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TM 11-5820-890-30-5
4-69. REPLACEMENT OF TERMINAL BLOCK TB2.
Tools:
Cross tip screwdriver
Flat tip screwdriver
Torque screwdriver
Soldering kit
Expendable Supplies:
Cotton swabs
Alcohol
Solder
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. Terminal block TB2 (19)
Using cross tip screwdriver, remove and
retain two screws (18), Iockwashers, flat
washers, and insulating washers securing
defective terminal block TB2 (19) to power
control chassis (8). Remove terminal block
TB2 to allow for resoldering.
d. Wires
INSTALLATION
e. Wires
Tag wires of terminal block TB2. Using
flat tip screwdriver, remove and retain
four screws securing terminal lugs with
tagged wires to terminal block TB2 (19).
Using soldering kit, tag and desolder wires
from defective terminal block TB2 (19).
Discard defective terminal block TB2.
Using soldering kit, solder tagged wires
to correct terminals of terminal block TB2
(19). Using flat tip screwdriver, install
four retained screws securing terminal
lugs with tagged wires to terminal block
TB2 (19). Remove wire tags.
f. Terminal block TB2 (19)
Using cross tip screwdriver, install two
retained screws (18), Iockwashers, flat
washers, and insulating washers securing
replacement terminal block TB2 (19) to
power control chassis (8).
g. Side access
Install.
cover (16)
See figure 4-20.
See figure 4-19.
See figure 4-20. These
were removed in step d.
Before and after soldering,
clean wires and terminals
with alcohol and cotton
swabs.
These were removed in
step c.
See figure 4-14. This was
removed in step b.
Refer to paragraph 4-62 for
installation procedures.
4-185
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