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GO Transit Technical Speak - RGB
GO Transit
Tech-Speak

Terms, defintions, abbreviations, and parts listed apply to
GO's F59PHs, MP40PH-3Cs, cabcars (classic and new CEMs), coaches, and cab-oachces.


[ A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z ]
Main GO Index

A


A Ampere

A-End: The A-End is the car end
opposite the B-End. On cab cars, the cab is located at the A-End.
The "A-end" being the furthest end from the locomotive in the consist.

Aft: towards A end (cab)

AAR American Association of Railroad

ABDS Air Box Damper Solenoid

ABMS Axle Bearing Monitoring System

ABS Automatic Block Signal System

ABSORBER Shock

AC Air Conditioning (HVAC)

AC (ac) Alternating Current

AC CABINET

AC## Alternating Current Contactor

ACCESSORY RACK EQUIP

ACERT Advanced Combustion Emission Reducation Technology (C27 HEPs)

ACK Acknowledge

ACO## AC Contactor Open Relay

ACT## Armature Current Transductor

ADA American with Disabilities Act

ADJUSTER Slack

ADP Analog Digital Processor Module

ADV After Cooler Drain Valve

AIR BOX ASSY Alternator

AIR BRAKE VALVE

AIR CLEANER Inertial Air

AIR COMPRESSOR AIR FILTER

AIR COMPRESSOR ASSY

AIR COMPRESSOR DRIVE SHAFT

AIR COMPRESSOR FILTER APPL

AIR COMPRESSOR MOUNTING & DRIVE

AIR CYLlNDER Automatic Shutter

AIR DISCHARGE MOTOR

AIR DRYER A device used to remove moisture
from compressed air.

AIR FILTER Compressed Air (2)

AIR FILTER Inertial

AIR FILTER Main Generator Engine

AIR GAUGE & AMMETER MOUNTING

AIR HORN

AIR MOTOR Wiper

AIR PIPING SCHEMATIC

Air Pressure A measurable force
expressed in Pounds per Square Inch (PSI), generated by forcing free
air into a smaller volume using a mechanical device such as a
compressor. Air pressure is exerted equally on all surfaces of the container.

AL T Excitation Alternator

ALTERNATOR ASSY AR15

ALTERNATOR ASSY Auxiliary

ALTERNATOR Head End Power

AMB TEMP Ambient Temperature

AMG American Wire Gauge

AMM Ammeter

AMM TM Traction Motor Ammeter

AMMETER Load Indicating TM

AR Alarm Relay

AR15 ALTERNATOR ASSY

ARC Archive Module

ARM REST ASSY Cab

ARM Window Wiper

ARMATURE & FIELD ASSY Auxiliary Alternator

ARMATURE Traction Motor

ASR Auxiliary Speed Relay

Automatic Application An application of
the brakes initiated by reducing brake pipe pressure. An automatic
application, sometimes called the "Train Brake", will apply
the brakes on all cars and locomotives in the consist.

Automatic Brake Valve A manually
operated valve in the cab that controls the brakes on the entire
consist by reducing or increasing equalizing pressure and
subsequently brake pipe pressure in the trainline.

AUX G EN Auxiliary Generator

AUX GEN FB Auxiliary Generator Feedback

AUXILIARY ALTERNATOR ASSY

AV Engine Speed Solenoid

AWNING Cab Window

AXLE, GEAR, & WHEEL ASSY

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B


B Brake Power Contactor

B-End: The B-End is the car end with the batteries battery switch box, and the handbrake
The "B-end" being the closest end to the locomotive in the consist.

B/E MT Sign Begin/End Main Track Sign

BE CTC Sign Begin/End CTC Sign

BANK ASSY Rectifier

BATT Storage Battery (64 VDC)

BATT SW Battery Switch

BATTERY CHARGER

BATTERY CHARGING RECTIFIER

BATTERY Storage

BC Battery Charger

BC Brake Cyliner (Pressure)

BC ASM Battery Charging Assembly

BCF Battery Charger Fault Indicator

BC/LVPS Battery ChargerlLow Voltage Power Supply

BEARING Journal

BEARING Traction Motor Armature

BEARING Traction Motor Support

BELL Air Horn

BELL Locomotive

BELL RGR HTR Bell Ringer Heater

BEZEL Controller

BCF Battery Charger Failure

BF O/L Blower Fan Motor Overload

BFC-A Blower Fan Motor Contactor - A end

BFC-B Blower Fan Motor-Contactor - Bend

BHR Bell/Horn Relay

BKBL Dynamic Brake Grid Blower

BLADE Blower Wheel

BLADE Window Wiper

BLOWER Auxiliary Alternator

BLOWER Main Generator

BLOWER Traction Motor

BLOWERS & DRIVES

BMT Bimetallic Thermostat

BOARD Terminal

BOLSTER Truck

BONNET Heat Exchanger

BOOT Dust Seal

BOX ASSY Air Alternator

BOX Junction Engine Start

BP Brake Pipe (Pressure)

BR Brake Relay

Brake 26 L-U-L (F59s/MP40s)

BRAKE Hand

BRAKE HEAD Truck Assy

Brake Pipe The air brake piping on a
car or locomotive that acts as a supply pipe for the reservoirs and
is the means by which brake control signals are transmitted through the train.

Brake Pipe Reduction A reduction in
brake pipe pressure that causes a brake application throughout the train.

BRAKE RACK EQUIP (26L-U-L)

BRAKE RIGGING Single Shoe

Brake Rigging An arrangement of rods,
levers, pins, etc. that transmits forces from the brake cylinder
piston to the brake shoes.

BREATHER Compressor Crankcase

BRUSH Carbon Grid Blower Motor

BRUSH Carbon Traction Motor

BRUSH HOLDER Traction Motor

BRUSHES Carbon Alternator

BTU British Thermal Units

Buffing Force: The compressive force
developed in the coupler resulting from two coupled cars pushing each
other. This force occurs when coupling, when the locomotive is
pushing the train and when in dynamic braking.

BUMPER Head

Bus Cabcar unoffical name given to new
CEM cabcars because have a bus look

BUSHING Splined Axle Generator

Butt Line: the lateral distance (left
or right) perpendicular to a vertical plane parallel to and passing
through the longitudinal center line of the car, to a parallel
vertical plane passing through the point of measurement.

BV Engine Speed Solenoid

BWR Brake Warning Relay

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C


CA## Capacitor

CL Sign Cautionary Limit Sign

CMC Crew Management Centre

CAB ACCESS DOOR

Cab Car Coaches with brake and power controls for train consist.

CAB CEILING LIGHT (3)

CAB DOOR LOCK (6)

CAB EQUIP Mise

CAB FLOOR APPL

CAB HEATER APPL

CAB HEATER Electric

CAB HEATER Electric Layover

CAB INNER TRIM

CAB REAR DOOR

CAB SEATS

CAB SHORT HOOD DOOR

CAB SLIDING SASH

CABINET AC

CABINET Air Filter Control Cabinet

CABINET ASSY Head End Power Control

CABINET Electrical Control

CABINET Head End Power Start

CABLE Battery

CALIBRATION PLATE Fuel Tank Gauge

CAP Fuel Filler

CAP Grease Filler Gear Case

CAP Lens Indicator Panel

CARBODY DOOR

CARBON BRUSH Traction Motor

CARBON BRUSHES Alternator

CARD HOLDER

CARRIER Coupler

CASE Gear Traction Motor Lower

CASE Gear Traction Motor Upper

CB## Circuit Breaker

CC Control Console / Cab Car

CCPT Compressor Control Pressure Transducer

CCR Compressor Control Relay

CCS Compressor Control Pressure Switch

CEILING Cab

CEM Crash Energy Management Cab car

CENTRIFUGAL AIR FILTER ASSY (2)

CF O/L Condenser Fan Motor Overload

cfm Cubic Feet per Minute

CHAIN Hand Brake

CHAIN Safety Handrail

CHARGER Battery

Charging The act of increasing air
pressure in a pipe or reservoir. If this operation is maintained the
air will continue to flow until all parts are charged to the same pressure.

CHECK VALVES (4)

CIRCUIT BREAKER / TEST PANEL COMPARTMENT

Circuit Breakers: All CBs left & right
designations conform to locomotive orientation & are decaled as such.

CIRCUIT BREAKER PANEL ASSY

CIRCUIT MODULE ASSY

CLAMP Dust Guard TM Axle

CLASSIFICATION LIGHT ASSY

CLASSIFICATION LIGHT Short Hood

CLEAN OUT COVER Sand Box

CLRP Class Ligqt Resistor Panel

CN/CP Canadian National/Canadian Pacific

Cndr Conductor

COAT HOOK

COM/com complete

COMPARTMENT Excitation/Display Module

COMPARTMENT Logic Module

COMPARTMENT Volatge Regulator Module

COMPRESSOR Air

COMPRESSOR AIR FILTER

CON Consist (Revenue)

CONN PO Power Distribution Connector

Consist A locomotive and cars coupled together.

CONSOLE Control

CONTACTOR (3)

CONTACTOR Engine Purge Control

CONTACTOR Four Pole Single Throw

CONTACTOR Generator Field

CONTACTOR Generator Field Decay

CONTACTOR Generator Start

CONTACTOR Power Magnetic 1000 Amps

CONTACTOR Power Magnetic 1200 Amps

CONTROL CABINET Head End Power

CONTROL CONSOLE EQUIP

CONTROL PANEL ASSY Main

CONTROL UNIT Sanding

Control Valve A valve on a locomotive
or car that senses brake pipe pressure changes and applies or
releases the brake according to these changes.

CONTROLLER MECHANISM ASSY

COOLER APPL Lube Oil

COOLER ASSY Lube Oil

COOLING FAN HEP

COOLING FAN Main Engine

COOLING SYSTEM HEP

COOLING SYSTEM Main Engine

CORE Lube Oil Cooler

CORE Radiator (2)

COUPLER & DRAFT GEAR ASSY

COUPLER ASSY Type "H" Tightlock

COUPLING Drive Air Compressor

COUPLING Drive Auxiliary Alternator

COVER ASSY Commutator Traction Motor

COVER ASSY Turbo Hatch

CPU-D Display Central Processing Unit

CPU-E Excitation Central Processing Unit

CPU-L Logic Centra! Processing Unit

CR## Rectifier

CROR Canadian Rail Operating Rules

CRANKCASE ASSY Compressor

CRANKSHAFT ASSY Compressor

CT## Current Transformers

CTC Centralized Traffic Control System

CTO Commuter Train Operator

CTT## HEP Current Transformers

CV Engine Speed Solenoid

CWT Cooling Water Temperature Switch

CYLINDER Air Automatic Shutter

CYLINDER Brake Truck

CYLINDER Compressor

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D


DAMPER Lateral

DAMPER Yaw

DC Direct Current

DCS Door Control Station

DEFLECTOR Wind

DESICCANT CANISTER ASSY

Diaphragm A rubber disc clamped at the
outer edge by the valve body to separate two volumes of air;
frequently has a valve stem or spool attached to it that will move
with the diaphragm when there is a difference in forces across the diaphragm.

DIODES Rectifier Bank Assy

DIPSTICK Oil Level Compressor

DIR Door Interlock Relay

Direct Release A complete release of
the brakes whenever the brake pipe pressure is increased. All freight
brake equipment is set for direct release. Brakes cannot be partially
released . (Note: this is used on GO Transit equipment for shipping
purposes only.)

DKS Door Key Switch

DOB Daily Operating Bulletin

DON Daily Operating Notice

DOOR Air Brake Equip

DOOR Battery Box

DOOR Cab Access

DOOR Cab Rear

DOOR Cab to Short Hood

DOOR Carbody

DOOR Engine Room Partition

DOOR Personnel

DOOR Rear Personnel

DOOR Sand Valve Access

DOOR Sub-Base

DOOR Trap Cab Floor

DOR Door Override Relay

DPH Door Pocket Heater

Draft Force: The separating (tensile)
force developed in the coupler, resulting from two coupled cars
pulling each other. This force occurs when the locomotive is pulling
the train.

DRAFT GEAR & COUPLER ASSY

DRAFT GEAR & YOKE ASSY

DRAFT GEAR SUPPORT ASSY

DRAIN VALVES

DRC Diode, Resistor, & Capacitor Suppressor

DRIVE Air Compressor

DRIVE Auxiliary Alternator

DRIVE Main Generator Blower

DRIVE Traction Motor Blower

DRL Drain Latching Relay

db Dry Bulb

DRYER Air

Ds Swt Designated Switch

DTMF Dual-tone Multi-frequency

DUCT Air Traction Motor

DUST GUARD Traction Motor

DV Engine Speed Solenoid

DYNAMIC BRAKE FAN & MOTOR ASSY

DYNAMIC BRAKE FAN APPL

DYNAMIC BRAKE HATCH EQUIP

Dynamic Brake An electrical means of
retarding the movement of a locomotive, accomplished by changing the
traction motors into generators and dissipating the generated current
in resistor grids or overhead wiring.

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E


E East

EBT Electric Blowdown Timer

ECS Electronic Communications System

EFCO Emergency Fuel Cutoff Relay

EFCO/STOP Emergency Fuel Cutoff & Engine Stop Switch

EFCO## Emergency Fuel Cutoff Switch

EFCOH HEP Emergency Fuel Cut Off Relay

EFS Engine Filter Switch

ELCU Exterior Lighting Control Unit

ELECTRICAL CONTROL CABINET

ELEMENT Air Compressor

ELEMENT Cab Heater

ELEMENT Filter Control Cabinet

ELEMENT Filter Fuel Oil

ELEMENT Lube Oil Filter

EM2000 Locomotive microprocessor

Emergency Application A rapid depletion
of brake pipe pressure that will give the quickest and maximum brake
application; cannot be stopped once it has been initiated.

Eng Engine

Engr Locomotive engineer

ENGINE ASSY 12-710G3

ENGINE ASSY 16-710 G3B-T2/3

ENGINE ASSY 8V-149-TI

ENGINE CONTROL PANEL ASSY

ENGINE RAMP

ENGINE ROOM DOOR

ENGINE ROOM PARTITION

ENGINE/GENERATOR SET HEP

EOPREngine Oil Pressure Relay

EOPS Engine Oil Pressure Switch

EP BYPASS Engine Purge Bypass Switch

EPC Engine Purge Contactor

EPC SHUNT Engine Purge Control Shunt

EPS Emergency Pressure Switch

EQ Equipment (non-revenue consist)

EQ/RES PR Equalizing Reservoir Pressure

Equalization The point at which
different pressures in two or more volumes of air become equal. If a
connection is made between volumes of different pressures, they will
"equalize" at an intermediate pressure dependent on volume sizes.

ER Equalizing Pressure

ER Event Recorder

ER/TMS Event Recorder/Train Monitoring System

ESDR Emergency Shutdown Relay

ESR Engine Stop Relay

ESS Emergency Sanding Switch

ETP## Engine Temperature Probe

ETCM Electronic Temperature Control Module

EVENT RECORDER APPL

EXC/DISP Excitation/Display Compartment

EXCHANGER APPL Heat Fuel Oil

EXCHANGER ASSY Heat Fuel Oil

EXCITATION PANEL ASSY

EXCITATION/DISPLAY COMPARTMENT ASSY

EXHAUST APPL -HEP

EXHAUST INSULATION APPL

Exp Express

EXTINGUISHER Fire

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F


F Fahrenheit

FAN & MOTOR ASSY Dynamic Brake

FAN & MOTOR Grid Blower

FAN ASSY Grid Blower

FAN HEP Cooling

FAN Main Engine Cooling

FBE Feedback Excitation Module

FBL Feedback Logic Module

FC HEP Fan Contactor - Head End Power

FC## Fan Contactor

FCSV Full Cooling Solenoid Valve

FIL MTR Filter Blower Motor

FILLER ASSY Fuel

FILLER ASSY Sand Box

FILLER Fuel Tank

FILLER Sand Box

FILTER Air Compressor

FILTER Air E!ectrical Control Cabinet

FILTER Air Head End Power Control Cabinet

FILTER APPL Air Compressor

FILTER ASSY Fuel Oil (2)

FILTER ASSY Lube Oil

FILTER Compressed Air (2)

FILTER Inertial Air

FILTER Main Generator Engine Air

FILTER Oil Compressor

FITTING ASSY Lamp

FLAG HOLDER

FLAG HOLDER MOUNTING Cab

FLD Field

FLEXIBLE COUPLING DRIVE

FLOOR APPL Cab

FLOOR MAT

FM Frequency Meter

FM HE Frequency Meter - Head End Power

Forward: towards B end (locomotive)

FP Fuel Pump

FP/ES Fuel Prime/Engine Start Switch

FPR Fuel Pump Relay

FPRA Fuel Pump Auxiliary Relay

FRAME Air Discharge Motor

FRAME ASSY Cooling Fan (2)

FRAME ASSY Equip Rack

FRAME Truck

Frmn Foreman

FRP Feedback Resistor Panel

FRS Firing Control Synchronization Module

frt freight

ft feet

FTD Fan Tme Delay Relay

FUEL CUT-OFF SWITCH

FUEL OIL FILTER ASSY

FUEL OIL HEAT EXCHANGER APPL

FUEL OIL HEAT EXCHANGER ASSY

FUEL OIL PIPING

FUEL OIL Thermostatic Mixing Valve

FUEL PUMP ASSY

FUEL TANK ASSY

FUEL TANK FILLER APPL

Full Service A full brake application
using a brake pipe reduction of 23-26 PSI. This IS the maximum amount
of braking force available without using an emergency application.

FUSE & SWITCH COMPARTMENT

FUSE & SWITCH PANEL

FUSE & SWITCH PANEL ASSY

FVS Filter Vacuum Switch

FVTD Frequency Voltage Time Delay Relay

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G


GAUGE APPL Fuel Tank

GAUGE ASSY Fuel Tank Float Type

GAUGE ASSY Pressure Duplex

GAUGE Lube Oil Pressure

GAUGE Oil Level Compressor

GAUGE Water Tank Level (2)

GBO General Bulletin Order(s)

GCT## Generator Current Transductor

GEAR Axle Locomotive

GEAR CASE Traction Motor

GEAR Draft

GEAR MOTOR ASSY

GEAR Pinion Traction Motor

GEAR RATIO Pinion to Gear

GEN## Generator

GENERAL PURPOSE RELAY (3)

GENERATOR APPL Auxiliary

GENERATOR ASSY AR 15WBC-CAS

GENERATOR ASSY STAMFORD HEP

GENERATOR Auxiliary AC

GFC Generator Field Contactor

GFD Generator Field Decay Relay

GFI Ground Fault Interrupter

GFT Generator Field Transductor

GLASS Cab

GLASS Fuel Gauge

GLASS Rear Personnel Door Window

GLASS Sight Water Tank Gauge (2)

GLASS Sliding Sash

GLAZING Sliding Sash

GLOBE Clear Glass

GOV Governor

GOVR Governor Relay

GPS Global Positioning System

GR Ground Relay

GR RLY CO Ground Relay Cutout Switch

GR RLY LO RESET Ground Relay Lockout Reset Switch

GRAB IRONS Long & Short Hood

GRAB IRONS Side Step

Graduated Release A release of the
brakes in steps or increments. As a rule, only passenger brake
equipment is set so that brakes can be partially released.

GREASE Gear Case

GRFR Head End Power Ground Fault Relay

GRFRR Head End Power Ground Fault Relay Reset Switch

GRID BLOWER MOTOR

GRID RESISTOR Dynamic Brake

GRILLE ASSY Inertial Air Filter

GRILLE ASSY Shutter

GTCC GO Transit Communications (Control) Centre

GTCC: "Commuter Central" used when contacting the GTCC by radio

GUARD Blower Air Intake

GUARD Compressor Drive Shaft

GUARD Dust Traction Motor

GUARD Fan Dynamic Brake

GUARD Lamp

GUIDE Sander Truck

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H


HAND BRAKE ASSY

HANDLE Directional

HANDLE Throttle

HANDRAIL & BOARDING STEPS

HANDRAIL End

HANDRAIL Side

HATCH EQUIP Dynamic Brake

HATCH EQUIP HEP Cooling Fan

HATCH EQUIP Main Generator Engine Cooling Fan

HATCH Inertial Air

HATCH Turbo Cover Assy

HCPS High Crankcase Pressure Switch (HEP)

HCTS High Coolant Temperature Switch

HDLT Headlight

HE Head End

HEAD Brake Truck

HEAD BUMPER

HEAD Compressor Cylinder

HEAD END POWER ALTERNATOR

HEAD END POWER CONTROL CABINET

HEAD END POWER CONTROL PANEL ASSY

HEAD END POWER PLANT

HEAD END POWER START STATION

HEAD END VOLTAGE REGULATOR

HEADER Lube Oil Cooler

HEADER Radiator HEP

HEADER Radiator Main Engine

HEADLIGHT ASSY

HEAT EXCHANGER APPL Fuel Oil

HEAT EXCHANGER ASSY Fuel Oil

HEATER Air Dryer

HEATER Cab

HEP Head End Power

HEP Head End Power

HEP-START Head End Power Start Switch

HEP-STOP Head End Power Stop Switch

HOLDER ASSY Brush Traction Motor

HOLDER Cab Card

HOLDER Carbon Brush Grid Blower Motor

HOOK Coat

HORN Air

HOUSING Air Filter

hp Horsepower

HPS High Pressure Switch

HRM Heavy Repair Maintenance Manual

HTD WSLD Heated Windshield

HTR Heater

HUB ASSY Cooling Fan (3)

HVAC Heating Ventilation Cooling

HVC LTS High Voltage Cabinet Lights

Hz Hertz

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I


I/L Intermediate Level

IC Intercom / Intercommunications

ICCU Integrated Communication Control Unit

IHC Immersion Heater Contactor

ILCU Interior Lighting Control Unit

IMM HTR Immersion Heater

IMMERSION HEATER

in inch

Inboard: Defines the location of a
component relative to another towards the center of the car. For
example, axle 3 is inboard relative to axle 4.

IND LT PAN Indicator Light Panel (Push-To-Test)

Independent Brake Valve A manually
operated valve in the locomotive cab that allows the engineer to
independently control the locomotive's brakes, regardless of the
automatic brake handle position.

INDICATOR Heat

INERTIAL AIR SYSTEM

INNER TRIM Cab

INSTRUMENT PANEL Control Console

INSTRUMENT PANEL EQUIPPED HEP

INTERCOOLER Compressor

Interrupter A blue blinking light
installed in the Yellow Control Receptacle on the front of the
locomotive that prevents the locomotive from loading. MUST be
installed during a brake test.

IOD Input/Output Display Module

IOE Input/Output Excitation Module

IOL Input/Output Logic Module

IOL## Instantaneous Overload Relay

IOLX Instantaneous Overload Auxiliary Relay

IPC Illustrated Parts Catalogue

IRR Idle Request Relay

IS Isolation Switch

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J


Jct Junction

JOURNAL ADAPTER Truck Assy

JOURNAL BEARING ASSY

JUMPER Communication

JUMPER Head End Power

JUMPER MU Control

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K


KNUCKLE Coupler

kW Kilowatts

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L


L/L Lower Level

LAB Local Alarm Bell Relay

LAMP Cab Ceiling Light (3)

LAMP FITTING ASSY

LAMP Sealed Beam (3)

Lap A function inside a valve in which
all ports and passages are closed. This function can be induced
manually by moving a handle or it can occur automatically if a valve
is designed as a self-lapping valve . (Note: GO Transit equipment is self-lapping.)

LATCH Sub-Base Door

lb pound

lb*ft Pounds Feet (Torque)

LC## Load Control Module

LCS Local Control Switch

LCU Locomotive Control Unit

LED Light Emitting Diode

Left Side: The Bombardier BiLevel
convention, which is the opposite of the Railroad convention, states
that the Left Side is determined by looking towards the B-End of a
car from inside the car. The left side of the car is to your left.
(See decal on the exterior side of each car, A-End and B­ End).

Left & right: on engineering
drawings and electrical schematics is determined by looking towards
the locomotive (or B end of the car) from inside the car. The left
side of the car is to your left, and the right side of the car is to your right.

LENS Cab Ceiling Light

LENS CAP Indicator Panel

LEVER Brake Truck

LH Left-Hand

LIGHT ASSY Dual Beam

LIGHT Back-up

LIGHT Cab Ceiling (3)

LIGHT Classification (2)

LIGHT Ditch (2)

LIGHT Road Box Number

LIGHT Step & Ground

LIGHTS Engine Room (2)

LIGHTS Exterior

LIGHTS Interior

LLC Left Layover Contactor

LOC Layover Contactor

LOCKS & ASSY (8)

Locomotive One or more power units
coupled in multiple and operating in unison so that all units are
controlled from one location.

LOGIC COMPARTMENT DISPLAY

LOHC HEP Layover Contactor

LOPS Logic Power Supply

LOR LockOut Relay

LOS Low Oil Pressure Switch

LPS Low Pressure Switch

LR Load Regulator

LTT Load Test Transfer Switch

LUBE OIL COOLER ASSY

LUBE OIL FILTER APPL

LUBE OIL FILTER ASSY

LUBE OIL PIPING

LUBRICATOR Wick Axle

LUNCH TRAY ASSY

LVPS Low Voltage Power Supply

LVPS/BC Low Voltage Power Supply/Battery Charger

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M


MAGNET VALVE (4)

Magnet Valve A valve operated by an
electromagnet that opens and closes air passages. Valve is held in
one position by the magnet when energized and is returned to the
other position by a spring when the magnet is de­energized.

MAIN AIR RESERVOIR

MAIN CONTROL PANEL ASSY

MAN Manual

MAN SAND Manual Sanding Switch

MANIFOLD Gauge Mounting

MAT Cab Floor

MB/L, MB/R Motor/Brake Transfer Switch

MB## Motor/Brake Transfer Switch Motor

MC Master Controller

MCM Thousand Circular Mils

MCU Master Control Unit

MCB Module Control Circuit Breaker Relay

MCO Motor Cutout Switch

MCU Master Control Unit

MDS Monitoring & Diagnostics System

MEM Common Memory Module

MICROPROCESSOR DISPLAY ASSY

Mins Minutes

Minimum Reduction A brake application
resulting from a brake pipe reduction of 6-9 PSI. This in turn will
give a light brake application.

MIO Input / Output Module

MIRROR Wind Deflector

MISC Miscellaneous

MIXING VALVE Fuel Oil Thermostatic

MODULE ASSY Circuit

MODULE MOTOR ASSY

MOPS Modulation Pressure Switch

MOTOR & PUMP ASSY Lube Oil

MOTOR Air Discharge

MOTOR APPL Inertial Air Discharge

MOTOR ASSY Cab Heater

MOTOR ASSY Grid Blower

MOTOR Fuel Pump

MOTOR Gear

MOTOR Module

MOTOR OPERATED SWITCH ASSY (2)

MOTOR Traction D87B

MOTOR Window Wiper

MOUNTING Fuel Tank

MOUNTING PANEL EQUIP

mph mile(s) per hour

MR Main Reservoir

MRPS Main Reservoir Pressure Switch

MU Multiple Unit

MV 818 Filter Blowdown Magnet Valve

MV 824 Filter Blowdown Magnet Valve

MV 880 Filter Blowdown Magnet Valve

MV AUTO DRAIN Auto Dratn Magnet Valve

MV BELL Bell Magnet Valve

MV CC Compressor Control Magnet Valve

MV HLD Brake Cylinder Pressure Hold Magnet Valve

MV HORN Horn Magnet Valve

MV OS Overspeed Magnet Valve

MV RB Radar Unit Blowdown Magnet Valve

MV REL Brake Cylinder Pressure Release Magnet Valve

MV SH Radiator Shutter Control Magnet Valve

MV TMBIS Traction Motor Blower Inlet Shutter Magnet Valve

MV WSR Wheel Slip Relay Magnet Valve

MV## Magnet Valve

MV##SF Forward Sanding Magnet Valve

MV##SR Reverse Sanding Magnet Valve

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N


N North

N/A not applicable

NC Normally Closed

NO Normally Open

NO/No Number

Number One Air Brake Test A procedure
to test the consist's air brakes in compliance with Transport Canada Regulations.

NVR Network Video Recorder

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O


OAP Display Assembly Panel

Observer: Person not in control, seated
at the observer station on the right side of the cab, also called
Commuter Train Operator (CTO).

OCS Occupancy Control System

OD Outside Diameter

OHC-A1 Overheat Heater Contactor - A end, Stage 1

OHC-A2 Overheat Heater Contactor - A end, Stage 2

OHC-B1 Overheat Heater Contactor - B end, Stage 1

OHC-B2 Overheat Heater Contactor - B end, Stage 2

OIM Operating Instructions Manual

Operating End The end of the train or>br> consist that is in control of the brakes and power. Also called the
LEADING END, CONTROLLING END or HEAD END (Note GO Transit
Equipmentis a push-pull system of operation. Either end, locomotive or cab
car, can be the operating end.)

ORS Overriding Solenoid (GOV)

Outboard: Defines the location of a
component relative to another away from the center of the rear. For
example, axle 4 is outboard relative to axle 3.

OVERHEAD CONSOLE EQUIP

OVERNIGHT HEATER EQUIP

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P


P## Parallel Power Contactor

PA Public Address

PA/IC Public Address/Intercom

PANEL ASSY Circuit Breaker

PANEL ASSY Engine Control

PANEL ASSY Excitation

PANEL ASSY Fuse & Switch

PANEL ASSY Head End Monitor

PANEL ASSY Head End Power Control

PANEL ASSY Long Hood

PANEL ASSY Main Control

PANEL ASSY Warning

PARTITION Engine Room

PATBC Brake Cylinder Pressure Transducer

PATCA Call Air Pressure Transducer

PCR Pneumatic Control Relay

PCS Pneumatic Control Switch

PCSV Partial Cooling Solenoid Valve

PDI Pre Departure Inspection

PEDESTAL LINER Truck

PEI Passenger Emergency Intercom

Penalty Application An application at a
service rate caused by a locomotive overspeed or vigilance system
safety device that will automatically apply the train brake.

PH Phase

PILOT Road

PIPING Air Schematic

PIPING Brake Cylinder Truck

PIPING Lube Oil

PIPING Unloader & Water Air Compressor

PIPING Water

PIPING Wiper Air Motor

PISTON Air Compressor

PKO Power Knock-Out

PLATE Calibration Fuel Tank Gauge

PLATE Wear Truck

PLATFORM Generator Pit

PLATFORM LIGHT ASSY Short Hood Mounted

PLUG Dummy

POWER PLANT MOUNTING

PRECOALESCER Air Dryer

PREHEATER Fuel Oil

Pressure Maintaining: A brake system designed to overcome
normal brake pipe leakage and maintain brake pipe pressure at a
constant level during service applications. Individual valves can
also be pressure maintaining; they will replenish reasonable leakage
on the output side of the valve operation.

Psgr Passenger

PSH Power Supply Hybrid

psi pounds per square inch

PSIG Pounds per Square Inch Gauge

PS Pressure Switch

PT Potential Transformer

PTT Push- To-Talk

PTU Portable Test Unit

PUMP ASSY Fuel Oil

PUMP Fuel

PUMP Lube Oil

PUMP Lube Oil Compressor

PURGE VALVE Air Dryer

Push-Pull System A train or consist
that can be operated from either end so the locomotive is either
pushing or pulling . (GO Transit Equipment is a push-pull system of
operation. Either end, locomotive or cab car, can be the operating end.)

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Q


QCTO Qualified Commuter Train Operator

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R


R-22Refrigerant

RACK Accessory

RACK Storage Air Brake Hose

RADAR APPl

RADAR ASSY

RADIATOR APPL H'EP Cooling

RADIATOR APPl Main Engine Water Cooling

RADIATOR ASSY (2)

RADIATOR SHUTTER Automatic

Rapid Reduction An almost immediate
reduction of brake pipe pressure caused by an emergency brake
application or if the brake pipe continuity is severed causing
pressure to vent to atmosphere.

RADIO COMMUNICATION SYSTEM KIT

RAMP Engine

RATIO Gear

RAU Remote Alarm Unit

RBL## Radiator Blower Motor

RC O/LRefrigeration Compressor Motor Overload

RCC-A Refrigeration Compressor Motor Contactor - A end

RCC-B Refrigeration Compressor Motor Contactor - Bend

RCTH Refrigeration Compressor Thermal Cut-out

RE EPC Engine Purge Control Resistor

RE GRF HEP Ground Resistor

RE GRID Dynamic Braking Resistor Grids

RE## Resistor

REAR VIEW MIRROR

REC Receptacle

RECEPTACLE Communication MU

RECEPTACLES PLUGS & JUMPERS

RECTIFIER BANK ASSY

RECTIFIER Battery Charging

RECTIFIER Silicon Control SCR

REFRIGERATOR/WATER COOLER

REGULATOR Head End Voltage

REGULATOR Voltage VR15

RELAY General Purpose (3)

Relay Valve A valve designed to relay a
control or command signal. Allows control of a large volume of air
using only a small amount of control air.

Release:
1. A handle position on the Automatic brake valve that will recharge
the brake pipe and release the train brake.
2. A handle position on the Independent brake that will release an
independent brake application on the locomotive.
3. A full recharge of the brake pipe resulting in a full brake release.

REO Rail Equipment Operator

Reservoir A tank for the storage of compressed air.

RESERVOIR EQUIP

RESERVOIR Grid Dynamic Brake

RESERVOIR Main Air

RETENTION TANK APPl

RETENTION TANK ASSY

REV Revnue consist

RFP Relief from Flag Protection

RG MP Ring Gear Magnetic Pickup

RH Right-Hand

RHS Rheostat

RIGGING Brake Truck Assy

Right Side: The Bombardier BiLevel
convention, which is the opposite of the Railroad convention, states
that the Right Side is determined by looking towards the B-End of a
car from inside the car. The right side of the car is to your right.
(See decal on the exterior side of each car, A­End and B-End).

RING Air Compressor

RINGER Bell

RLC Right Layover Contactor

RLR Right Layover Relay

RLS Reverser Handle Switch

ROD ASSY Compressor

ROTOR Air Discharge Motor

ROTOR ASSY Alternator

RPM Revolutions per Minute

rpt repeat

RTC Rail Traffic Coordinator or Controller or Train Dispatcher

RV Directional Transfer Switch Motor

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S


S South

SAE Society of Automotive Engineers

SANDING EQUIP

SAND TRAP

SASH Sliding Cab

SCR Generator Excitation Silicon Controled Rectifier

SCREEN ASSY HEP Radiators

SCREEN ASSY Main Engine Radiators

SCREEN ASSY Sand Box Filler

SCREEN Inlet Header

SCS Special Control System

Sdg Siding

SDR MU Engine Shutdown Relay

SDRX MU Engine Shutdown Auxiliary Relay

SEAL Traction Motor Gear Case

SEALED BEAM LAMP (3)

SEAT Cab (2)

sec second

Self-Lapping The ability of a valve to
automatically stop the flow of air once its task has been completed.

SENSOR APPL Magnetic Turbo

SENSOR ASSY Battery Temperature

SERV Service

Service Application A controlled
application of the automatic brakes caused by the gradual reduction
of brake pipe pressure. This is a slower application than emergency
and may be stopped or released at any time.

SHAFT Drive Air Compressor

SHAFT Drive Auxiliary Alternator

SHEAVE Chain Hand Brake

SHIM Compressor Mounting

SHOE Brake

SHUTTER Automatic Radiator

SI special instruction

SILICON CONTROL RECTIFIER

SM Starting Motor

Snowball unoffical name given to new paint scheme on locomotives

SNS Station Name Sign

SPRING Bolster Truck

SPRING Hand Brake Chain

SPRING Journal Truck

SPST Single- Pole Single-Throw

ST Starting Contactor

STA Starting Auxiliary Contactor

START MTR TH O/L Start Motor Thermal Overload Switch

Station: the longitudinal distance, perpendicular to the plane of the
coupler face at the B end, to a parallel vertical plane passing through the point of measurement

STATOR Air Discharge Motor

STATOR ASSY Alternator

STATOR ASSY Cooling Fan (2)

STATOR Traction Motor

STEP ASSY

STH Head End Power Start Relay

STO Supervisor Train Operations

STORAGE RACK ARRANGEMENT

STRUCTURE ASSY Inertial Air

STTD Start Time Delay Relay

Sub Subdivision

SUN VISOR

SUPPORT End Handrail

SUSPENSION Traction Motor

sw## Switch

SWS Summer/Winter Switch

Swt Switch

SWITCH ASSY Transfer (2)

SWITCH Fuel Cut-Off

SWITCH PANEL ASSY Control Console

SWITCH PANEL EQUIP HEP Start Station

SWITCH Rotary Console

SWITCH Slide Console

SZ Sign Switching Zone Sign

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T


T ## Transformer

TANK ASSY Fuel

TANK ASSY Retention

TANK Water

TANK Water HEP

TB## Terminal Board

TC Thermal Cut-out

TCP Triple Action Boost Control Panel

TCR Trickle Charger Relay

TDC Time Delay Curve

TERMINAL BOARDS

TEST PANEL ASSY

TF Thermal Fuse

TFP Trainline Filter Panel

THERMOSTAT Cab Heater

THERMOSTATIC MIXING VALVE Fuel Oil

THS Throttle Handle Switch

TIH Immersion Heater Transformer

TLC## Trainline Complete Relay

TLCH LayovEr Cab Heater Transformer

TLOH Layover Heater Transformer

TLP Turbo Lube Pump Motor

TLPR Turbo Lube Pump Relay

TLPS Turbo Lube Pressure Switch

TLR Trainline Relay

TLV## Trainline Voltage Relay

TLVD## Trainline Voltage Delay Relay

TM TEMP Traction Motor Temperature Probe

TM## Traction Motor

TMA Traction Motor Cooling Air Temperature Probe

TMBIS Traction Motor Blower Inlet Shutter Relay

TMS Train Monitoring System

TMS Train Monitoring System

TOILET Stainless Steel

TOL## Thermal Overload Relay

TOLX## Thermal Overload Auxiliary Relay

TOP Track Occupancy Permit(s)

TP Thermal Protector

TRACTION MOTOR

TRACTION MOTOR AIR DUCT

TRACTION MOTOR MOUNTING

TRACTION MOTOR SUPPORT BEARING

TRACTION MOTOR SUSPENSION

Trailing End The end of the train or
consist that is not controlling operation (GO Transit Equipment is a
push-pull system of operation. Either end, locomotive or cab car, can be the trailing end.)

Train Same as a consist except it, has
been assigned an operating crew and train number.

Train Crew: consists of the Locomotive Engineer & Conductor (or CSA)

Train Operator: Person at the train
controls in the active cab on the left side of the cab, also called
Qualified Commuter Train Operator (QCTO).

TRAINLlNE FEEDBACK PANEL CIRCUIT MODULE

TRANSFER SWITCH ASSY (3)

TRANSFORMER Current AR15 Alternator

TRAP DOOR Cab Floor

TRAP Sand

Trnm Trainman

TRUCK Four Wheel Single Shoe Brakes

TS Thermal Switch

TU Track Unit

TURBO HATCH COVER ASSY

TURBO MAGNETIC SENSOR APPL

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U


U/L Upper Level

UHF Ultra High Frequency (Radio)

UNCOUPLING ARRANGEMENT

UOF Under/Over Frequency Relay

UOFT Under/Over Frequency Trip Relay

UOV Under/Over Voltage Relay

UOVT Under/Over Voltage Trip Relay

USRC Union Station Rail Corridor

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V


V## Volts (AC/DC)

Vac Volt(s) alternating current

VALVE Air Bell Operating

VALVE Air Brake

VALVE Air Horn Operating

VALVE ASSY By-Pass Relief

VALVE ASSY Compressor

VALVE ASSY Magnet (4)

VALVE Brake

VALVE Check (4)

VALVE Discharge High Pressure

VALVE Discharge Low Pressure

VALVE Drain Air Dryer

VALVE Electric/Manual Drain

VALVE Horn Operating

VALVE Manual Drain

VALVE Outlet Check

VALVE Purge Air Dryer

VALVE Relief Lube Oil Cooler

VALVE Relief Oil Pressure

VALVE Reservoir Check

VALVE Safety

VALVE Shut-Off Sanding

VALVE Unloading High Pressure Suction

VALVE Unloading Low Pressure Suction

Vdc Volt(s) direct current

VENT APPL HEP Engine/Generator

VENTILATION Cab Roof

VFD Vacuum Fluorescent Display

VHF Very High Frequency (Radio)

VHF Very High Frequency

VIBRATION ISOLATOR HEP

VISOR Sun

VM Voltmeter

VM SW Voltmeter Switch

VOLTAGE REGULATOR VR15

VR HE Head End Power Voltage Regulator

VR## Voltage Regulator Module

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W


W Watts

W West

WARNING PANEL ASSY Locomotive

Water Line: the vertical distance above the top of the rail
to a horizontal plane passing through the point of measurement

WATER PIPING

WATER TANK

WATER TANK LEVEL GAUGE (2)

WB Wet Bulb

WDR Water Drain Relay

WEATHERSTRIP Cab Door

WEATHERSTRIP Cab Glazing

WG Water Gauge

WHEEL Blower

WHEEL Locomotive

WHISTLE

WICK Lubricator Axle

WIND DEFLECTOR

WINDSHIELD GLASS Heated

WIPER Air Motor

WIPER Window

Wk Work

WL Wheel Slip Light Relay

WSF Wheel Slide Failure Indicator

WOB weekly operating bulletin

WOCC Willowbrook Operations Control Centre

WOPRT work order, train journal or list

WTH Water Tank Heater

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X


Xmit Transmit

Xover Crossover

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Y


YAW DAMPER

YL Sign Yard Limit Sign

YOKE Draft Gear

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Z


Z## Zener Diode

ZSR Zero Speed Relay

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