TM 11-5820-890-304
13-33. REPLACEMENT OF CR2 DIODE ON K1 RELAY. Continued
ITEM
ACTION
REMARKS
INSTALLATION Continued
h.
Relay (10)
i.
Two screws, flat
washers, and
Iockwaahers (11)
j. Heat sink
assembly (2)
13-34. REPLACEMENT OF K1
Tools:
Cross tip screwdriver
Flat tip screwdriver
Torque screwdriver
Expendable Supplies:
Cotton swabs
Solder
References:
Use soldering kit, needle nose pliers,
and flush cutting pliers. Install diode,
solder leads to tagged pins on relay (10),
trim the leads, and remove the tags.
Use cross tip screwdriver. Install and
tighten two retained screws, flat washers,
and replacement Iockwashers securing
the K1 relay (10) to the chassis.
Install retained heat sink assembly on
power supply adapter chassis (1).
RELAY.
Needle nose pliers
Soldering kit
Alcohol
Before and after soldering,
clean diode leads and relay
pins with alcohol and cot-
ton 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
sink installation.
Paragraph 13-17 for removal and installation of the heat sink assembly (8A1).
ITEM
ACTION
REMARKS
REMOVAL
a.
b.
c.
d.
e.
f.
Heat sink assembly (2)
Power supply adapter
chassis (1)
Two screws, flat
washers, and
Iockwashers (11)
Diode (9) leads
Diode (9)
Relay (10)
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.
Use cross tip screwdriver. Remove and
inspect two screws and flat washers se-
curing the K1 relay (10) to the chassis.
If damaged, obtain replacement. Discard
Iockwashers.
Tag location of the diode leads soldered
to pins on the K1 relay (10). Use solder-
ing kit. Desolder each lead from the relay.
Remove and retain the diode.
Remove and discard defective relay.
13-54
