ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
3. Secure fault indicator DS2 (46) with nut
(57) and lockwasher (58). Tighten nut
sufficiently to hold but not enough to
reduce adhesive thickness to less than
0,010 inch.
Isopropyl alcohol is flammable and gives
off harmful vapors. Use only in well-ven-
4. Cure adhesive for 72 hours minimum.
tilated area away from open flames and
sparks. Avoid prolonged or repeated inha-
5. Prepare and solder tagged wires and dio-
lation of vapors.
des CR9 (47, figure 4-20, sheet 4) and
CR10 (48) to fault indicator DS2 (46,
1. Clean diode CR2 (40) and heat sink
figure 4-20, sheet 3)
mounting surfaces using isopropyl alco-
hol. Use lint-free cloth to apply alcohol
(m) Relay K2 removal.
and to wipe parts.
1. Remove two screws (55, figure 4-20, sheet
2. Apply sealing compound (MIL-S-22473,
3) and washers (56) securing relay K2 (54)
Grade C) to diode CR2 (40) threads.
to chassis (8). Pull relay K2 far enough
out of chassis to gain access to wires.
3. Install diode CR2 (40) in heat sink and
tighten with socket wrench.
2. Tag and unsolder wires connected to re-
lay K2 (54); remove relay K2.
4. Secure terminal lug (43) to diode with nut
(41) and washer (42) .
(n) Relay K2 replacement.
(s) Rectifier CR3 removal.
L Prepare and solder tagged wires to relay
K3.
1. Remove nut (69, figure 4-20, sheet 3),
washer (68), and screw (64) securing two
2. Secure relay K2 (54) to chassis (8) with
terminal lugs (65 and 66) to rectifier CR3
two screws (55) and washers (56).
(67); remove terminal lug.
(o) Elasped time indicator Ml removal.
2. Tag and unsolder wires connected to rec-
tifier CR3 (67).
L Tag and unsolder wires connected to
elapsed time indicator M 1 (62, figure
3. Usin socket wrench, remove rectifier
CR3 (67) from heat sink.
2. Remove two screws (60) and washers (61)
(t) Rectifier CR3 replacement.
securing elapsed time indicator M 1 (62)
and gasket (63) to chassis (8); remove
elapsed time indicator and gasket.
(p) Elapsed time indicator Ml replacement.
1.
Inspect gasket (63) for damage and re-
Isopropyl alcohol is flammable and gives
place if required.
off harmful vapors. Use only in well venti-
2.
Secure elapsed time indicator Ml (62)
lated area away from open flames and
and gasket (63) to chassis (8) with two
sparks. Avoid prolonged or repeated inha-
screws (60) and washers (61).
lation of vapors.
1. Clean rectifier CR3 (67) and heat sink
3.
Prepare and solder tag ed wires to
mounting surfaces using isopropyl alco-
elapsed time indicator Ml (62).
hol. Using lint-free cloth to apply alcohol
(q) Diode CR2 removal.
and to wipe parts.
1.
Remove nut (41, figure 4-20, sheet 3) and
2. Apply sealing compound (MIL-S-22473,
washer (42) securing terminal lug (43) to
Grade C) to rectifier CR3 (67) threads.
diode CR2 (40).
3. Install rectifier CR3 (67) in heat sink and
2.
Using socket wrench, remove diode CR2
tighten with socket wrench.
(40) from heat sink,
4. Prepare and solder tagged wires to recti-
fier CR3 (67).
(r) Diode CR2 replacement.
4-166
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