ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
control display unit holder (9). Move re-
and display panel (31) and remove fault
lay K1 (4) away from holder far enough to
indicator DS2 (26).
permit access to wires.
7. Remove six screws (38) and washers (39)
securing control display unit holder (9) to
3. Tag and unsolder wires connected to re-
display and control panel (31). Remove
lay K1 (4); remove relay.
control and display panel (31).
4. Unsolder and remove diode CR1 (5).
(b) Replacement.
(b) Replacement.
1.
Prepare and install plastic tubing on
diode. Solder diode CR1 leads to relay
terminals observing polarity and note of
Isopropyl alcohol is flammable and gives
2.
Solder tagged wires to terminals of relay
off harmful vapors. Use only in well-ven-
K1 (4).
tilated area away from open flames and
Install relay K1 (4) and secure to control
3.
sparks. Avoid prolonged or repeated inha-
display unit holder (9) with two screws
lation of vapors.
(l), lockwashers (2) and washers (3). To
1. Clean shoulder of indicator DS2 (26)
ensure proper orientation blue bead must
where it contacts display and control
be located as shown in figure 4-17.
panel (31) using isopropyl alcohol and
4.
Inspect gasket (32). Replace if cracked,
clean lint-free cloth. Repeat at least three
torn loose, or excessively compressed.
times using clean cloth each time. When
clean, wipe dry using lint-free material.
Position control and display panel (31)
5.
against control and dis la unit cover
2. Apply adhesive (MIL-A-46146, Type I)
0.010- to 0.030-inch thick on shoulder
(30) securing control and display panel
contact surface. Install in control and
(31) to control and display unit cover (12)
display panel (31) within 5 minutes after
5 inch-pounds using procedures described
applying adhesive.
3. Install nut (28) and washer (27) that se-
(3) Control and display panel. Remove and re-
cure indicator DS2 (26) to control and
place control and display panel (31, figure 4-17) as
display panel (31) and tighten nut (28)
follows:
sufficiently to hold but not enough to
reduce adhesive thickness to less than
(a) Removal.
0.010 inch.
1. Remove 16 screws (29) and washers (30)
4. Cure adhesive for 72 hours minimum.
securing control and display panel (31) to
5. Secure control display unit holder (9) to
control and display unit cover (12). Sepa-
control and display panel (31) with six
rate control and display panel (31) and
screws (38) and washers (39).
control and display unit cover (12) to
permit access to front panel mechanical
6. Prepare and solder tagged wires to indica-
and electrical connections.
tor DS2 (26).
2. Remove eight screws (24) securing bezel
7. Connect connector (21) to control and
(25) to control and display panel (13).
display panel (31) by engaging and turn-
ning two jackscrews (20).
3. Remove four screws (23) securing display
unit DS1 (37) to control and display panel
8. Secure indicator DS1 (37) to control and
(31).
display panel (31) with eight screws (23).
4. Disconnect connector (21) from control
9.
Secure bezel (25) to control and display
and display panel (31 ) by turning two
panel (31) with four screws (24).
jackscrews (20).
10. Inspect gasket (32). Replace if cracked,
5. Tag and unsolder wires connected to fault
torn, loose, or excessively compressed.
indicator DS2 (26).
11. Position control and display panel (31)
against control and dis la unit cover
6.
Remove nut (28) and washers (27) secur-
ing fault indicator DS2 (26) to control
(12). Torque 16 screws (29) and washers
4-143
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