Air Brakes Flashcards
1
Q
When is the Brake Pipe (white needle) for an M3 fully charged?
A
130-150 psi
2
Q
When is the Brake Pipe (white needle) for an M7 fully charged?
A
120-150 psi
3
Q
When is the Brake Pipe (white needle) for an M9 fully charged?
A
120-150 psi
4
Q
When is the Brake Pipe (white needle) for a C3 / DE / DM fully charged?
A
110 psi
5
Q
Door lights
for M3
Red:
A
Red: Door open
6
Q
exterior Door lights for M7 (near door)
Red:
Amber (flashing):
Red (flashing):
A
Red: Door Open
Amber (flashing): Door Disabled
Red (flashing): Door closing
7
Q
exterior Door lights for M9 (near door)
Red:
Amber (flashing):
Red (flashing):
A
Red: Door Open
Amber (flashing): Door Disabled
Red (flashing): Door closing
8
Q
exterior Door lights for C3 (near door)
RGAR
A
Red: Door Open
Green: Door Closed
Amber (flashing): Door Disabled
Red (flashing): Door closing
9
Q
What is the Main Reservoir pressure for a C3?
A
125-140 psi
10
Q
when is a C3 at Max Brake?
A
Brake Cylinder (RED needle) is 30 psi
11
Q
DE
DM
C3
Fully Charged Brake Pipe (white needle) = 110 psi
A
..
12
Q
DE/DM only
What is “bottled air” error?
How can it be solved?
A
Bottled Air error: When the Brake Cylinder (red needle) can not go to 0
To solve this, open one of the four Independent Application and Release Valves
13
Q
When brakes increase (or applying brakes) =
BRAKE CYLINDER (red needle) increases
If brake cylinder (red needle) decreases to 0, train can start
A
14
Q
Emergency / Dump
A
a rapid reduction in brake pipe (white needle) pressure
15
Q
On a Push-Pull Train:
DE/DM is pushing/pulling
Bi-level Cab Car is useless
A
16
Q
On a C3,
the Brake Pipe (white needle) can be either
1)
2)
A
1) Fully Charged (out of emergency) - 110 psi
2) Emergency / “dump” - 0 psi
17
Q
Class II / Intermediate Rear End brake test for Diesel/ DE/ DM/ C3 (cab car)
What must be observed before doing this?
A
Brake Pipe at 110 psi DE / DM / C3 Fully charged
Check Main Reservoir at 125-140 psi
C3 Brake Cylinder (Red Needle) = 30 psi
DE/DM Brake Cylinder = 45-55 psi
18
Q
Class II / Intermediate Rear End brake test for Diesel/ DE/ DM/ C3 (cab car)
Order of signals:
A
oooo
o
oooo
—
—
19
Q
DE = Diesel
DM = Diesel & Electricity
A
20
Q
when is a M3 at Max Brake?
A
Brake Cylinder (RED needle) is approximately 70 psi
21
Q
when is a M3 at Emergency?
A
Brake Cylinder (RED needle) is approximately 75-90 psi
22
Q
when is a M7 at Max Brake?
A
Brake Cylinder (RED needle) is approximately 38 psi
23
Q
when is a M7 at Emergency?
A
Brake Cylinder (RED needle) is approximately 42-54 psi
24
Q
when is a M9 at Max Brake?
A
Brake Cylinder (RED needle) is approximately 36-53 psi
25
when is a **M9** at **Emergency**?
Brake Cylinder (RED needle) is approximately 41-58 psi
26
What does EMV stand for?
Emergency Magnet Valve
27
when is a **DE / DM** at **Max Brake**?
Brake Cylinder **(ANALOGUE NUMBER)** is 45-55 psi
28
*exterior Door lights* for **M3** (near door)
Red - Door open
29
**F** End
Engineer’s end / Engineer’s compartment side
30
**A** End
where the doors are operated from
Engineer’s compartment **NOT** here
31
Fully Charged **Brake Pipe** (white needle or analogue)
M3 = 130-150 psi
M7 = 120-150 psi
M9 = 120-150 psi
C3/DE/DM = 110 psi
32
**DE** is **Diesel only**
No Electricity, No 3rd Rail
#400s
33
DE/DM
The end closest to the engineer is the Front end. **”F” end**
The back is the **”B” end**
(farthest from the engineer)
34
DM
1) Diesel &
2) Electric (3rd rail)
#500s
35
DE/DM
**Brake Pipe** (analogue) fully charged: 110 psi
**Main Reservoir**: 125-140 psi
**Max Brake**: 44-55 psi
36
**Sealing Switches** = so they can’t be manipulated under normal circumstances.
Sealed: Switch is cut out (off)
Break Seal: switch is cut in (in)
37
*DE/DM*
***ASC Seal*** location:
Lower Left hand electrical locker ***catwalk***
38
***ASC Seal*** locations:
**DE/DM**: lower left-hand electrical locker / **CATWALK**
**C3**: behind Engineer’s Cab in locker above the PTC onboard computer
**M3**: “B” Car only, “B” End, Locker behind the bathroom on the ceiling
**M7**: “B” Car, off the cab side, electrical locker opposite of the Engineer’s cab
**M9**: “B” Car, on Cab Side, electrical locker behind Engineer’s cab
39
**DE/DM**
CHEAT SHEET
Brake Pipe Fully Charged (analog): 110 psi
Main Reservoir: 125-140 psi
Max Brake (Brake Cylinder analog): 45-55 psi
40
**C3**
CHEAT SHEET
Brake Pipe Fully Charged (white needle): 110 psi
Main Reservoir: 125-140 psi
Max Brake (Brake Cylinder Red Needle): 30 psi
41
**M3**
CHEAT SHEET
Brake Pipe Fully Charged (white needle): 130-150 psi
Main Reservoir: 130-150 psi
Max Brake (Brake Cylinder Red Needle): approx. **70** psi
Emergency (Brake Cylinder Red Needle): 75-90 psi
42
**M7**
CHEAT SHEET
Brake Pipe Fully Charged (white needle): 120-150 psi
Main Reservoir: 120-150 psi
Max Brake (Brake Cylinder Red Needle): approx. 38 psi
Emergency (Brake Cylinder Red Needle): 42-54 psi
43
**M9**
CHEAT SHEET
Brake Pipe Fully Charged (white needle): 120-150 psi
Main Reservoir: 120-150 psi
Max Brake (Brake Cylinder Red Needle): 36-53 psi
Emergency (Brake Cylinder Red Needle): 41-58 psi
44
C3 **Exterior F-end** Lights
**Blue**: ASC cut in / ATC operative
**Red (flashing)**: hand brake applied
**White**: door station energized
**Amber**: air brakes applied
45
if you have **Stuck Brakes** on a **DE/DM**, you must *pinch* the
**truck cut outs**
46
Where are the **truck cut outs** on a **DE/DM**?
truck cut outs on:
**Engineer’s side only. “F” end & “B” end**
CAB SIDE
Either side of ***fuel tank***
Outside only
on DM, there’s an additional *3rd cut out* inside the car
47
If brakes are stuck on a **C3**, utilize **truck cut outs**
On a C3, where are the Truck Cut Outs located?
**OUTSIDE by doors L1 & L2 (Southside)**
and
**Inside Locker 4 & 6**
48
C3 **Trainline Indicators**
1) **Brake Applied Light**: All air brakes are applied
**2) Brake Release Light**: All air brakes are released
**3) Door Closed Light**: All doors are closed
4) **Brake Pipe Gauge**: Only after a proper brake test
5) **Parking Brake Hand Brake**: illuminated when 1 or more parking/hand brakes are applied
49
For a C3 train to move, which **two Trainline** Indicators must be illuminated?
**Brake Release Light** & **Door Closed Light**
Train cant go if any of these two lights are off
50
**ACSES Seal** location on all trains:
**C3**: behind Engineer’s cab in the locker above the PTC onboard computer
**M3**: “B” car only, “B” end, adjacent to the Bathroom
**M7**: “B” car in Engineer’s cab, **off cab side** locker
**M9**: “B” car in left hand electrical cabinet, just **behind the Engineer**’s Operating Cab
51
What are two ways to initiate/place a **DE/DM/C3** into **Emergency**?
1) ABV / Automatic Brake Valve *into emergency position*
2) EBV / Emergency Brake Valve handle
52
DE/DM has an **INDEPENDENT BRAKE** (the culprit of “bottled air”)
C3 doesn’t have Independent Brake (thus C3 doesn’t have Bottled Air issues)
53
Mode Selector Knob - used to convert from Diesel to Electric
54
**DE/DM to C3 Connection**
* (MU Connection) Black 36 pt.
* (Communication) Blue 36 pt.
* (4) High Voltage - 3 pt.
* Brake Pipe to Brake Pipe
* (DE/DM) **Car Supply** to **Main Reservoir** (C3)
55
**C3 to C3 Connection**
* (MU Connection) Black 36 pt.
* (Communication) Blue 36 pt.
* (4) High Voltage - 3 pt.
* Brake Pipe to Brake Pipe
* (C3)**Main Reservoir** to **Main Reservoir**(C3)
56
Diesel Passenger Air & Electrical Connections
Communicating buzzers, doors, etc. = **Blue 36 pt.**
Provides heat, light, and air conditioning / HEP = **(4) High Voltage 3 pt.**
Tractive Power / Ability to move train = **Black 36 pt.**
57
name *5 switches* that are SEALED on the DE/DM
1) TE Limit Bypass
2) Train Brakes Bypass
3) Hand Brake Bypass
4) Coach Door Bypass
5) Deadman Bypass
58
Standing Electric Cut Out (SECO) Switch Procedure
**SECO**: Cutting out ASC without breaking seal in territory thats not speed control
To do this, depress and hold SECO switch on the ground
59
DIESEL PASSENGER
During a **Class II brake test**, the brakeman does not observe a **Brake Cylinder Release (0)** on the rear locomotive. What could be the cause?
***Bottled Air***
to fix this, hit any of the four **Independent Application-Release Valve**
60
**Cab Cars** are number 5000 (even & odd numbered)
61
Trailer cars have NO F-end / No engineer’s compartment
Trailer cars instead have **“A”-end** (Where the door operating panel is located)
62
**Exterior lights at “A” end of a T Car, TT Car, or C3**
**Red (Flashing)**: Hand brake applied
**White**: Door station energized
**Amber**: Local air brake applied
63
Exterior Door Light (Amber Flashing) = Door disabled
This flashes when you cut out a door
64
Door Malfunction - C3
on C3, **Code 6** cant be reset on Door control module
C3 Code 6: Door must be *cut out* (electrically & manually)
65
to go **Under C3**, what procedure do you do?
**ISOLATION OF HEAD END POWER**
To isolate Head end power:
1) **MODE** switch to **OFF**
2) Isolation Switch set to **”START-STOP-ISOLATE”**
66
to go **Under DE/DM**, what procedure do you do?
**Discharge the DC Link**
aka
**DCL Shorting Test**
(same name to go under M7/M9)
67
When laying up equipment in a yard, how many handbrakes must be applied?
A **minimum of two handbrakes must be applied on each end**, unless otherwise provided
68
F-end exceptions (E-10 & E-15)
Engineer is at the B-end.
F-end is far from the engineer
E10 & E15 = the long hood is the front end / F-end
69
Maximum allowable brake cylinder piston travel
E-10 = Not exceeding 4 inches
E-15 = Not exceeding 6 inches
Freight Car = 7-9 inches
70
Freight car **Brake Pipe** Angle Cock positions:
for Open & Closed
Inline: Brake pipe open
Perpendicular : Brake pipe closed
brake pipe = the exception
71
How to **RELEASE STUCK BRAKES** on a **freight car**
1. **Close the Brake Pipe Branch Pipe Cut-Out Cock (BPBPCOC)** - this stops it from applying
2. **Pull the Duplex Release Rod** - this releases whatever is left in there
72
Freight Cars **Retaining Valve** are in what 3 positions?
1) **Direct Exhaust**: *Always used on LIRR
2) Slow Direct Exhaust
3) High Pressure - brakes will never release
73
***PASSENGER***
CFR Part **238** tests:
Class I = Done only by a QMP
Class IA (walking brake test) = Done by QMP or QP
Class 2 (rear end test) = Done by QMP or QP
74
**CFR 238** **Class I** brake test
Only by QMP
3 hours long
BT4 brake test slip (1 calendar day & cannot expire)
75
When the following are **in-line** with the pipe, are the valve open or closed?
Brake Pipe
Main Reservoir equalizing
Actuating
**Brake Pipe** = Open (exception)
**Main Reservoir equalizing** = closed
**Actuating** = closed
76
**PASSENGER** Trains must have what percentage of brakes in operating condition before leaving initial terminal?
100%
***On a charged train***
At 100% operative brakes, Trainline **Brake Applied** can turn on
77
you need **85%** operative brake to work on Main Track
78
Standard **BRAKE PIPE** (White Needle) fully charged
Freight = 90 psi
Diesel Passenger (DE/DM/C3) = 110 psi
79
On diesel:
if handles are **Perpendicular** to the pipe, is the ***Brake Pipe** Angle Cock* open or closed?
Perpendicular = Angle Cock is ***closed***
It should be opened slowly
80
Whats the sequence of communication buzzers for a
**Class II** brake test on **Push-Pull** train
**oooo** (Release ABV brake & reapply brake)
**o** (Place ABV on HOLD)
**oooo** (release air brakes)
—
—
81
PASSENGER CFR **238**
How long is a **Class 1 BT4** brake test slip valid for?
One calendar day (cannot be permitted to expire enroute)
Class 1 ✅ = expires at 11:59pm tomorrow
Class 1A ✅ = expires at 11:59pm tonight
82
On a **C3/T/TT** coach, what does the **plunger** in the extended (out) position indicate?
***Disc*** brakes APPLIED
83
***FREIGHT***
CFR Part **232** tests:
Class I (QMP & QP) Walking Brake Test
Class III (QMP & QP) Rear End brake test
84
What are the different types of **brake shoes for Diesel Equipment**?
Cast Iron: 1/2 inch
Composite: 3/8 inch
85
When
. Relieving at a crew change point
. Switching cars at a yard
Is a Class II brake test required?
No
86
On a **FREIGHT** train, what does an ***extended piston*** indicate?
Piston extended: Brakes **applied**
Freight piston: 7” - 9”
87
Where is the **ASC Seal** on
1) Eng. 502
2) Cab Car 5004
1) 502 = DM = Lower left hand electrical locker / catwalk
2) Behind the Engineer’s Cab in the locker above the PTC Onboard computer
88
the **”F-end”** on these locomotives:
E10 = long hood
DM = short hood
E15 = long hood
89
**C3**
Cab Car 5,000
Trailer Car **(T)** 4,000 (even)
Trailer/Toilet Car **(TT)** 4,000 (odd)
90
What provides power for the lights, heat, and air conditioning on the C3 equipment and what is the power called?
(4) High Voltage 3 point jumper
HEP
91
What train lined air connection is present on all LIRR equipment?
Brake Pipe
92
Enroute power brake defect
99% - 85% = MAS
84% - 75% = 40MPH or 1/2 MAS (whichever is lower)
74% - 50% = 20 MPH or less
93
**Freight / work cars** must be at
100% operative brake from initial to perform “service/work”
Minimum 85% operative brake from initial terminal ONLY TO REPAIR FACILITY
94
how long can a **ACSES / ASCDT-1** certification be valid for
24 hours (can expire enroute)
95
On Diesels & MUs
COCK & VALVE
Perpendicular = **open**
In-line = **closed**
EXCEPTION:
But when connecting the hoses for the **brake pipe**
Perpendicular = closed
In-line = open
96
How do you know you have 100% operative brakes?
You have **trainline Brake APPLIED** light during Brake Tests
97
on MU, the **Brake Pipe (white needle)** is a trainlined air connection that **controls the Emergency** braking only
98
M3
(low voltage) six jumpers **between married pairs**
2 High Voltage jumpers on the (Southside on B-end)
99
symptom of **local brake problem**
BP is charged
Engineer is in COAST
There is **no Brake Release light**
100
1A Walking brake test on DE/DM
oooo (walk the release)
101
1A Walking brake test on M3
oooo
o
102
1A Walking brake test on M7
oooo
o
oooo
o
103
**M3**
whats the **issue** if you
Don’t observe an emergency brake application after the **second oooo**
**Plugged EMV** in the Head Pair
(deadman dont work)
104
**M7**
whats the **issue** if you dont observe emergency brake application after the **first oooo**?
BPCO closed (in the DOWN position)
105
**Diesel** Passenger Trains Class II brake test buzzers?
OOOO = apply brakes
O = place Automatic Brake Valve to hold
OOOO = release brakes
— = brakes have applied & released (on rear car) & are operative
— = Engineer acknowledges
106
M3 = High 9000
M7 = 7000
M9 = low 9000
107
LOW VOLTAGE is **Train lined** on MUs
HIGH VOLTAGE stays **within married pairs** on MUs
108
Jumper Cables **between married pairs**
M3 = 8 (6 low voltage, 2 high voltage)
M7/M9 = 14
109
How many jumper cables **between married pairs** of cars carry **HIGH VOLTAGE** on MU cars?
M3 = 2 high voltage jumpers on the (southside on B-end)
M7/M9 = 5 high voltage jumpers located on “B” end of every car, in the middle (high five) - **drawbar**
110
Name the *air pressure* that is **trainlined** on MU trains
Brake **Pipe** pressure
111
How many **Truck cutouts (M3)** & **Brake Cylinder cutouts (M7 & M9)** are there per car?
Two, one for each truck
112
Where are the **truck cut outs** on a **M3**?
both “A” car and “B” car.
Ahead of R1 door &
Behind L4 doors
inside and outside
113
Where are the **EP cut outs** on a **M3**?
both “A” car and “B” car.
off cab side ,
middle of the car,
under the **back to back seats**
inside & outside
114
Locate the Service Break Cutouts on an M7
or
Inshot/Service break cutouts on an M9
A & B cars
behind the L1 door &
in front of the R2 door
inside & outside
115
Whats the sequence of communication buzzers for a
**M3** rear end brake test
**oooo**
**oooo** (test Deadman)
**o** (recharge brake pipe, release air brakes, reapply air brakes)
—
—
116
Whats the sequence of communication buzzers for a
**M7 & M9** rear end brake test
**oooo** EBV
**o** (recharge BP, release air brakes, reapply air brakes)
**oooo** (Master Controller)
**o** (recharge brake pipe, release air brakes, reapply air brakes)
—
—
117
Is it permitted to depart a Terminal with an EP cut out cock ***cutted out*** in your regular scheduled passenger train?
No. **Passenger** train MUST have **100% operative brakes** prior to leaving its initial terminal.
118
which position of the **automatic brake valve (ABV)** is always active?
Emergency position
119
C3 Walking Brake Test (1A)
* **Amber** brake applied light is on
* Tread brakes against the wheel / shoe thickness (3/8 composite)
* **Disc brake plungers** are extended
* Brake Pipe & Main Reservoir connected & angle/end cocks are ***open***
120
Why can an **M3 be unable to charge**?
1) Blowing EMV
2) Pulled Emergency Brake Valve
*plugged EMV = you can charge M3
121
M3 **EMV** blows air when
Master Controllers **Emergency position** is used
Master Controller’s **Deadman position** is used
During ASC Penalty
122
In an M3’s **operating pair** only,
If you plug the EMV, you’ll lose the **Deadman** & **Emergency Position** of the MASTER CONTROLLER
you’ll need someone to provide deadman protection
123
in an M3, the **deadman** is built into the Master Controller.
You gotta push it in. If the deadman isn’t triggered (heart attack, engineer doesnt push it), the train goes into an Emergency dump , EMV blows air
124
on an M3, if engineer **cannot get a door closed** light:
1) **Brake Pipe** not charged
2) Tripped door circuit breaker
3) Doors not closed (look for malfunctioning doors, interior door lights, cutting out doors electrically & manually)
125
M3
EMV blows air = MALFUNCTION
Plugging an EMV is troubleshooting.
(brake test now?)
126
M3 necessary **trainline** indicators
**Brake Release light**
(all air & hand brakes are released)
*AIR Brake* = to get Amber light off, cut out EP or truck
*HAND BRAKE* = to get red interior light off, look at G.A.**Red hand brake applied**
*PKO bypass*: gives Engineer a false brake release light
—————————————————
**Door Closed light**
(all doors closed & **brake pipe charged**)
Check for malfunctioning doors, cutting out doors electrically & manually
*Door bypass*: gives Engineer a false door closed light
127
*M3*
***ASC Seal*** location:
“B” car only
“B” end
LOCKER behind the **bathroom** on the ceiling
128
On DIESEL, the **Brake Pipe** controls:
1) Emergency brake
2) Service brake
On MU, the **Brake Pipe** controls:
1) Emergency brake only
129
Where is the **EMV** on an M3?
A car only,
Off-cab side,
Middle of car,
**outside** only
130
Where is the **EMV** on an M7 & M9?
A & B cars,
Behind L1 door,
**Inside** only
131
Unique to M3 **A** Car only:
1) EMV
2) Charging Magnet Valve
3) Auxiliary Inverter
SHARED **A** & **B**
Truck cut out (2)
EP cut out,
Handbrake,
Traction Motor cut out switch, counter relay
132
Unique to M3 **B** Car only:
1) Air Compressor
2) **ASC** seal
3) Bathroom
SHARED **A** & **B**
Truck cut out (2)
EP cut out,
Handbrake,
Traction Motor cut out switch, counter relay
133
Door Bypass:
Gives a false **doors closed light**
Used as last resort when you can’t get a doors closed light
134
PKO bypass
gives a false **brakes released light**
used as a last resort when you can’t get a brakes released light.
PKO bypass should be used with permission as a last resort after the train crew has determined that all air and hand brakes are released.
135
what are the **interior lights** above the engineers can on **M3**?
**Green**: air brakes RELEASED
**Amber**: air brakes APPLIED
**Red**: handbrake applied
136
Exterior **F**-End lights on *M3*
ENGINEERS SIDE:
**Blue**: ASC Operative (cab side)
**White**: Door station energized
**Green**: air brakes released
**Amber**: air brakes applied
**Red**: HANDbrake applied
—————————————————
NON-ENGINEERS SIDE:
**White**: Door station energized
**Green**: air brakes released
**Amber**: air brakes applied
**Red**: HANDbrake applied
137
M3 **DOOR Light**
1) Red: Door open
138
M3 trainline **Door closed** light
1) all doors closed
2) brake pipe charged
139
M3 **Trainline Indicators**
1) **Brake Applied Light**: All air brakes are applied
**2) Brake Release Light**: All air brakes & ***HANDbrakes*** are released
**3) Door Closed Light**: All doors are closed & ***brake pipe charged***
4) **Brake Pipe Gauge**: Only after a proper brake test
140
M3 **ACSES seal**
B car only,
B end,
adjacent to the bathroom
141
M3 only,
Operating pair only,
If you **plug an EMV** what will you lose?
1) Deadman &
2) Emergency position of the Master Controller
youll need someone to provide deadman support
142
all cutouts are inside and outside 😃
except DE/DM (all cutouts outside)
143
**M3**
How would you troubleshoot having no “brake release light” with the brake pipe charged & the master controller in coast (Max brake)
***LOCAL BRAKE PROBLEM***
Walk the train & look for any lights that indicate the air brakes (amber) and handbrakes (red) are applied,
so you can release these brakes
(you want the red & amber lights to turn off) so the train can move
144
how is are **HAND/PARKING Brakes** fail safe?
The parking brake is
1) spring applied
2) air released
145
C3 brake **plungers** = North AND Southside , ground level by side doors
C3 regular truck cutouts = Southside outside by doors L1 & L2, and Lockers 4/6
146
exterior **A**-end lights on C3
*reading- -, writing, arithmetic*
Red (flashing) = handbrakes applied
White = door station energized
Arithmetic = air brakes applied
147
M3 required seals
**Snow brake**
ATC cutout
ACSES cutout
AIU cutout
Door bypass
148
Where are the **truck cut outs** on a **M3**?
A and B cars
Ahead of R1 & behind L4
inside and outside
149
locate the **EP** on an M3
A & B cars,
Off cab side,
**middle of the car**,
under back to back seats,
inside & outside
150
locate the **SBCO (M7)** & **ISCO/SBCO (M9)**
A & B cars,
Ahead of R2 Behind L1
inside & outside
151
how to release STUCK BRAKES on **MU**s
**M3**:
Truck cutout & EP Cutouts
**M7**
SBCO (Service Break CutOuts) & BCCO (Brake Cylinder Cutouts)
**M9**
ISCO/SBCO (Inshot/Service Brake cutout) & BCCO (Brake Cylinder Cutouts)
152
**Preferred** method to release STUCK BRAKES on MUs
**M3**:
EP Cutouts
**M7**
SBCO (Service Break CutOuts)
**M9**
ISCO/SBCO (Inshot/Service Brake cutout)
—————————————————
because these let you retain your emergency brake if these are pulled
153
Where is the **EMV** on M7 & M9
A & B cars
Behind L1 door
Inside only
154
M7 & M9 **Trainline Indicators**
1) Trainline **brake applied**: All air brakes applied
2) Trainline **brake release**: All air brakes & **PARKING brakes** released
3) Door closed light
4) Brake pipe pressure gauge: after a proper brake test
**5) PARKING BRAKE** (M7 & M9)
155
Trainline Brake Applied light on a **charged train**
= All air brakes 100% applied
156
M3
a *lit* (trainline) **door closed light** means
the **train is charged** and all the doors on the train are closed
157
What two lights in the **operating cab** must be lit for the train to take power?
1) **door closed** light
2) **brake release** light
158
**M3 Door Override**
Name Two functions of the **door hold closed** switch
1) Engineer removes control of the doors from the crew
**2) De-energize TWO energized door stations** (M3 only)
159
When performing an ***initial terminal*** **walking brake test** , you must have
a sufficient number of **handbrakes** to prevent the train from rolling away
160
Class I brake test is valid for how long?
1 Calendar Day
and cannot expire enroute
161
**F-end** EXTERIOR lights on **M7 & M9**
Good AW Root Beer
G = brakes release
A = brakes applied
W = door panel energized
R **(flashing)** = ***parking*** brake
B = ATC/ASC
162
*M7*
***ASC Seal*** location
B Car,
**Off-cab side**,
Electrical locker opposite the engineer
(Left electrical locker)
163
*M9*
***ASC Seal*** location
B car,
**Cab side**
Electrical locker behind engineer
(Right electrical locker)
164
Going **Underneath** M7 & M9
**DC LINK DISCHARGE / DCL Shorting Test**
1) Engineer puts **Master Controller in *Emergency Position***
2) Ensure the **High Voltage indicator lights** on the *Auxiliary Inverter* is lit
3) Request removal of 3rd Rail
4) When 3rd rail is confirmed de-energized, **observe High Voltage indicator lights until extinguished**
5) When extinguished, its safe to go under M7 or M9
165
BTTH-1 form = CFR 232
Class 1 Walking Brake Test (FREIGHT)
166
How long is a **Class 1 brake test** valid for on M7 & M9 equipment?
**Passenger**
CFR 238 BT4 slip - 3 hours
***1 calendar day*** - cannot expire enroute
Class 1 ✅ = expires at 11:59pm tomorrow
Class 1A ✅ = expires at 11:59pm tonight
167
plugged EMV = you can charge M3
168
What disrupts an M3 brake test?
A **plugged EMV** (on operating pair)
= The deadman wont work.
169
Two possible causes of an M7 being unable to charge
Blowing EMV (plug it)
Pulled Emergency Brake Valve (reset it)
170
M7 & M9
The brake cylinder (red needle) accurately reflects the condition of the brakes on the **entire** car.
True or False?
FALSE
Brake Cylinder is **JUST** for the “F” end of the car (not the “B” end)
Its only reading for THAT truck (one end = F end), not the whole car
171
**cut outs** (Truck cut outs, EP, SBCO, ISCO, BCCO) are used to
**release stuck brakes** (that are applied),
release brakes
172
**Fire** on M7
What should you Turn off ?
Turn off CB 4 & 5
Traction Control 4 & 5
173
M7 Sealed switches
SAADAASS
ATC Cutout
SSS Cutout
ALE Cutout
Door Bypass Cutout
Snow Brake
Screen Selector
ACSES Cutout
AIU Cutout
174
What two Trainline indicators lights must be lit in order for the Engineer to draw power?
**Trainline BRAKES RELEASED**
(If not lit, look for airbrakes (Amber) **& handbrakes (red flashing)** that are applied so you can **turn off** these brakes / release them)
If not —> PKO BYPASS
—————————————————-
**Trainline DOORS CLOSED**
(If not lit, look for any Door Open (red) to close that door and check door Circuit Breakers.
If not —> DOOR BYPASS
175
Why can’t an M7 charge?
Blowing EMV —> plug it
Pulled Emergency Brake Valve —> reset it
176
what does an M7 **Trainlined Door Closed** lit light mean?
all **doors** are closed
***on M3, add brake pipe is charged
177
M7 & M9
The Brake Cylinder (red needle) accurately reflects the condition of the brakes on the ***entire*** car.
True or false?
False.
The Brake Cylinder is JUST for the ***”F”*** end of the car (not the B-end)
The Brake Cylinder is only reading for THAT TRUCK (one end = F-end), not the whole car
178
What must be done if the **BCCO** is cut out on the *head car* of an M7 or M9?
BCCO: if you cut this out, you also cut out the emergency brakes (BCCO is less preferable).
You can still have handbrakes / parking brakes to use tho
In this case, since the BCCO has been cut out, the emergency brakes have also been disabled.
1) Get customers out of this *head* car.
2) Put a QP stationed at the handbrake or parking brake
3) Perform RUNNING brake test
179
on M7 and M9, what to do if your train loses its **Trainline Door Closed** light en-route?
- Check that all doors are indeed closed (Look for malfunctioning doors via vestibule lights: Red (door open) light), check door Circuit Breaker
_______________________________________
- If an illuminated vestibule light (Red: Door open) is identified that **cannot be fixed** ,
*cut out the doors electrically & manually*
180
FREIGHT Walking Brake Test
you need what two items?
. FRED
. Brake Pipe Guage
181
“This train requires a walking brake test” is said by:
. Special Instructions
. General Notice (GN)
. Timetable
182
on an M3, M7, M9, you can do the **EASY version of the walking brake test** (just looking for the Brake Applied light & Brake Released light **on one side**)
But why can’t you do it for the C3?
on C3, you cannot do the EASY version of the walking break test, since theres no *green* brake release light
183
**Walking brake test** for FREIGHT trains:
WHAT YOURE LOOKING FOR
*making sure things are released*
Look for:
- Shoes up **AWAY** from wheel
- Shoe thickness
- Connections between are good (nothing leaking, loose)
- Handbrakes (off)
- Retaining valve (direct exhaust)
- BPBPCOC (open)
- Piston (in)
184
Troubleshooting a problem where it became necessary to **operate an angle cock or cutout** —> must do a brake test
switching at a yard —> must do a running brake test
185
Interior M7 Indicator lights GAR (SUPER LOCAL)
- Green = air brakes released LOCALLY
- Amber = air brakes applied LOCALLY
- Red (flashing) = parking brake applied LOCALLY
**Both** of these (green) (amber) LOCAL lights must be lit for ***their one respective light*** to be lit on GAWRB
GAWRB is Local (but not super local)
***there are 2 sets of trucks in every car. 2 sets of brakes in every car***
186
M7 **“A”** car unique
- B-end Door Toggle
- Event Recorder
- Battery charger
- Battery
both A & B car:
. EMV
. ***Auxiliary Inverter*** (but its A only in M3
187
M7 **“B”** car unique
- Air Compressor
- ASC Seal
- Bathroom
——
- Charging Magnet Valve (but its “A” car in M3)
——
- ALE Seal (Deadman)
- ACSES Cutout switch
- AIU Cutout switch
188
BCCO (not preferred on M7 & M9) removes all braking ability from that truck
except for the parking brake
189
after troubleshooting, do both brake tests
. Walking
. Class 2 rear end
190
Closed BPCO (down position) is the issue for the first **oooo** for M7/M9
**You can still charge M7 with BPCO closed** (down position)
191
DRUM SWITCH
☑️✖️✖️✖️✖️✖️✖️✖️✖️✖️☑️
First & Last car needs to be in the **isolate** position
192
M7 **PARKING BRAKE indicator**
is opposite of usual
Extended: Parking brakes ***released***
Retracted: Parking brakes ***applied***
193
M7 ***Mechanical*** **Parking Brake Release** 🛞
Gives you one free chance to release parking brakes if there is not enough air to release your parking brake
194
M7 M9 **Door Hold Closed Switch**
removes control of the doors from the crew
*M3: adds De-energizes multiple energized doors stations
195
Walking brake test 1A for C3/DE/DM
- Amber brake applied light is lit
- Tread brakes against the wheel/brake shoe thickness
- **disc brake plungers** are extended (disc brakes are applied)
- Brake Pipe & main reservoir are connected , and end/angle cocks are open
196
Walking brake test on M7 Class 1A
goal: to see the brakes are applied
1) shoe up against wheel
2) shoe thickness
3) Hose connections are good, nothing leaking or fouling
4) **Amber** lights are on (when walking the application)
5) **Green** lights are on (when walking the release)
197
Brakes ***APPLIED***
_______________________________________
**BPBPCOC**: Closed & Duplex Release Rod NOT pulled
**Retaining Valve**: in High Pressure
198
CLOSED **Brake Pipe** angle cock =
brakes *applied* (up to that point)
199
Freight train to work: 100%
Freight train to main track: 85%
200
List 3 possible reasons you would have a **brake application** on cars when
**walking the release** on a Class 1 walking break test (freight)
. Handbrakes applied
. Retaining valve (In High Pressure)
. **closed** ***Brake Pipe*** angle cock (up to that point)
. BPBPCOC closed and Duplex Release Rod **not** pulled
201
M3 has **no** SECO switch
M7 SECO button:
. A & B car
. F-end
. cab side
. outside only
202
name two PRIMARY uses of the electrical output of the **Inverter**
1) Recharge the battery
2) Powers the Air Compressor
203
Why is it necessary to pull the **Emergency Brake** during an **M7** Class 2 brake tests?
To establish **Brake Pipe CONTINUITY**
204
where is the **Parking Brake** on M7/M9?
right behind the Engineer’s head
205
**Tapper Valve** 🔅
*Brake Pipe* pressure is trainlined
Under tappet valve ⬇️
**Low Voltage** electrical door
206
Diesel: Automatic Brake Valve
MU: Master Controller
207
EMERGENCY: a rapid **reduction** in Brake Pipe pressure
208
Brake Pipe Gauge becomes a Trainline Indicator
***only after a proper brake test***
209
When SWITCHING at a YARD
NO REAR END brake test,
but do a **RUNNING brake test**
210
when CHANGING ENDS, do a
class 2 rear end brake test
