GE Print & Schematic Reading (Final)
Device Table Section
1. The symbol nomenclature of the device on schematic 2. The type or catalog number of the device. 3. The section of the schematic where the device is located. 4. The function of the device 5. The physical location of the device on the locomotive.
Busbar
BB on the GE schematic represents a...
Parallel
Dash 8 traction motors are hooked to the main alternator output in...
The wire identification tag.
Each wire on a schematic has a number that matches
TB1MN
FPM is connected to terminal boards TB1ME and...
All devices such as relays, contacts, switches, etc are shown in their energized position.
False
In a GE wiring schematic, the A in a wire number indicates negative polarity.
False
LBS4 is located in the CA3 section of the locomotive and represent load box silicon diode 4.
False
On a Terminal Board Drawing, a wire labeled 1APC2 indicates the stud that the wire is connected.
False
On a schematic, the reverser contacts are shown in the non-energized position. The braking switch is shown in the motoring position.
False.
Master Controllers Sequence
Has three handles: A Throttle handle to control the speed. 2. A Braking handle to control the braking operation. 3. A Reverse handle for forward or reversing selection of motoring. The MCS lists the operating sequence of cam switches and the position (OPEN or CLOSED) required to establish the various operating conditions for accelerating and braking the locomotive.
3
How many Grid blower motors are there in C40-8?
8
How many terminals on TB1F?
6
How many traction motors are on a C40-8?
Engine Speed Control
List the position of the throttle handle the diesel engine speed and the picked-up or dropped out position of the engine speed control.
Trainline Receptacles
Lists the receptacles and their pin numbers at both ends of the locomotive, the identification letters of the wires connected to the pins, the function of the wires and the sxection of the systems schematics.
2
On TB9A, how many wires are on F terminal?
GSS-Engine Crank Sequence Contactor
On section F, what coil is energized when EC 6 and EC 14 are closed?
TB7A
On section J, what terminal board does wire B7 from BKT (Brake) coil connect to?
Equipment Location
Shows the physical location of the device on the locomotive and is referred to on the devices table section.
Control Sequence Table
Shows the sequence of operation of the control for the traction motors both in motoring and braking.
Index
Systems schematic where the pertinent electrical systems can be located, circuits function, the schematic sheet number.
Sequence Table
Table that shows the sequence of operation of contactors, relays, solenoids, etc.
17LV66J10
The GDMR part number is
Throttle
The Master Controller has three handles and they are reverse handle, braking handle, and...
Series
The Traction Motor Field and Armature are connected in...
Motoring
The braking switch is shown in the
Lines on a schematic are drawn so
The direction a wire takes can be followed.
Legend
The drawing section title for the sheet containing schematic symbols that represent electrical components or devices on the schematics and are standard symbols shown on any electrical drawing
Position of the throttle handle
The engine speed controls table lists...
The device, panel or circuit the wire is connected
The nomenclature that appears after wires ending in arrowhead indicate...
On a schematic, if you see EXP.AG, this means that connection in EXC Panel connection located in excitation panel on wiring stud AG.
True
Parenthesis indicate family or bundle of GA and BP wires. Ex) (GA) / (BP).
True
The DIS part number is 41B546301P1
True
The GDMR is found in the CA2 location of the locomotive.
True
The schematic is laid out so the positive voltage wires are shown in the top portion of the schematic and the negative wires are shown in the bottom portion of the schematic.
True
Long Hood MU Receptacle located in back of the locomotive
What is MUR and where is it located on the locomotive?
41B546301P1
What is the DIS part number?
CA7
What is the LOCO LOC for the BKT?
H2 or H3
What sheet and line is the BLR coil located?
