TM 11-5820-890-30-4
13-34. REPLACEMENT OF K1 RELAY. Continued
ITEM
ACTION
REMARKS
INSTALLATION Continued
g. Relay (10)
Obtain replacement relay and two
Iockwashers.
h.
Diode (9) leads
Use soldering kit and needle nose pliers.
Install the retained diode, solder leads to
tagged pins on relay (10), and remove
the tags.
i.
Two screws, flat
Use cross tip screwdriver. Install and
washers, and
tighten two retained screws, flat washers,
Iockwashers (11)
and replacement Iockwashers securing
the K1 relay (10) to the chassis.
j. Heat sink
Install retained heat sink assembly on
assembly (2)
power supply adapter chassis (1).
13-35. REPLACEMENT OF CB1 CIRCUIT BREAKER.
Tools:
Flat tip screwdriver
Needle nose pliers
Torque screwdriver
Adjustable wrench
Torque wrench
Soldering kit
Expendable Supplies:
Silicone compound
Solder
Cotton swabs
Alcohol
References:
Before and after soldering,
clean diode leads and relay
pins with alcohol and
cotton swabs. Ensure that
cathode lead is connected
to pin X1 on the relay.
Position K1 relay with pins
for wires closest to CB1
circuit breaker.
Refer to
for heat
Paragraph 13-17 for removal and installation of the heat sink assembly (8A1).
paragraph 13-17
sink installation.
ITEM
ACTION
REMARKS
REMOVAL
a.
Heat sink assembly (2)
b.
Power supply adapter
chassis (1)
c.
Circuit breaker (12)
wires
d. Hex nut, switch plate,
and lock ring
e.
Circuit breaker (12)
Remove and retain heat sink assembly
Refer to paragraph 13-17
from power supply adapter chassis (1).
for heat sink removal.
See figure 13-2.
Set upside down on work surface with
front toward you. See figure 13-6.
Tag location of all wires soldered to CB1
circuit breaker terminals. Use soldering kit.
Desolder each wire from the circuit breaker.
Use adjustable wrench. Note orientation
of circuit breaker. Remove and discard
hex nut, switch plate, and lock ring
securing circuit breaker to chassis.
Remove and discard defective circuit
breaker.
13-55
