simply tapping the wedge screws
remove terminal lug.
downward until the bottom wedges be-
come loose.
Remove screw (35) securing terminal lug
5.
(34) to power inverter assembly A6 (26);
4. Remove sequence monitor circuit card
remove terminal lug.
assembly AS (61) from chassis (22).
4-161
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