4-68. REPLACEMENT OF DIODE CR6.
Cross tip screwdriver
Flat tip screwdriver
Sealing compound, grade H
Paragraph 4-62 for removal and installation of circuit breaker CB1.
a. Mounting adapter
Set on work surface with left side toward
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 and
retain relay K1.
d. Diode CR6 (17)
e. Diode CR6 (17)
f. Relay K1 (15)
Note polarity. Using soldering kit, desolder
defective diode CR6 (17) from leads X1
and X2 of relay K1 (15). Remove and
discard defective diode CR6.
Note polarity. Using soldering kit, solder
replacement diode CR6 (17) to leads X1
and X2 of retained relay K1 (15).
Position retained relay K1 (15) on power
control chassis (8). Using cross tip screw-
driver, install two retained screws (29),
Iockwasher, and terminal lugs securing
relay K1 (15) to power control chassis (8).
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.
See figure 4-14. This was
removed in step b.
Refer to paragraph 4-62 for