ARMY TM 9-6115-60412
NAVY NAVFAC P-8-633-12
Install replacement lamp holder (27) in panel and secure with attaching hardware.
Connect wiring as tagged, using shrink tubing as needed Remove and discard tags.
Install replacement lamp (25) and Install lens (26).
Close RCM panel and secure by locking three oval studs at the top of the panel.
ANNUNCIATOR TEST, ALARM SILENCE, and EMERGENCY SHUTDOWN Pushbutton Switches. S16R.
S15R. and S7R (30, 31, and 32. Figure 5-2). Switches S16R, S15R, and S7R are momentary contact switches that
are used respectively to test the annunciator alarm system, to silence alarm horn LS1R, and initiate an emergency
shutdown condition from the RCM.
Shut down the generator set. See Figure 2-23.
Open the RCM panel by unlocking three oval studs across the top of the panel.
Tag and disconnect wiring to switch under test (30, 31, or 32).
Set multimeter to RX1 scale and connect across switch terminals at rear without pressing switch
button (OFF position) Multimeter reading should be infinite ohms.
Press switch button from front RCM panel with multimeter leads still connected at rear of switch.
Multimeter should now read zero ohms.
Replace switch (30, 31, or 32) if it fails testing as described above.
(a) Tag and disconnect wiring from switch (30, 31, or 32) terminals.
(b) Remove switch mounting hardware from front RCM panel and remove switch (30, 31, or 32).
(c) Position switch (30, 31, or 32) through rear RCM panel and secure with mounting hardware at front.
(d) Connect wiring as tagged Remove and discard tags.
(e) Close RCM panel and secure by locking three oval studs across the top of the panel.
ALARM HORN LS1R. LS1R (12, Figure 5-1). provides an audible alarm at the RCM site should a fault
condition occur at the main generator set.
With the generator set operating and the RCM energized, press the ANNUNCIATOR TEST switch
S15R. LOW OIL PRESSURE lamp DS2R, HIGH COOLANT TEMP lamp DS3R, and FAULT lamp
DS103R should light and ALARM HORN LS1R should sound.
Press ALARM SILENCE switch S16R. ALARM HORN LS1 should stop.
If the fault indicators light as described in step (a), above, but alarm horn LS1 does not sound, shut
down the generator set or deenergize the RCM by setting LOCAL REMOTE switch S2 in the
generator control room to LOCAL.
Open the RCM panel by unlocking three oval studs across top of the panel to gain access to ALARM
HORN LS1 (12, Figure 5-1).
Remove cover grill from alarm horn LS1 R by removing cover locking screw at side. Tag and
disconnect wiring from the horn and remove from electrical box (13) by removing attaching
Set a multimeter to RX100 scale and check horn coil for continuity by measuring resistance. Coil
resistance reading should be approximately 24 ohms. Replace the horn if it does not meet the