Engine Order Telegraph (EOT)

TM 55-1915-200-10

the Pilothouse Console (PHC) and at the Engine Room

(3) Stop ramp movement by moving control

Console (ERC).

valve (8, Sheet 2 of 4) to center, NEUTRAL.

2-5.19.1. Pilothouse Console (PHC). (FIGURE 2-140)

(4) Attach ladder (3, FIGURE 2-163) to port

a. Rotate the EOT switch (9, FIGURE 2-164) so

edge of mezzanine deck.

that the EOT switch points at the ordered position.

(5) Engage and tighten two port ratchet dogs

NOTE

(1).

A bell will ring at the ERC and PHC

(6) Engage and tighten two starboard ratchet

when PHC EOT and ERC EOT switch

dogs (1).

positions do not match.

(7) Remove and stow ladder (3).

b. Observe the indicator lamps on the EOT panel.

f. Perform post-operation check of controls.

NOTE

(1) Inspect winch and ramp assemblies for

When the ERC operator places the

damage.

ERC EOT switch in the same

(2) Check hydraulic fluid level (7, FIGURE 2-

position as the PHC EOT switch, the

161, Sheet 1 of 4).

associated lamp will light on the PHC

(3) Stop stern ramp hydraulic pump as

EOT panel.

follows:

2-5.19.2. Engine Room Console (ERC). (FIGURE 2-

(a) Depress STOP button (4, FIGURE

106)

2-162, Sheet 1 of 2).

NOTE

(b) Turn off circuit breaker No.

A bell will ring to alert the ERC

(FIGURE 2-101, Sheet 17 of 21) in power panel P3 in

operator to a new EOT command.

Emergency Generator room, main deck aft.

a. Observe the EOT panel for a new command

NOTE

indicator light.

In the event stern ramp winch

b. Place the ERC EOT switch (9, FIGURE 2-164)

becomes inoperable, the auxiliary

in the new command position. Bell will cease ringing.

spool of the stern anchor winch may

2-5.20. Sound Powered Telephone System The sound

be used to raise and lower stern

powered telephone system includes the following:

ramp.

Refer to Stern Ramp

a. 19 Station Sound Powered Telephone (FIGURE

Emergency Procedures in Section IV.

2-165).

2-5.19. Engine Order Telegraph (EOT). When an order

b. Sound Powered Telephone (FIGURE 2-166).

is issued to change either engine speed or direction

c. Watertight Telephone (FIGURE 2-167).

(forward or reverse), the following procedures occur at

2-471