TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Table 5-2. Troubleshooting Procedures - Continued
Trouble
Probable cause
Corrective action
4. (Cont)
g. (Cont)
m. If meter indicates more than 100,000
ohms, with mode switch in SE-
CURE, connect meter leads to S3,
terminals 3-4 and 3-3, and then
terminals 3-4 and 3-1.
n.
If meter indicates more than 100,000
ohms, replace mode switch S3.
(1) To remove mode switch, remove
large hex nut that secures
switch mounting bracket to in-
side of CU door. Remove
switch and mounting bracket
together. Be careful not to
lose switch arm because it is
not secured to switch shaft.
Remove spacer and lock from
door so no items will be lost.
Remove small hex nut and lock
washer that secures mounting
bracket and switch stop to
switch shaft. Remove mount-
ing bracket and switch stop.
Note that mode switch is a
three deck switch. Tag wires
and use a soldering iron of 50
watts maximum to remove
them from switch terminals.
(2) To install new mode switch, use a
soldering iron of 50 watts max-
imum to connect wires to
switch terminals. Slip mount-
ing bracket and switch stop
over switch shaft. Ensure that
notch in mounting bracket fits
over tab on switch body, and
that the tang on switch stop en-
gages notch in mounting brac-
ket. Secure bracket and stop
to switch with lock washer and
small hex nut. Insert lock
through hole in CU door; slip
spacer over lock. Slip switch
arm over switch shaft. Ensure
that arm is aligned with tang
5-79
