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 TM 55-1925-204-12
1. Starter push switch
4. Throttle
2. Water temperature gage
5. Panel light switch
3. Oil pressure gage
6. Ammeter
Figure 2-4. Auxiliary set engine controls and instruments.
from generator to storage batteries. It should always
(2) Starter push switch (1). This switch operates
read on the charging side when the engine is running.
the starter motor of diesel engine on auxiliary set. It is
located at top left of engine control panel. Push to start.
g. Fire and Salvage Pump Clutch. This pump is
(3) Water temperature gage (2). This gage is
driven with a friction clutch from end of auxiliary set
located on engine control panel.
It indicates the
generator rotor shaft. The clutch control lever is located
temperature of the water circulating through the engine
o
on left side of the auxiliary set. When auxiliary set is in
block. The normal reading of this gage is 165 F.
o
operation, moving clutch control lever forward engages
Temperature readings in excess of 180 F. ,or less than
o
clutch, and moving lever aft disengages clutch to stop
155 F. should be investigated.
the fire and salvage pump.
(4) Oil pressure gage (3). Located on engine
control panel, this gage indicates the pressure at which
h. Fire and Salvage Pump Priming Pump Clutch.
oil is being delivered to all engine lubrication points.
This priming pump is operated by a friction clutch driven
Normal reading of this gage when engine is warm is
with a V-belt arrangement from fire and salvage pump
between 30 and 40 psi.
clutch. The clutch control handle is located above the
(5) Throttle (4). Located on lower right corner of
fire and salvage pump, and pulling clutch handle aft
the engine control panel, the throttle controls engine
engages the clutch. Pushing clutch handle forward
speed and provides a means of stopping the engine.
disengages the clutch and stops the priming pump.
Turning throttle clockwise from STOP to RUN opens
metering plungers and engine is ready to start. Turning
NOTE
throttle counterclockwise from RUN to STOP shuts off
fuel flow and stops the engine.
The priming pump must run until the
(6) Ammeter (6). Located at center of engine
fire and salvage pump begins
control panel, the ammeter indicates current flow rate
discharging water.
2-7
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