EMD D78 Traction Motor Spare Parts

 

 

 

Part Number

 QTY

Description

 -1

40005625

1

MOTOR ASSEMBLY .. Traction-D78-Shippingassembly (Pinionnotincluded)

-2

8283810

1

STATOR ASSEMBLY .. Traction motor

-3

9554744

1

ARMATURE AND BEARING ASSEMBLY .. Traction motor

-4

8499804

1

SLINGER .. Grease-Pinionend

-5

8417569

1

PLATE .. Partition-Pinionend

-6

8417565

1

SEAL .. Steel-Outer-Pinionend

-7

8277388

6

SCREW .. Socketcap3/8-16x3/4-Torqueto30-35ft./lbs.

-8

40047197

12

BRUSH .. Carbon - Traction motor

-9

271613

8

BOLT .. Hexhead3/4-10x2-1/2

-10

8133335

8

WASHER .. Lock 3/4

-11

8209519

1

LATCH ASSEMBLY .. Traction motor commutator upper cover

-12

8300016

1

LATCH .. Cover

-13

8300017

2

LINK .. Latchtoframe

-14

108630

2

PIN .. Cotter-1/8

-15

8300057

1

PIN .. Special-3/8 - Link to a frame

-16

8352037

3

TUBING .. Heat shrink - 3-inch length

-17

8351902

1

CABLE ASSEMBLY .. Stator - Traction motor

-18

9326091

AR

CABLE .. AWG8 -IIE - Poly olefin - Gray - 500 feet (Approx 0.58 inches required)

-19

40015621

1

LUG .. Terminal - 5/8

-20

8140346

1

LUG .. Terminal - 1/2

-21

8117405

1

COVER .. Air inlet - Suspension side

-22

8137701

6

BOLT ASSEMBLY .. Hex head 3/8-16x5/8 - Air inlet cover mounting - Includes lock washer

-23

8204665

1

COVER ASSEMBLY .. Commutator - Large lower

-24

8400649

1

GASKET .. Cover - Felt

-25

179881

6

BOLT .. Hexhead 1/2-13x1

-26

103323

10

WASHER .. Lock 1/2

-27

179879

4

BOLT .. Hexhead 1/2-13x3/4

-28

8300013

1

COVER ASSEMBLY .. Commutator - Smalllower

-29

8079571

1

COVER .. Commutator end - Lower

-30

8395503

1

GASKET .. Cover - Felt

-31

8242193

6

BOLT .. Drilled hex-head 1-3/8-6x3

-32

8495681

8

WASHER .. Special - Flat 2.125 O.D. x 1.430 I.D. x 0.354 inches thick

-33

8348620

2

PLUG .. Pipe-Drain - 1/2PT

-34

9333024

2

FILLER ASSEMBLY .. Oil

-35

8478477

4

SHIM .. Axle cap - 0.010

-36

8204661

1

COVER ASSEMBLY .. Traction motor commutator end - Upper

-37

8400561

1

GASKET .. Cover - Felt

-38

9543732

4

PAD .. 1/2x1/2x3/8

-39

8035496

7

BOLT .. Hexhead 1-8x2

-40

8137697

6

WASHER .. Lock 1 inch

-41

9095753

2

BOLT .. Drilled hex-head 1-3/8x6 - Support bearing cap mounting - Pinion end - Lower

-41

9572880

2

BOLT .. Drilled hex-head 1-3/8x7-1/8 - Support bearing cap mounting - Pinion end - Lower (optional for service)

-42

40056595

AR

COMPOUND .. Sealing - 1 carton containing 270 feet

 

 

 

D78 Traction Motor Stator

 

 

 

Part Number

QTY

Description

-1

8283810

1

STATOR ASSEMBLY  .. Traction motor - Includes narrow window support bearing caps, axle shield, and commutator covers

-2

8283811

1

FRAME ASSEMBLY  .. Traction motor stator - Includes narrow window support bearing caps

-3

8248937

4

COIL ASSEMBLY .. Interpole - Utex No. 8255719

-4

8206527

AR

SHIM .. Interpole coil - 0.029

-5

9563194

8

WASHER .. Insulating

-6

8208116

4

SHIELD .. Mainpole

-7

8248968

1

COIL ASSEMBLY .. Main field - No. 4 - Axle side - Utex No. 8255717

-8

8102831

4

POLEASSEMBLY .. Main - Nos. 1, 2, 3, and 4 coils

-9

8355727

1

CABLE ASSEMBLY .. Brush holder cross-connection - Replaces 9565454

-10

8355728

1

CABLE ASSEMBLY .. “A” and brush holder connector

-11

8417729

4

BRUSH HOLDER ASSEMBLY .. Traction motor

-12

8496443

4

BLOCK .. Brush holder - Traction motor - Outer

-13

271661

4

BOLT .. Hexhead 7/8-9x3-1/4

-14

8137717

4

WASHER ..Lock7/8

-15

8141062

1

CABLE ASSEMBLY .. “AA” - 87 inches long

-16

8160907

28

WASHER .. Lock1 - 1/8

-17

220089

12

NUT .. Hex 1-1/8-7

-18

8355745

2

CLAMP .. Insulated 1-1/16

-19

8035145

10

NUT .. Lock 5/16-18

-20

120393

10

WASHER .. Flat 5/16

-21

272565

16

BOLT .. Hexhead 1-1/8-7x3-3/4 - Interpole coil mounting

-22

9549132

8

CLAMP .. Insulated 7/8

-23

180181

4

BOLT .. Hexhead 1/2-13x2

-24

8137718

4

WASHER .. Lock 1/2

-25

120378

4

NUT .. Hex 1/2-13

 

 

 

 

Part Number

QTY

Description

-26

8276861

8

BAFFLE ASSEMBLY .. Outer - Air - Aluminum

-27

8355704

1

CABLE ASSEMBLY .. Interpole coil - No. 1 to No. 2 - 18 inches

-28

8395904

AR

TAPE .. Adhesive - Glass - 60 yards (Approx 0.77 feet required)

-29

9531800

4

STRAP .. Traction motor lead - Stainless steel

-30

9531799

4

SEAL .. Lead cable strap

-31

8351344

4

INSULATION .. Webbing - Lead strap

-32

8206883

4

GROMMET .. Cable - Cables “A”, “AA”, “F”, and “FF”

-33

40016007

1

KIT .. Cable cleat

-34

8109922

4

CONNECTOR .. Clasp

-35

9565451

1

CABLE ASSEMBLY .. Interpole coil - No. 3 to No. 4 - 17 inches

-36

8351147

1

CABLE ASSEMBLY .. Interpole coil - No. 1 to No.4 - 17 inches

-37

8248967

1

COIL ASSEMBLY .. Main field - No.3 - Top - Utex No. 8255716

-38

8248966

1

COIL ASSEMBLY .. Main field - No.2 - Suspension side - Utex No. 8255715

-39

8141064

1

CABLE ASSEMBLY .. Lead - “FF” - 77 inches long

-40

8141063

1

CABLE ASSEMBLY .. Lead - “F” - 82 inches long

-41

8276860

8

BAFFLE ASSEMBLY .. Inner - Air - Aluminum

-42

8248965

1

COIL ASSEMBLY .. Main field - No. 1- Bottom - Utex No. 8255714

-43

8329770

1

KIT .. Traction motor stator rewind - Includes Ref. Nos. 3, 6, 7, 37, 38, and 42 in quantities indicated (not shown)

 

 

 

Traction Motor Stator - FRAME

 

 

 

 

Part Number

 QTY

 Description

-1

8283811

1

FRAME ASSEMBLY .. Traction motor stator

-2

8212162

1

SCREEN .. Top - Axle side - Pinion end

-3

8212161

1

SCREEN .. Top - Suspension side - Pinion end

-4

8351145

1

SUPPORT .. Cable - Top - Welded

-5

8300003

2

PIN .. Button - 3/8x1-3/8 - Cover retaining

-6

8351502

1

PLATE .. Wear - Traction motor suspension - Upper - Maganese

-7

8436596

1

PLATE .. Wear - Traction motor suspension - Lower - Maganese

-8

9319949

2

PLATE ASSEMBLY .. Stud - Cable clamp - Welded

-9

8300157

4

BLOCK .. Brush holder - Inner

-10

8032452

AR

SHIM .. Brush holder block - 0.015 inch thick

-11

8109178

AR

SHIM .. Brush holder block - 0.032 inch thick

-12

8109179

AR

SHIM .. Brush holder block - 0.058 inch thick

-13

8109180

AR

SHIM .. Brush holder block - 0.003 inch thick

-14

8109181

AR

SHIM .. Brush holder block - 0.007 inch thick

-15

8109182

AR

SHIM .. Brush holder block - 0.010 inch thick

-16

8283987

1

CAP ASSEMBLY .. Axle - Commutator end - Support bearing - Replaces 8276832

-17

9333024

1

FILLER ASSEMBLY .. Oil

-18

8348620

1

PLUG .. Pipe - Drain - 1/2 MPT

-19

9534978

1

CAP ASSEMBLY .. Axle - Pinion end - Support bearing - Replaces 9520927

-20

9333024

1

FILLER ASSEMBLY .. Oil

-21

8348620

1

PLUG .. Pipe-Drain-1/2MPT

Support bearing caps are semi-finished. All caps require line boring on application. Pinion caps also require drilling a 1-1/16 inch diameter hole and machining to a 4-inch diameter dimension of the gear case arm.

-22

8478477

4

SHIM .. Axlecap - 0.010

-23

8110556

9

STUD .. 5/16-18x3/4 - Cable clamp - Welded - (not shown)

-24

8166258

2

KEY .. Traction motor support bearing - 1/2x1/2x5-5/16

 

 

 

 Traction Motor Armature And Bearing

 

 

 

Part Number

QTY

Description

    -1

9554744

ARMATURE AND BEARING ASSEMBLY .. Traction motor - D78

-2

9554680

ARMATURE ASSEMBLY .. Traction motor - D78 - Utex 9550679

-3

40080001

BEARING .. Roller - P.E.

-4

40087004

BEARING .. Ball - Deep groove - C.E.

-5

9094445

CAP .. Bearing cover - Pinion end

-6

9083296

CAP .. Bearing cover - Commutator end

-7

8408477

HOUSING ASSEMBLY .. Commutator end - Bearing

-8

8300137

HOUSING ASSEMBLY .. Pinion end - Bearing

-9

9094444

COVER ASSEMBLY .. Bearing - Pinion end

-10

8496324

COVER ASSEMBLY .. Bearing - Commutator end

-11

9571085

GASKET .. Cover - Pinion end

-12

9571079

GASKET .. Cap - Pinion end

-13

9571082

GASKET .. Cover - Commutator end

-14

9571083

GASKET .. Cap - Commutator end

-15

271566

BOLT .. Hexhead 5/8-11x3

-16

271571

BOLT .. Hexhead 5/8-11x4-1/4

-17

8133334

14 

WASHER .. Lock 5/8

-18

8249820

AR 

GREASE .. Bearing -114 pound drum (Approx 2 pounds required)

-19

8333591

INSERT .. Bearing - Antichurn

-20

40028670

SPACER .. Ballbearing

-21

8168504

RETAINER .. Bearing - Commutator end

-21A

8479431

PLATE .. Retainer (not shown)

-21B

181427

BOLT .. Hexhead 1/2-20x1 (not shown)

-22

9420945

 6

BOLT .. Lock 7/16-20x1

 

 

 

Traction Motor Armature

 

 

 

 

Part Number

 QTY

 Description

-1

9554680

1

ARMATURE ASSEMBLY .. Traction motor - D78 - Utex 9550679

-2

115321

AR

SCREW .. Hex socket cup point 5/16-18x5/16 - Weight mounting to bell

-3

8300143

AR

WEIGHT .. Balance - Traction motor armature - Pinion end - Copper

-3

8306706

AR

WEIGHT .. Balance - Pinion end - Aluminum (Optional)

-4

271556

8

BOLT .. Hexhead 5/8-11x1-1/4 - End bell to coil support mounting

-5

8133334

8

WASHER .. Lock 5/8

-6

8300100

1

BELL .. End - Traction motor armature

-7

8499803

1

SEAL .. Inner - Pinion end

-8

8141081

1

CORE ASSEMBLY .. Armature - (For armature coreless the shaft, use 8141251)

-9

8307430

1

SHAFT .. Traction motor armature - Standard

-10

40034413

1

COMMUTATOR ASSEMBLY .. Traction motor armature

-11

9523246

AR

WEIGHT .. Balance - Commutator end

-11

9583247

AR

WEIGHT .. Balance - Commutator end

-11

9523248

AR

WEIGHT .. Balance - Commutator end

-11

9523249

AR

WEIGHT .. Balance - Commutator end

-12

8499802

1

SPACER .. Inner - Commutator end

-13

9083297

1

COLLAR .. Inner - Commutatorend

-14

8356910

1

SEAL .. Extruded - Commutator to armature - Round - 0.335 diameter x42-1/8 inches long (not shown)

-15

9552758

1

SEAL .. Extruded - Commutator to armature - Rectangle - 5/32 diameter x 42-1/2 inches long (not shown)

-16

8351140

1

KIT .. Armature rewind (not shown)

 

 

 

Traction Motor Commutator

 

 

 

 

Part Number

QTY

Description

-1

40034413

1

COMMUTATOR ASSEMBLY .. Traction motor armature

-2

40032513

1

RINGASSEMBLY .. V-Front

-3

40032514

1

RINGASSEMBLY .. V-Rear

-4

8300061

1

RING .. V-Commutator - Rear

-5

8356910

1

SEAL .. Extruded - Commutator to armature - Rectangle - 5/32 diameter x 42-1/2 inches

-6

8353693

8

WASHER .. Special

-7

8300056

8

BOLT .. Hex socket head 7/8-9x7 - Commutator clamp

-8

8328940

1

SPIDER .. Commutator

-9

9567193

1

STRIP .. Insulation

 

 

 

Traction Motor Brush Holder

 

 

There are a total of 4 Brush Holder Assemblies per Stator Assembly.

 

 

Part Number

 QTY

Description

-1

8417729

1

BRUSH HOLDER ASSEMBLY .. Traction motor

-2

8417687

1

BRUSH HOLDER .. Traction motor

-3

8417727

2

BOOT .. Rubber stud insulator

-4

8417728

2

STUD ASSEMBLY .. Insulator - Brush holder - Standard

-4

8427800

2

STUD ASSEMBLY .. Insulator - 0.002 oversize (Optional)

-5

8338116

3

CELL ASSEMBLY .. Brush spring

-6

8303075

6

SLIDE .. Finger

-7

8392987

2

BOLT ASSEMBLY .. Hexhead 5/16-18x3/4 - Brush terminal - Includes lock and plain washer

-8

142486

1

PIN .. Groove - 1/8x3/4 - Spindle retaining

-9

8296216

1

SPINDLE .. Rod - Brush holder cell

-10

40047197

3

BRUSH .. Carbon - Traction motor

 It is not recommended to mix brands (manufacturers) of carbon brushes with in an assembly.

-11

REF

AR

COMPOUND .. Insulator boot - 6 ounce tube (8345495 not available from EMD - not shown)

 

 

Stator Cable Assemblies

 

 

The following cable assemblies are not illustrated. The quantities shown are for one Traction Motor.

 

 

Part Number

 QTY

 Description

-1

8248937

1

COIL ASSEMBLY .. Interpole - Utex 8255719

-2

8206526

1

INTERPOLE

-3

9323929

1

SHIELD .. Interpole coil

-4

8206527

AR

SHIM .. Interpole coil

-5

9563194

1

WASHER .. Insulation - Coil

-6

8355704

1

CABLE ASSEMBLY .. Interpole coil - No. 1 to No. 2 - 18 inches

-7

8133497

1

LUG .. Terminal - Straight - Crimp

-8

8351144

1

LUG .. Terminal - One way - 30° angle - Crimp

-9

9336899

AR

CABLE .. 1100/24-100 foot (Approx. 1-1/2 feet required)

-10

9565451

1

CABLE ASSEMBLY .. Interpole coil - No. 3 to No. 4 - 17 inches

-11

8133497

1

LUG .. Terminal - Straight - Crimp

-12

8351144

1

LUG .. Terminal - One way - 30° angle - Crimp

-13

9336899

AR

CABLE .. 1100/24-100 foot (Approx. 1-1/2 feet required)

-14

8209186

AR

TAPE .. Glass and silicone (Approx. 1/2 foot required)

-15

8351147

1

CABLE ASSEMBLY .. Interpole coil - No. 1 to No. 4 - 17 inches

-16

8133497

2

LUG .. Terminal - Straight - Crimp

-17

9336899

AR

CABLE .. 1100/24 - 100 foot (Approx. 1-1/2 feet required)

-18

8355727

1

CABLE ASSEMBLY .. Brush holder connector - Replaces 9565454

-19

9522940

1

LUG .. Terminal - Two way - 90° angle - 550/24 and 1100/24 cable

-20

9522941

1

LUG .. Terminal - One way - 90° angle - 550/24 cable

-21

8351144

1

LUG .. Terminal - One way - 30° angle - Crimp

-22

40051295

AR

CABLE .. 1100/24 -1000 foot (Approx. 1-1/4 feet required)

-23

9336895

AR

CABLE .. 550/24 - XIIE-Gray - 100 foot (Approx. 3-1/2 feet required)

-24

8395904

AR

TAPE .. Fiberglass-60yards(Approx.13feetrequired)

-25

8355873

AR

TAPE .. Silicon rubber - Red - 20 yards (Approx. 13 feet required)

-26

8141063

1

CABLE ASSEMBLY .. "F" - 6 feet 10 inches long

-27

40015999

1

LUG .. Terminal - Special

-28

40015786

AR

CABLE .. 1325/24 - 1000 foot (Approx. 7 feet required)

-29

8141062

1

CABLE ASSEMBLY .. "AA" - 7 feet 3 inches long

-30

40015998

1

LUG .. Terminal - Special

-31

40015786

AR

CABLE .. 1325/24 - 1000 foot (Approx. 7-1/2 feet required)

-32

8141064

1

CABLE ASSEMBLY .. "FF" - 6 feet 5 inches long

-33

40015998

1

LUG .. Terminal - Special

-34

40015786

AR

CABLE .. 1325/24 - 1000f oot (Approx. 6-1/2 feet required)

-35

8355728

1

CABLE ASSEMBLY .. Crossed connector "A"

-36

40016000

1

LUG .. Terminal - Special

-37

9522943

1

LUG .. Terminal - Oneway - 90° angle - 550/24 cable

-38

40015786

AR

CABLE .. 1325/24 - 1000 foot (Approx. 7-1/2 feet required)

-39

9336895

AR

CABLE .. 550/24 - XIIE-Gray - 100 foot (Approx. 3-1/2 feet required)

-40

8395904

AR

TAPE .. Fiberglass - 60 yards (Approx. 13 feet required)

-41

8355873

AR

TAPE .. Silicon rubber - Red - 20 yards (Approx. 13 feet required)

 


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