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TM 11-5820-890-30-5
3-33. REPLACEMENT OF RELAYS.
Tools:
Soldering kit
Cross tip screwdriver, #0 point
3/16-inch nutdriver
Adjustable
Expendable supplies:
Alcohol
References:
Paragraph
wrench
Cotton swabs
Solder
3-25 for removal and installation of test adapter from maintenance group lid.
Figure 3-12 for illustration of relays.
ITEM
ACTION
REMARKS
REMOVAL
a. Wires
b. Two screws (71), flat
washers (69), and
hex nuts (68)
c. Relay (70)
INSTALLATION
d. Relay (70)
e. Two screws (71), flat
washers (69), and
hex nuts (68)
f. Wires
Note positions of all wires soldered to
See figure 3-12
relay (70). Using soldering kit, desolder
(sheet 2, detail C).
all wires. Using adjustable wrench, dis-
connect RF cables from relay.
Using cross tip screwdriver and 3/16-inch
See figure 3-12
nutdriver, remove and retain two screws,
(sheet 3, detail C).
flat washers, and hex nuts securing relay
(70) to mounting bracket (72).
Remove and discard defective relay from
mounting bracket.
Install replacement relay in correct posi-
tion on mounting bracket (72) with two
retained screws (71) inserted through
holes in mounting bracket and relay case.
Using cross tip screwdriver and 3/16-inch
These were removed in
nutdriver, install and tighten two retained
step b.
hex nuts and flat washers on two screws
securing relay (70) to mounting bracket (72).
Using soldering kit, solder all wires to cor-
Before and after soldering,
rect positions on relay (70). Using adjust-
clean solder joints with
able wrench, connect RF cables to correct
cotton swabs and alcohol.
connectors on relay.
3-103
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