GENERAL ELECTRIC SERIES 8 HANDBOOK

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MASTER CONTROLLER The Master Controller is used by the operator to control the locomotive during operation . It is equipped with a Throttle handle, Dynamic Braking handle and Reverse handle . Various toggle switches, circuit breakers, indicating lights and instruments are mounted adjacent to the controller housing and are also used for operating functions .

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Reverse Handle The Reverse handle, the bottom of the three handles, determines the direction of locomotive travel . It has positions REVERSE, OFF and FORWARD. The handle is removable only when the Throttle handle is in IDLE position and Braking handle is in OFF.

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Throttle Handle OPERATION The Throttle handle is above the Reverse handle . It has a SHUTDOWN, IDLE and eight major positions or notches for power

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The SHUTDOWN position is located to the right of IDLE

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The Braking handle is above the Throttle handle and has OFF and SET-UP positions and a BRAKING sector .

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In the OFF position, nearest the operator, dynamic braking is shut off. The SET-UP position establishes dynamic braking circuits . Movement beyond this position into the BRAKING sector (away from the operator) increases braking effort

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INTERLOCKING BETWEEN HANDLES

Interlocking Between Handles
Interlocking between the handles of the Master Controller is provided as follows :

1 . The Reverse handle must be inserted before the Throttle handle can be moved out of IDLE position for power
or emergency shutdown.
2 . The Reverse handle can be moved into FORWARD or REVERSE only when the Throttle handle is in IDLE
position and the Braking handle is in OFF position.
3 . The Reverse handle cannot be moved out of FORWARD or REVERSE position when either the Throttle handle
is advanced beyond IDLE or the Braking handle is advanced beyond OFF.
4 . The Braking handle must be in OFF position before the Throttle handle can be moved out of IDLE position,
except for emergency shutdown.
5 . The Throttle handle must be in IDLE and the Reverse handle in FORWARD or REVERSE before the Braking
handle can be moved .
6 . The Reverse handle can be removed when the Braking handle is in OFF and the Throttle handle is in IDLE.

CAUTION : Finding the Braking handle away from OFF or the Throttle handle away from IDLE with the Reverse handle removed indicates that interlocking between handles requires repair or adjustment.Do not attempt to operate .

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Lead or Single-Unit Operation Operating handle set-up (Reverse handle removed):

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1 . Braking (top) handle in OFF.

2 . Throttle (middle) handle in IDLE

3 . Insert the Reverse (bottom) handle.

4. Set the Reverse handle for desired direction .

Operation in Dynamic Brake Mode

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1 . Throttle handle returned to IDLE.

2. Move the Braking handle to SET-UP; pause, then advance as desired

Operating in Power Mode1 . Braking handle remains in OFF.2 . Move the Throttle handle to the desired notch

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1 . Braking handle remains in OFF.

2 . Move the Throttle handle to the desired notch

Operation as Trail Unit

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1 . Braking handle in OFF.

2 . Throttle handle in IDLE.

3 . Reverse handle centered and removed

For Emergency Multiple-Unit Shutdown In the controlling unit, pull out axially on the Throttle handle, and move it beyond IDLE to SHUTDOWN.NOTE : In a trail unit, the Reverse handle must be inserted to release the Throttle handle before it can be moved to SHUTDOWN

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Automatic Brake Valve Handle The Automatic Brake Valve handle has six positions:

1, RELEASE (RUNNING) position - This position charges the equipment and releases the locomotive and train
brakes after an Automatic application This is accomplished by controlling air flow to the brake pipe as set by
handle position of regulating valve (on back of brake stand) The RELEASE position is at the extreme left of
the quadrant and is the normal position when the automatic brake is not is use,
2, MINIMUM REDUCTION position - This position is located to the right of the RELEASE position where the
brake valve handle reaches the first raised portion of the quadrant With the brake valve handle moved to this
position, the Minimum Service application is obtained, which results in a four to six pound brake pipe reduction
3, SERVICE positions - This sector for brake valve handle movement is to the right of the MINIMUM
REDUCTION position Moving the handle from the left to right in this sector increases the degree of brake
application At the extreme right of the sector, a Full Service brake application is obtained
4. SUPPRESSION position - This position is located with the handle against the second raised position of the
quadrant, to the right of the RELEASE position This position provides a Full Service brake application and will
suppress a cab signal or speed recorder overspeed as well as the vigilance deadman feature
5, HANDLE OFF position - This position is located by the quadrant notch to the right of the SUPPRESSION
position The handle is normally removable in this position It should be placed in this position and removed
on trailing units of a multiple-unit consist or on locomotives being towed "dead-in-train"
6. EMERGENCY position - This position is located to the extreme right of the brake valve quadrant It is used to
make a brake valve initiated Emergency brake application
When an Emergency application has been experienced, the Automatic brake valve handle must be moved to the
EMERGENCY position and left in this position until the equalizing reservoir gage hand indicates zero ("0") pressure
and the Sand light is out, The Automatic brake valve handle may then be moved to the RELEASE position to recharge
the brake pipe and release the brakes

The Independent brake valve has two positions: RELEASE and FULL APPLICATION, with an application zone between The brake valve is of the self-lapping type which automatically maintains brake cylinder pressure when itr eaches a value corresponding to the handle position An Independent brake application can be released only by movement of the handle toward the RELEASE position An automatic Service or Emergency application can be released on the locomotive consist by depressing the Independent brake valve handle in the RELEASE position

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Brake Valve Cut-Out Cock This cock, also known as the "double-heading cock" is located on the front of the Automatic brake valve Pus hin the handle and turn to position for type of service . The OUT position is used when the locomotive is operating as a trailing unit .

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Air Regulating Valve (Feed Valve)The air regulating valve, located on the control stand, Fig . 1, automatically maintains a predetermined air pressure in the train brake pipe . A clockwise movement of the adjusting handle increases the pressure setting. A counterclockwise movement decreases the pressure setting. Adjust to conform with railroad rules

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Lead Axle Sand Switch Sand will be applied to the Front axle only

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AIR GAGES

Air Gages
The following duplex air gages are located on the gage panel on the control console :
1 . Main Reservoir/Equalizing Reservoir - Red hand indicates main reservoir pressure ; white hand indicates equalizing
reservoir pressure.
2. Brake Cylinder/Brake Pipe - Red hand indicates locomotive brake cylinder pressure ; white hand indicates brake
pipe pressure.
3 . Air Flow Indicator - White hand indicates amount of flow . Red hand is set by the operator. When the flow
is greater than what the operator set, a red light on the bottom of the indicator will come on.

Load Ammeter This meter reads the highest current going to the traction motors. Motoring is shown to the right of 12 o'clock and has two bands. The green band is the continuous rating of the motors and the red band is in the short time rating . When in the short time rating, observe the time limit on the meter. Dynamic Braking is shown to the left of 12 o'clock and has two bands. The yellow band is the continuous rating of the motors and the red band is overload. If the meter goes into the red band, reduce the Braking Handle position.

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Wheelslip - Indicates that the wheels on some locomotive in the consist is slipping. This is a trainlined indication .

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PCS Open - Indicates that the air brakes have gone into Emergency position and all power should be removed from the locomotives

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Dynamic Brake Warning - This indicates that a locomotive in the consist is experiencing excessive dynamic braking current. Reduce the braking handle position until this light goes out. This light is an option and may not appear on your locomotive

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Sand - This indicates that either the lead axle and switch or the sand switch is on. During a wheel slip, sanding will automatically turn on, then off.

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Generator-Field Circuit Breaker The Generator-Field circuit breaker in ON whenever the locomotive is powered AND operating as a lead unit . The breaker also may be used to keep the main generator de-energized when it is necessary to run the engine at speeds higher than idle .

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Engine Run Breaker The Engine Run breaker controls engine speed. It must be ON to control engine speed of the lead locomotive and all locomotives of a consist . On trail locomotives, the breaker is in the OFF position

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Control Breaker The Control breaker must be ON to start the engine and provide power to other circuits including the auxiliaries. In MU operation, this breaker must be ON on the lead locomotive only .

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Dynamic Braking Control Breaker The Dynamic Braking Control breaker is used to control the dynamic braking of the locomotive . In MU operation, this breaker must be ON on the lead locomotive only to control the dynamic braking of all units in the consist

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Engine Stop Push Button This button is used to shut down the diesel engine on that unit only.

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Engine Control Switch The Engine Control (EC) switch has a four position switch, START, ISOLATE, RUN AND JOG. The Engine Start switch is effective only when the EC switch is in the START position . The JOG position is an option and may noT appear on your unit .When the engine is running and the EC switch is in START position, engine speed is held at idle and power cannot be applied to the locomotive . The power plant is said to be "off the line ."When the engine is running and the EC switch is in the ISOLATE position, the engine speed is held at idle and power cannot be applied to the locomotive . The alarm bell will sound if a fault occurs that will shut the engine down. When the engine is idling and the locomotive is to be operated, the EC switch must be moved to the RUN position .When the engine is shut down and the locomotive is to be moved using battery propulsion, the EC switch must be moved to the JOG position .

STARTING THE DIESEL ENGINE

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1 . Check that the emergency stop feature is nullified (Throttle handle in IDLE).

2 . Close the Battery switch located behind the door under the EC panel.

3 . Turn on all the circuit breakers in the bottom row of the EC panel .

4. Turn on whichever circuit breakers on the top row are needed.

5 . Check the Diagnostic Display for any fault messages . It should read READY.

6 . Place the EC switch into the START position.

7 . Go to the start station located at the engine and put the start switch to the PRIME position and hold until you see fuel in the sight glass.

8 . Turn the switch to the START position and hold until the engine starts.

STOPPING THE DIESEL ENGINE :

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1. Place the EC switch in the START position .

2 . Push the Engine Stop button on the EC panel or at the Start Station.

3 . Open all Circuit Breakers.

4 . Open the Battery Switch.

5 . Secure the locomotive

REVERSING LOCOMOTIVE

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1 . Bring the locomotive to a full stop .

2. Move the Reverse handle to the opposite direction .

3 . Release the brakes .

4. Advance the Throttle handle

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OPERATING AS A LEAD UNIT :

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1 . Test the Air brakes in accordance with railroad rules .

2. Close the Generator Field, Dynamic Braking control and Engine Run circuit breakers on the operator's console .

3 . Place the MU headlight switch in the proper position.

4. Move the Reverse handle to the desired direction .

5 . Operate the locomotive in accordance with railroad operating procedure

OPERATING AS A TRAIL UNIT :Air Equipment Set-Up

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1 . Make a Full Service application with the Automatic Brake valve handle .

2. Move the brake valve cut-out (double-heading) cock to the OUTposition .

3 . Move the Automatic Brake valve handle to the OFF position, and remove the handle.

4. Place the Independent handle in the RELEASE position .

5 . Move the MU Cut-Out cock to the out position

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Electrical Set-Up

2 points

1 . Move the Reverse handle to OFF, and remove the handle .

2. Open the Generator Field, Dynamic Brake Control and Engine Run circuit breakers on the operator's console. Leave all the circuit breakers in the closed position on the bottom row of the EC panel.

3 . Place the MU headlight setup switch in the proper position .

HAULING DEAD IN TRAIN

3 points

1 . Place the Independent Brake valve handle in the RELEASE position and the Automatic Brake valve handle in the OFF position .

2 . Depress the brake-valve cut-out cock handle and move to the OUT position .

3. Place the MU cut-out cock (double-ported cut-out cock) handle in the IN or OPEN position .

4 . Open the dead-engine cock.4

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