ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
3. Check electrical bonding between 3J1, 3J2,
2. Remove screw (120), washer (121), and
3J3, 3J5. and J6 mounting nuts and chassis
shoulder washer (122) securing terminal
with an ohmmeter. Resistance should be
lug (123) to chassis (8).
5 milliohms maximum.
3. Unsolder capacitor terminal lug (123);
remove capacitor.
(10) Output filter circuit card assembly A9 repair.
Repair of the output circuit card assembly A9 (130,
(z) Capacitors C1, C2, and C3 replacement.
1.
Clean old adhesive from area on chassis
components. See figure 4-21 for a parts location dia-
(8) where capacitor is to be installed.
gram and repair output filter circuit card assembly A9
using standard shop practices.
2.
Prepare and solder capacitor and tagged
wires to standoff and terminal lug.
(11) Wire harness repair. Repair of the wire har-
ness consists of replacing broken or burned wires. Refer
3.
Secure terminal lug (123) to chassis (8)
to wires listed in table 4-4 and repair wiring using
with screw (120), washer (121), and shoul-
standard shop practices.
der washer (122).
Bond capacitor to wail of chassis (8) using
4.
urethane adhesive (724-14C).
a. General. Cable repair consists of connector pin
replacement, terminal lug replacement, and repair of
(aa) Capacitor C5 and thermostatic switch S 2
broken wires by substituting wires. Connectors are
removal.
repaired by pin replacement.
1. Tag and unsolder wires connected to capaci-
tor C5 (126.2) and thermostatic switch S2
(1) Connector pins are replaced from the connec-
(126.1)0. Remove capacitor.
tor rear. Remove the appropriate covers and panels to
obtain access to chassis-mounted connectors. The back-
2. Remove thermostatic switch.
shell must be disassembled for cable connectors.
(ab) Capacitor C5 and thermostatic switch S 2
(2) After access is obtained, remove the defective
replacement.
pin and cut off the wire. Prepare the wire and crimp a
1. Clean old adhesive from area on chassis (8)
new pin on the wire. If the newly prepared wire is too
where thermostatic switch is to be installed.
short, there are usually spare wires in cables. Insert the
2. Bond thermostatic switch to wall of chassis
new pin into the connector and reassemble the equip-
(8) using epoxy adhesive (163-4LVFF).
ment.
3. prepare and solder capacitor and tagged
(3) Procedures for backshell disasssembly/assem-
wires to thermostatic switch. Place insula-
bly, pin removal and replacement, crimping tool opera-
tion sleeving (MIL-1-22129) on capacitor
tion, and lug replacement are given below.
leads.
4. Bond capacitor to wall of chassis (8) using
urethane adhesive (724-14C).
(ac) Connectors 3J1, 3J2, 3J3, 3J5, and J6.
1. When replacing connectors 3J1, 3J2. and
Use a strap wrench (figure 4-22) to loosen
3J3, torque mounting nut 90 to 95 inch-
or tighten backshell components which
pounds.
do not have wrench flats. Use of pliers,
pipe wrench, etc., may damage the con-
2. When replacing connector 3J5, torque
nectors.
mounting nut 85 to 90 inch-pounds.
Change 5
4-168
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