Table 4-5.—A/M27T-5 Main Control Panel Controls and Indicators
FIG. 7-12
INDEX NO.
CONTROL/INDICATOR
FUNCTION
1
Panel light (DSI)
Provides main control panel lighting. Illuminates if
ignition switch S1 is set to IGNITION ON.
2
AMMETER (MI- 1)
Indicates charging condition of batteries B1 and B2.
When discharging, indicates negative. When
charging, indicates positive (-60 to +60 amp scale).
3
COLD WEATHER STARTING
Facilitates cold weather diesel engine starting.
AID handle
Handle pulling action is transmitted by sheathed
cable to cold weather starting aid 6 cc valve lever.
Ether is injected into diesel engine air inlet housing
when handle is pushed back in.
4
START switch (S6)
When pressed, initiates diesel engine start sequence,
if ignition switch S1 is set to IGNITION ON.
5
Diesel engine OIL PRESSURE
Indicates diesel engine oil pressure (0 to 100 psi
gauge
scale, 54 to 58 psi nominal from 2000 to 2500 rpm).
6
Fuse (F2)
Protects electrical circuits.
7
FLUID TEMP WARNING
Illuminates when hydraulic fluid temperature
LIGHT (DS7)
increases to trip setting (160°F) of fluid temperature
thermoswitch S5.
8
TACHOMETER/HOURMETER
TACHOMETER indicates diesel engine rpm (0 to
3500 rpm). HOURMETER (0.01 to 9999 hours)
counts diesel engine revolutions in terms of time
[indicates 0.1 hour (6 minutes) per 12318
revolutions].
9
EMERGENCY STOP handle
Used for emergency diesel engine shutdown.
Handle pulling action is transmitted by sheathed
cable to diesel engine air inlet housing shutdown
valve lever.
10
PULL TO STOP/ENGINE STOP
Used for normal diesel engine shutdown. Handle
handle
pulling action is transmitted by sheathed cable to
diesel engine variable speed closed linkage
mechanical governor stop lever.
11
THROTTLE control handle
Handle pulling action is transmitted by sheathed
cable to diesel engine variable speed closed linkage
mechanical governor throttle lever.
12
Panel light (DS2)
Provides main control panel lighting. Illuminates if
ignition switch S1 is set to IGNITION ON.
4-28
