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TM 11-5820-890-30-5
4-64. REPLACEMENT
Tools:
OF RELAY K1.
Cross tip screwdriver
Torque screwdriver
Flat tip screwdriver
Soldering kit
Expendable Supplies:
Sealing compound, grade H
Solder
Cotton swabs
Alcohol
References:
Paragraph 4-62 for removal and installation of circuit breaker CB1.
ITEM
ACTION
REMARKS
REMOVAL
a. Mounting adapter
Set on work surface with left side
toward you.
b. Side access cover (16)
Remove and retain.
Refer to paragraph 4-62
for removal procedures.
c. Relay K1 (15)
Using cross tip screwdriver, remove and
See figure 4-19.
retain two screws (16), Iockwasher, and
terminal lugs securing relay K1 (15) to
power control chassis (8). Remove relay
K1 to allow access to wires and diode CR6.
Note polarity. Using soldering kit, desolder,
remove, and retain diode CR6 (17) from
defective relay K1 (15) terminals X1 and X2.
Remove insulation sleeving as required.
Using soldering kit, tag and desolder wires
from leads of relay K1 (15). Discard relay K1.
d. Diode CR6 (17)
e. Wires
INSTALLATION
f. Wires
g. Diode CR6 (17)
h. Relay K1 (15)
Side access
i.
cover (16)
Using soldering kit, solder tagged wires
to leads of replacement relay K1 (15).
Remove wire tags. Replace insulation
sleeving as required.
Note polarity. Using soldering kit, solder
retained diode CR6 (17) to leads X1
and X2 of relay K1 (15).
Position replacement relay K1 (15) on
power control chassis (8). Using cross
tip screwdriver, install two retained
screws (16), Iockwasher, and terminal
lugs securing relay K1 to power control
chassis (8).
Before and after soldering,
clean wires and leads with
alcohol and cotton swabs.
Before and after soldering,
clean solder joints with
alcohol and cotton swabs.
Apply one drop of grade H
sealing compound to
threads of two retained
screws before installation.
Install.
See figure 4-14. This was
removed in step b.
Refer to paragraph 4-62 for
installation procedures.
4-178
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