Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual 50940736A - PDF DOWNLOAD

Yanmar (P/N 50302806) 4TNV98-ZNMS(F-R) Engine For Gehl RT185 Mustang/Manitou 1850RT Track Loaders Parts Manual 50940736 Rev. A 12/21

Introduction For your safety and continued proper operation, use only genuine XPRT® Genuine Parts.

Schematics

When ordering service parts, specify the correct part number, full description, quantity required, the unit model number and serial number. The model and serial number decal for this unit are located on the left chassis upright.

Hydraulic and electrical schematics are located in the operator’s manual and service manual.

Manitou Americas reserves the right to make changes or improvements in the design or construction of any part of the unit without incurring the obligation to install such changes on any previously delivered units.

Abbreviations

Purchase equivalent, quality XPRT tires for your loader. Contact your dealer for replacement tire information. Replacement batteries are not provided by Manitou Americas.

Battery specifications are listed in Electrical section where the battery is shown. ALL REPLACEMENT BATTERIES MUST BE PURCHASED LOCALLY.

How to Use This Manual “Right” and “Left” are determined from a position sitting on the seat and facing forward.

Unless otherwise indicated, all parts page graphics are shown as viewed from the front left. If the view is from a different perspective, a directional arrow on the lower left corner will identify the front of the machine.

Items shown in the parts list that do not have part numbers are shown for reference purposes only and are NOT available for purchase.

Dimensions are in inches unless otherwise specified.

Refer to the abbreviations table to the right for various fastener descriptions. Standard hardware torque values are provided at the end of this manual. For parts requiring non-standard torque values, the correct torque value will appear on the parts page graphic or parts list next to the corresponding item number.

A AR ASSY CB CP CS CYL DIA FHCS FOPS G GR HB HLN HN HP HYD INS LN LT LW M MM/mm N/A N•m NPT OS ROPS RT SHCS SLTD SN SQ TOPS US V W/ W/O

Ampere As Required Assembly Carriage Bolt Cotter Pin Cap Screw (Hexagon Head) Cylinder Diameter Flat Head Cap Screw Falling Object Protective Structure Grams Grade Hex Bolt Hex Lock Nut Hex Nut High Pressure Hydraulic Insert Lock Nut Left Lock Washer Meter or Meters Millimeter Not Available, Not Applicable Newton meter National Pipe Thread Oversized Roll Over Protective Structure Right Socket Head Cap Screw Slotted Serial Number or Slotted Nut Square Tip Over Protective Structure Undersized Volt With Without

Cylinder Block Gear Housing Flywheel Housing & Oil Pump Cylinder Head & Bonnet Intake Manifold Exhaust Manifold Camshaft & Driving Gear Crankshaft & Piston Lub. Oil System Cooling Water System Fuel Injection Pump Governor Fuel Injection Valve Fuel Line Starter Gaskets Appendix A:Pages Index Appendix B:Parts Index

1 3 5 7 10 13 15 17 19 21 23 26 29 31 33 35 37 38

Cylinder Block

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

1

Ite m

Part No.

Name

Qty

1

197827

BLOCK ASSY/CYLINDER

1

4

186486

PLUG 55

1

5

425-34722

PLUG

1

6

186491

BOLT METAL CAP

10

9

186493

BUSH CAMSHAFT

1

10

425-34783

SPRING PIN 6 X 12

2

11

50295401

PLUG R03

1

12

50295401

PLUG R03

1

13

50295401

PLUG R03

1

14

425-34726

PLUG 30

8

24

186494

BEARING ASSY THRUST

2

27

186485

BOLT HEAD

18

28

186513

GASKET CYLINDER HEAD

1

29

186635

MAIN BEARING SET

5

32

197591

MAIN BEARING US=0.25MM

5

35

197592

BEARING/THRUST OS=0.25MM

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

2

Gear Housing

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

3

Ite m

Part No.

Name

Qty

1

188573

PARALLEL PIN 8 X 16

4

3-2

186680

HOUSING, GEARS

1

4

186543

PUMP ASSY LUB.OIL

1

15

138139

STUD BOLT

4

16

138100

O-RING

1

17A

50291162

SEAL

1

18

186607

O-RING 1A P-7.0

1

19

186612

PACKING 3075

1

20

425-34733

BOLT M8 X 16 PLATED

1

21

425-34746

BOLT M8 X 20 PLATED

3

22

425-34747

BOLT M8 X 45 PLATED

3

23

138141

NUT

4

24

425-34740

FILLER CAP

1

25

425-34745

O-RING 1A P-32.0

1

26

186487

COVER F.I. PUMP

1

27

186466

BOLT M 8X 70 PLATED

1

28

425-34733

BOLT M8 X 16 PLATED

1

29

425-34805

BOLT M8 X 40 PLATED

5

33

50295400

COVER ASSY/GEAR CASE

1

35

186664

SEAL/OIL DOUBLE STRIP

1

36

186489

COVER ASSY

1

37

186490

SPONGE

1

38

186466

BOLT M 8X 70 PLATED

6

39

425-34733

BOLT M8 X 16 PLATED

3

40

425-34805

BOLT M8 X 40 PLATED

5

43

137947

CAP/LUB OIL SUPPLY

1

44

138154

GASKET/LIQUID, 150G

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

4

Flywheel Housing & Oil Pump

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

5

Ite m

Part No.

Name

Qty

1

188573

PARALLEL PIN 8 X 16

2

2

197590

COVER ASSY/FLYWHEEL

1

4

425-34756

FILLER CAP

1

5

186622

BOLT M10X 35 PLATED

9

6

186623

BOLT M10X 70 PLATED

4

7

197620

SEAL/OIL

1

8

197753

PAN ASSY/LUB OIL

1

9

425-36121

PLUG/DRAIN

1

11

138113

SEAL WASHER

1

12

425-34729

BOLT M8 X 12 PLATED

16

44

138154

GASKET/LIQUID, 150G

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

6

Cylinder Head & Bonnet

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

7

Ite m

Part No.

Name

Qty

1

186519

LIFTER ENGINE

2

2

425-34733

BOLT M8 X 16 PLATED

4

3

186406

SEAT A VALVE BRIDGE

8

4

197622

HEAD ASSY/CYLINDER

1

8

186602

PLUG 1/4

1

9

50295401

PLUG R03

4

10

425-34779

PLUG 40

1

11

186520

INTAKE VALVE

8

12

186521

VALVE(EXH

8

13

186522

VALVE SPRING

16

14

425-35188

SPACER

16

15

197472

SEAL/VALVE STEM (EXH)

8

16

425-35191

SEAL

8

17

186529

BRIDGE ASSY VALVE

8

19

425-34791

NUT M8 X P-1.0

8

20

186411

SCRWE VALVE BRIDGE

8

21

186410

GUIDE VALVE BRIDGE

8

22

425-35189

RETAINER

16

24

186533

GUIDE VALVE

16

25

186337

PROTECTOR NOZZLE

4

26

425-34796

SEAL RING

4

27

186534

RETAINER F.I.VALVE

4

28

197603

FLANGE BOLT/RETAINER

4

29

425-34776

O-RING 1A P-12.0

4

30

186314

BOLT 8X80

2

31

186528

SHAFT ASSY

1

32

186523

SHAFT ROCKER ARM

1

33

186524

SUPPORT A

3

34

186525

SUPPORT B

2

35

186401

WAVE WASHER

8

36

186530

ARM ASSY ROCKER

4

38

188596

SCREW/VALVE

4

39

425-34791

NUT M8 X P-1.0

4

40

186531

ARM ASSY ROCKER

4

42

188596

SCREW/VALVE

4

43

425-34791

NUT M8 X P-1.0

4

44

186535

PEDESTAL RETAINER

4

45

186624

STUD M 8X 22 PLATED

2

46

425-34805

BOLT M8 X 40 PLATED

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

8

Ite m

Part No.

Name

Qty

47

425-34838

BOLT M8 X 60 PLATED

4

48

425-34838

BOLT M8 X 60 PLATED

2

49

138140

NUT

2

50

425-34740

FILLER CAP

1

51

197621

BONNET ASSY

1

52

197601

BAFFLE PLATE

1

53

197602

BAFFLE

1

54

186518

BAFFLE

1

55

186388

DIAPHRAGM BREATHER

1

56

186389

CENTER PLATE

1

57

186390

PLATE BREATHER

1

58

186391

SPRING DIAPHRAGM

1

60

197698

GASKET/BONNET

1

61

186335

PLUG

1

62

197779

CLIP

2

63

186598

SCREW 5 X 10 TAPPING

6

64

186598

SCREW 5 X 10 TAPPING

6

65

186615

BOLT M6 X 12 PLATED

2

66

425-34775

KNOB

4

67

425-34776

O-RING 1A P-12.0

4

68

425-34745

O-RING 1A P-32.0

1

69

138154

GASKET/LIQUID, 150G

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

9

This page intentionally left blank

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

10

Intake Manifold

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

11

Ite m

Part No.

Name

Qty

1

186538

PACKING/INT.MANIFOLD

1

2

197624

MANIFOLD CMP/INTAKE

1

3

197624

MANIFOLD CMP/INTAKE

1

4

425-34780

STUD M6 X 20 PLATED

2

5

425-34747

BOLT M8 X 45 PLATED

6

6

425-34800

BOLT M8 X 80 PLATED

4

7

197450

GASKET

1

8

425-36318

PREHEATER GASKET

1

9

197705

HEATER/AIR

1

10

197451

BEND

1

11

425-34805

BOLT M8 X 40 PLATED

2

12

186618

BOLT M 8X 90 PLATED

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

12

Exhaust Manifold

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

13

Ite m

Part No.

Name

Qty

1

197469

MANIFOLD/EXHAUST

1

2

50250105

STUD

2

3

425-36128

EXHAUST MANIFOLD GASKET

1

4

197462

BOLT M8X90

6

5

425-36249

BOLT M8 X 22

4

6

138512

STUD BOLT M8X20

2

7

138140

NUT

2

8

197626

PIPE (EGR CMP)

1

9

197627

GASKET/EGR PIPE

1

10

197807

BOLT M10X30 PLATED

2

11

138140

NUT

2

12

50282639

VALVE, EGR

1

13

197629

GASKET (EGR-V IN)

1

14

197630

GASKET (EGR-V OUT)

1

15

197807

BOLT M10X30 PLATED

1

16

138522

BOLT M10 X 95 PLATED

1

17

138104

Gasket

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

14

Camshaft & Driving Gear

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

15

Ite m

Part No.

Name

Qty

1

425-34808

TAPPET

8

2

186539

PUSH ROD

8

3

197610

CAMSHAFT ASSY

1

4

425-34656

BEARING THRUST

1

6

138097

GEAR/CAMSHAFT

1

7

425-34810

KEY 7X14

1

8

425-34733

BOLT M8 X 16 PLATED

2

9

138020

SHAFT/GEAR IDLE

1

10

197597

GEAR ASSY/IDLE

1

13

425-34813

BUSHING, IDLE GEAR

1

14

425-34748

BOLT M8 X 55 PLATED

3

15

186579

BOLT

4

16

197605

GEAR/FI PUMP

1

17

186590

FLANGE

1

18

186596

SPRING WASHER 18

1

19

186626

NUT M18 LOCK

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

16

Crankshaft & Piston

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

17

Ite m

Part No.

Name

Qty

1

197598

CRANKSHAFT COMP

1

3

50295402

GEAR/CRANKSHAFT

1

4

137957

PIN/PARALLEL

1

5

137958

PIN/PARALLEL

1

6

425-34810

KEY 7X14

1

7

186663

BOLT/V-PULLEY 35

1

8

186585

WASHER

1

9

186683

V-PULLEY, CRANKSHAFT

1

10

186611

O-RING 1A S-53.0

1

11

137956

BOLT/FLYWHEEL

6

12

186578

FLYWHEEL ASSY

1

14

186499

GEAR RING

1

15

197632

PISTON ASSY

4

17

197631

RING SET/PISTON

4

21

186343

PIN PISTON

4

22

197783

CIRCLIP 30

8

23

186500

ROD ASSY CONNECTING

4

26

186501

BOLT ROD

8

27

186502

METAL ASSY CRANKPIN

4

29

197596

BUSH/PISTON PIN

4

30

197595

BEARING/PIN US=0.25MM

4

32

197828

PISTON W/RING OS=1.25

4

34

197829

RING SET OS=0.25

4

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

18

Lub. Oil System

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

19

Ite m

Part No.

Name

Qty

1

197710

GUIDE/DIPSTICK

1

2

197607

DIPSTICK

1

3

197683

DIPSTICK

1

4

425-34827

O-RING 1A P-10A

1

5

425-34733

BOLT M8 X 16 PLATED

1

6

186302

STUD LUB.OIL FILTER

1

7

195568

CARTRIDGE/FILTER/ENGINE OIL

1

8

138100

O-RING

1

9

197743

PIPE ASSY/L. OIL INLET

1

14

425-34729

BOLT M8 X 12 PLATED

1

15

425-34733

BOLT M8 X 16 PLATED

1

16

178673

OIL PRESSURE SWITCH

1

17

197633

PIPE ASSY/LUB OIL

1

19

186421

SUPPORT PIPE

1

21

186468

BOLT ASSY JOINT

2

22

425-34750

WASHER 8/SEAL

2

23

186600

JOINT BOLT 3

2

24

425-34750

WASHER 8/SEAL

2

25

425-34729

BOLT M8 X 12 PLATED

1

281

425-34750

WASHER 8/SEAL

2

29

425-34729

BOLT M8 X 12 PLATED

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

20

Cooling Water System

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

21

Ite m

Part No.

Name

Qty

1

186684

PUMP ASSY, WATER

1

11

425-36113

GASKET/WATER PUMP

1

12

425-35165

BOLT M6 X 30 PLATED

2

13

425-34748

BOLT M8 X 55 PLATED

5

14

186685

PULLEY

1

15

138132

BOLT M10 X 18 PLATED

4

16

197702

CASE ASSY/THERMOSTAT

1

17

197635

THERMOMETER

1

19

186564

COVER THERMOSTAT

1

21

425-36114

GASKET/THERMOSTAT

1

22

186370

GASKET THERMOSTAT

1

23

186371

THERMOSTAT

1

25

425-35959

SEAL WASHER 12S

1

26

138123

PLUG NPT 3/8 STEEL

2

27

188732

BOLT M6 X 20 PLATED

4

28

425-36319

GASKET, THERMOSTAT HOUSING

1

29

425-34727

PACKING 8

1

30

425-34729

BOLT M8 X 12 PLATED

1

31

425-34838

BOLT M8 X 60 PLATED

3

32

270970

DRAIN PLUG

1

33

425-34851

PLUG

1

34

197459

SWITCH/THERMO 111

1

35

160427

SEAL

2

36

197636

PIPE ASSY/WATER A

1

39

197793

CLAMP 12

2

40

197637

PIPE ASSY/WATER B

1

43

197793

CLAMP 12

2

44

241477

BELT/ALTERNATOR

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

22

Fuel Injection Pump

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

23

Ite m

Part No.

Name

Qty

1

197835

INJECTION PUMP ASSY

1

9

197754

KEY 5X19

1

12

186590

FLANGE

1

18

197772

STOPPER

1

19

197770

O-RING

1

20

197770

O-RING

1

21

197640

VALVE ASSY/DELIVERY

4

30

186678

SPRING

4

31

50295403

HOLDER/DELIVERY

4

52

197773

PLUG

1

53

197608

PLUG

1

54

198129

PK (BARREL PLUG)

4

55

50282658

PLUG

1

56

197599

PACKING/PLUG

1

57

50282654

LIFTER

1

58

50282635

TIMER SET

1

59

50282636

TIMER ASSY

1

62

50282656

O-RING, 1011

1

63

50282625

BACKUP RING

1

64

50282626

O RING

1

65

198131

PACKING/1020

1

66

50282666

RING, BACKUP T2 P 15

1

68

50282627

SPRING, TIMER

1

69

50282628

CAP, TIMER

1

71

197477

VALVE/SOLENOID

1

74

50282657

PACKING,TIMER

1

95

50282659

PISTON

1

96

50282655

SPRING, ACTUATOR

1

97

50282660

PLUG

1

98

425-35959

SEAL WASHER 12S

1

99

192294

WASHER/SEAL 18

1

100

425-35174

PLUG 22

1

102

50284174

O-RING

1

103

192299

O-RING 4E S42

1

105

425-35959

SEAL WASHER 12S

2

106

186596

SPRING WASHER 18

1

107

50282664

PARALLEL PIN 5X14

2

108

50295404

NUT/GOVERNOR WEIGHT

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks ECU software update is required when replacing this part. Refer to the Service Manual for details.

24

Ite m

Part No.

Name

Qty

109

186607

O-RING 1A P-7.0

1

110

198131

PACKING/1020

1

111

197800

O-RING

1

112

425-35263

BOLT M6 X 10 PLATED

1

113

425-35705

BOLT

4

116

197816

BOLT M10X45

4

117

186626

NUT M18 LOCK

1

120

197643

HARNESS/CSD

1

121

197643

HARNESS/CSD

1

122

197510

CAP/RUBBER

1

123

192292

JOINT

1

124

197644

BRACKET/CSD

1

125

192290

JOINT

1

127

192295

PUMP ASSY/FEED

1

128

192296

O-RING (FEED P INNER)

1

129

192298

JOINT/PIPE

1

130

425-35959

SEAL WASHER 12S

1

131

425-34968

SPRING WASHER 5

1

132

186615

BOLT M6 X 12 PLATED

1

133

197817

NUT M5

1

134

197818

PLUG 16

1

136

197639

RETAINER (FOP)

1

137

425-34746

BOLT M8 X 20 PLATED

3

138

425-34760

BOLT M8 X 30 PLATED

3

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

25

This page intentionally left blank

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

26

Governor

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

27

Ite m

Part No.

Name

Qty

19

197488

NUT/GOVERNOR WEIGHT

1

22

197767

SENSOR

1

23

197760

GEAR/SENSOR

1

24

425-34935

PACKING 12

1

25

425-35174

PLUG 22

1

26

197797

O-RING 1A S-48.0

1

27

197805

BOLT M6X25 PLATED

10

28

425-34765

BOLT M8 X 25 PLATED

3

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

28

Fuel Injection Valve

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

29

Ite m

Part No.

Name

Qty

1

197830

FUEL INJECTOR (RDG)

4

2

197645

NOZZLE ASSY

4

5

425-34903

NUT

4

9

425-34666

SPRING, NOZZLE

4

10

425-34905

RETAINER, SPRING

4

11

425-34906

PLATE, STOP

4

12

188447

PIN

8

13

188448

SHIM PACK

4

25

186407

PIPE SEAL

4

26

137962

BRACKET

2

27

425-35452

RETAINER, INJECTOR PIPE

1

30

186473

BOLT M4 X 14 HEX SCKT

2

32

197648

PIPE ASSY/INJECTION

1

33

197649

PIPE ASSY/INJECTION

1

34

197650

PIPE ASSY/INJECTION

1

35

197651

PIPE ASSY/INJECTION

1

36

425-34781

NUT M6

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

30

Fuel Line

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

31

Ite m

Part No.

Name

Qty

1

186467

BRACKET FILTER

1

2

193024

FILTER/FUEL

1

3

425-34760

BOLT M8 X 30 PLATED

2

4

186478

PIPE ASSY FUEL

1

5

425-34916

CLAMP 12

2

6

138107

PROTECTOR/FUEL PIPE

1

7

425-35451

PIPE

1

8

197746

PIPE ASSY/FUEL

1

9

425-34916

CLAMP 12

2

10

197500

PIPE/FUEL OIL

1

11

188691

TUBE

1

12

137953

CLAMP

1

13

186554

PIPE ASSY F.O.RETURN

1

14

186430

JOINT BOLT M6

5

15

186431

PACKING FUEL RETURN

5

16

197647

PIPE/FUEL RETURN

1

17

197508

CORRUGATED TUBE

1

18

186464

CLAMP 9

2

20

186432

HOSE JOINT 4

1

21

425-34750

WASHER 8/SEAL

1

22

186308

PUMP ASSY FUEL FEED

1

231

198139

SEPARATOR ASSY

1

251

203822

FILTER ELEMENT

1

261

203821

CUP

1

27

425-34744

O-RING 1A P-16.0

1

281

203827

O-RING

1

29

203823

DRAIN PLUG

1

30

203824

BREATHER PLUG

1

31

203825

BREATHER SEAL

1

32

203826

FLOAT

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

32

Starter

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

33

Ite m

Part No.

Name

Qty

1

194316

STARTER/ENG/4TNV98

1

2

197716

ARMATURE ASSY

1

5

197717

COIL ASSY/FIELD

1

6

197718

SCREW/POLE CORE SET

4

7

197719

O-RING

1

8

197720

BRUSH

2

9

50282649

COVER, REAR

1

10

50282650

HOLDER, BRUSH

1

11

197723

SPRING/BRUSH

1

12

197724

BRUSH ( - )

2

13

197725

SWITCH ASSY/MAGNETIC

1

14

50282651

HOUSING, GEARS

1

15

197727

RETAINER/BEARING

1

16

197728

SHIFT LEVER SET

1

17

197729

COVER ASSY/DUST

1

18

197730

THROUGHT BOLT

2

19

197731

BOLT M6X20

4

20

197732

SCREW M4X10

2

21

50295405

PINION ASSY

1

22

138057

CLUTCH ASSY

1

23

137924

BEARING/BALL

2

24

138058

SHAFT/PINION

1

25

137930

STOPPER KIT/PINION

1

29

425-35916

COVER

1

30

197444

BOLT M6X37

2

31

188748

BOLT/M12X25 PLATED

2

32

193206

RELAY/20AMP

2

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

34

Gaskets

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

35

Ite m

Part No.

Name

Qty

2

186513

GASKET CYLINDER HEAD

1

3

138100

O-RING

2

4

138101

O-RING

1

5

186607

O-RING 1A P-7.0

1

6

186612

PACKING 3075

1

7

425-34745

O-RING 1A P-32.0

2

8

138127

O-RING

1

9

138113

SEAL WASHER

1

10

197472

SEAL/VALVE STEM (EXH)

8

11

425-35191

SEAL

8

12

186337

PROTECTOR NOZZLE

4

13

425-34796

SEAL RING

4

14

425-34776

O-RING 1A P-12.0

8

15

197698

GASKET/BONNET

1

16

186538

PACKING/INT.MANIFOLD

1

17

197450

GASKET

1

18

425-36318

PREHEATER GASKET

1

19

425-36128

EXHAUST MANIFOLD GASKET

1

20

197627

GASKET/EGR PIPE

1

21

197629

GASKET (EGR-V IN)

1

22

197630

GASKET (EGR-V OUT)

1

23

138104

Gasket

1

24

186611

O-RING 1A S-53.0

1

25

425-34827

O-RING 1A P-10A

1

26

425-34750

WASHER 8/SEAL

9

27

425-36113

GASKET/WATER PUMP

1

28

425-36114

GASKET/THERMOSTAT

1

29

186370

GASKET THERMOSTAT

1

30

425-35959

SEAL WASHER 12S

1

31

425-36319

GASKET, THERMOSTAT HOUSING

1

32

425-34727

PACKING 8

1

33

160427

SEAL

2

34

186431

PACKING FUEL RETURN

5

35

138091

HONE/FLEX

1

36

138154

GASKET/LIQUID, 150G

1

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

Remarks

36

Appendix A:Pages Index Camshaft & Driving Gear Cooling Water System Crankshaft & Piston Cylinder Block Cylinder Head & Bonnet Exhaust Manifold Flywheel Housing & Oil Pump Fuel Injection Pump Fuel Injection Valve Fuel Line Gaskets Gear Housing Governor Intake Manifold Lub. Oil System Starter

15 21 17 1 7 13 5 23 29 31 35 3 26 10 19 33

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

37

Appendix B:Parts Index 137924 137930 137947 137953 137956 137957 137958 137962 138020 138057 138058 138091 138097 138100 138101 138104 138107 138113 138123 138127 138132 138139 138140 138141 138154 138512 138522 160427 178673 186302 186308 186314 186335 186337 186343 186370 186371 186388 186389 186390 186391 186401 186406 186407 186410 186411 186421 186430 186431 186432 186464 186466 186467 186468 186473 186478

34 34 4 32 18 18 18 30 16 34 34 36 16 4, 20, 36 36 14, 36 32 6, 36 22 36 22 4 9, 14, 14 4 4, 6, 9, 36 14 14 22, 36 20 20 32 8 9 8, 36 18 22, 36 22 9 9 9 9 8 8 30 8 8 20 32 32, 36 32 32 4, 4 32 20 30 32

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

186485 186486 186487 186489 186490 186491 186493 186494 186499 186500 186501 186502 186513 186518 186519 186520 186521 186522 186523 186524 186525 186528 186529 186530 186531 186533 186534 186535 186538 186539 186543 186554 186564 186578 186579 186585 186590 186596 186598 186600 186602 186607 186611 186612 186615 186618 186622 186623 186624 186626 186635 186663 186664 186678 186680 186683 186684

2 2 4 4 4 2 2 2 18 18 18 18 2, 36 9 8 8 8 8 8 8 8 8 8 8 8 8 8 8 12, 36 16 4 32 22 18 16 18 16, 24 16, 24 9, 9 20 8 4, 25, 36 18, 36 4, 36 9, 25 12 6 6 8 16, 25 2 18 4 24 4 18 22

38

186685 188447 188448 188573 188596 188691 188732 188748 192290 192292 192294 192295 192296 192298 192299 193024 193206 194316 195568 197444 197450 197451 197459 197462 197469 197472 197477 197488 197500 197508 197510 197590 197591 197592 197595 197596 197597 197598 197599 197601 197602 197603 197605 197607 197608 197610 197620 197621 197622 197624 197626 197627 197629 197630 197631 197632 197633

22 30 30 4, 6 8, 8 32 22 34 25 25 24 25 25 25 24 32 34 34 20 34 12, 36 12 22 14 14 8, 36 24 28 32 32 25 6 2 2 18 18 16 18 24 9 9 8 16 20 24 16 6 9 8 12, 12 14 14, 36 14, 36 14, 36 18 18 20

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

197635 197636 197637 197639 197640 197643 197644 197645 197647 197648 197649 197650 197651 197683 197698 197702 197705 197710 197716 197717 197718 197719 197720 197723 197724 197725 197727 197728 197729 197730 197731 197732 197743 197746 197753 197754 197760 197767 197770 197772 197773 197779 197783 197793 197797 197800 197805 197807 197816 197817 197818 197827 197828 197829 197830 197835 198129

22 22 22 25 24 25, 25 25 30 32 30 30 30 30 20 9, 36 22 12 20 34 34 34 34 34 34 34 34 34 34 34 34 34 34 20 32 6 24 28 28 24, 24 24 24 9 18 22, 22 28 25 28 14, 14 25 25 25 2 18 18 30 24 24

39

198131 198139 203821 203822 203823 203824 203825 203826 203827 241477 270970 425-34656 425-34666 425-34722 425-34726 425-34727 425-34729 425-34733 425-34740 425-34744 425-34745 425-34746 425-34747 425-34748 425-34750 425-34756 425-34760 425-34765 425-34775 425-34776 425-34779 425-34780 425-34781 425-34783 425-34791 425-34796 425-34800 425-34805 425-34808 425-34810 425-34813 425-34827 425-34838 425-34851 425-34903 425-34905 425-34906 425-34916 425-34935 425-34968 425-35165 425-35174 425-35188 425-35189 425-35191 425-35263 425-35451

24, 25 32 32 32 32 32 32 32 32 22 22 16 30 2 2 22, 36 6, 20, 20, 20, 22 4, 4, 4, 8, 16, 20, 20 4, 9 32 4, 9, 36 4, 25 4, 12 16, 22 20, 20, 20, 32, 36 6 25, 32 28 9 8, 9, 36 8 12 30 2 8, 8, 8 8, 36 12 4, 4, 8, 12 16 16, 18 16 20, 36 9, 9, 22 22 30 30 30 32, 32 28 25 22 24, 28 8 8 8, 36 25 32

(50940736A) Yanmar (iT4) 4TNV98-ZNMS(F-R) Engine Parts Manual

425-35452 425-35705 425-35916 425-35959 425-36113 425-36114 425-36121 425-36128 425-36249 425-36318 425-36319 50250105 50282625 50282626 50282627 50282628 50282635 50282636 50282639 50282649 50282650 50282651 50282654 50282655 50282656 50282657 50282658 50282659 50282660 50282664 50282666 50284174 50291162 50295400 50295401 50295402 50295403 50295404 50295405

30 25 34 22, 24, 24, 25, 36 22, 36 22, 36 6 14, 36 14 12, 36 22, 36 14 24 24 24 24 24 24 14 34 34 34 24 24 24 24 24 24 24 24 24 24 4 4 2, 2, 2, 8 18 24 24 34

40

O-Ring Table — Male Boss Fittings "B" "A"

Fitting Thread Size

Diameter "A"

Diameter "B"

Part Number

9/16 - 18 3/4 - 16 7/8- 14

0.468 0.644 0.755

0.078 0.087 0.097

055897 055896 055898

1-1/16 - 12 1-5/16 - 12 1-5/8 - 12 A/C #6 A/C #8 A/C #10

0.924 1.171 1.475 0.312 0.437 0.562

0.116 0.116 0.118 0.453 0.578 0.703

048953 058674 077970 138777 138778 138779

O-Ring Table — Air Conditioning Fittings A/C Fitting

"B" "A"

A/C #6 A/C #8 A/C #10

Diameter "A"

Diameter "B"

Part Number

0.312 0.437 0.562

0.453 0.578 0.703

138777 138778 138779

O-Ring Table — Face Seal Fittings "B" "A"

Fitting Thread Size

Tube O.D.

Diameter "A"

Thickness "B"

Part Number

9/16 - 18 11/16 - 16 13/16- 16

1/4 3/8 1/2

0.301 0.364 0.489

0.070 0.070 0.070

50300165 50300166 50300167

1-14 - 14 1-13/16 - 12 1-7/16 - 12

5/8 3/4 1

0.614 0.739 0.926

0.070 0.070 0.070

135124 137205 50300168

Use these torque values when tightening hydraulic, fuel, or coolant adapters (fittings).

SAE "O-Ring" Boss (Steel) Adapters Size

Pounds-Force Foot (lb.-ft.)

Dash

Fractional

Minimum

Maximum

-3 -4 -5 -6 -8 -10 -12 -14 -16 -20 -24

3/16 1/4 5/16 3/8 1/2 5/8 3/4 7/8 1 1-1/4 1-1/2

8 14 18 24 50 72 125 160 200 210 270

10 16 20 26 60 80 135 180 220 280 360

Newton Meter (N-m) Minimum

Maximum

11 19 24 32 68 97 170 216 271 285 366

13 21 27 35 81 108 183 244 298 380 488

JIC 37º and 45º (Machined or Flared) Adapters Size

Pounds-Force Foot (lb.-ft.)

Dash

Fractional

Minimum

Maximum

-4 -5 -6 -8 -10 -12 -16 -20 -24 -32

1/4 5/16 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2 2

10 13 17 34 50 70 94 124 156 219

11 15 19 38 56 78 104 138 173 243

Newton Meter (N-m) Minimum

Maximum

13 17 23 46 68 95 127 168 211 297

15 20 26 51 78 106 141 187 234 329

Use these torque values when tightening hardware—excluding: lock nuts, thread-forming, self-tapping, and metal screws—unless otherwise specified.

Metric Coarse-Pitch Thread—(DRY) M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 Metric Coarse-Pitch Thread—(OILED) M6-1 M8-1.25 M10-1.5 M12-1.75 M14-2 M16-2

Metric Fine-Pitch Thread—(DRY) M8X1.0 M10X1.0 M10X1.25 M12X1.25 M12X1.5 M14X1.5 M16X1.5 M18X1.5 M20X1.5 M22X1.5 M24X2.0 M27X2.0 M30X2.0

All torque values are in Foot-Pounds and Newton Meters (Nm).

DIN 912, DIN 931, DIN 933, etc...

8.8

10.9

12.9

4.1 (5.5) 6 (8) 7 (10) 7 (10) 10 (14) 13 (17) 18 ( 25) 26 (35) 31 (42) 33 (45) 48 (65) 59 (80) 64 (87) 81 (110) 108 (147) 100 (135) 133 (180) 170 (230) 155 (210) 203 (275) 258 (350) 207 (280) 302 (410) 354 (480) 302 (410) 420 (570) 509 (690) 406 (550) 575 (780) 686 (930) 524 (710) 738 (1000) 878 (1190) 767 (1040) 1092 (1480) 1305 (1770) 1047 (1420) 1482 (2010) 1770 (2400)

DIN 7984 8.8

10.9

4 (5) 6.3 (8.5) 15 (20) 30 (40) 51 (69) 81 (110) 125 (170) 181 (245) 251 (340) 339 (460) 435 (590) 642 (870) 885 (1200)

5 (7) 9 (12) 22 (30) 44 (59) 74 (100) 118 (160) 184 (250) 254 (345) 361 (490) 487 (660) 620 (840) 922 (1250) 1254 (1700)

All torque values are in Foot-Pounds and Newton Meters (Nm).

DIN 912, DIN 931, DIN 933, etc...

8.8

10.9

12.9

6 (8) 14 (19) 28 (38) 48 (65) 77 (103) 118 (160)

8 (11) 20 (27) 39 (53) 68 (91) 108 (146) 166 (224)

10 (14) 24 (33) 47 (63) 82 (111) 131 (177) 200 (271)

All torque values are in Foot-Pounds and Newton Meters (Nm).

DIN 912, DIN 931, DIN 933, etc...

8.8

10.9

12.9

18 (25) 27 (37) 32 (43) 37 (50) 55 (75) 65 (88) 36 (49) 52 (71) 61 (83) 64 (87) 96 (130) 111 (150) 61 (83) 92 (125) 107 (145) 100 (135) 148 (200) 173 (235) 155 (210) 229 (310) 266 (360) 232 (315) 332 (450) 391 (530) 325 (440) 465 (630) 538 (730) 435 (590) 620 (840) 723 (980) 546 (740) 789 (1070) 922 (1250) 811 (1100) 1143 (1550) 1328 (1800) 1106 (1500) 1586 (2150) 1844 (2500)

DIN 7984 8.8

10.9

16 (22) 32 (43) 31 (42) 55 (75) 53 (72) 89 (120) 133 (180) 199 (270) 277 (375) 369 (500) 465 (630) 679 (920) 959 (1300)

24 (32) 48 (65) 46 (62) 81 (110) 77 (105) 129 (175) 195 (265) 284 (385) 391 (530) 524 (710) 664 (900) 959 (1300) 1364 (1850)

Use these torque values when tightening hardware—excluding: lock nuts, thread-forming, self-tapping, and metal screws—unless otherwise specified.

NOTE: All torque values are in foot-pounds (lb.-ft.), except those marked with asterisks (*), which are in inch-pounds (lb.-in.). To convert lb.-ft. to Newton Meter (Nm)—metric—torque values, multiply the lb.-ft. value by 1.355, or for inch pounds, multiply the lb.-in. value by 0.113.

Unified National Thread

Grade 2 Dry

Oiled

Dry

Oiled

Dry

Oiled

8-32 8-36 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16/24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16 7/8-9 7/8-14 1-8 1-14

19* 20* 27* 31* 66* 76* 11 12 20 23 32 36 35 40 55 60 75 85 130 150 125 140 190 210

14* 15* 21* 23* 50* 56* 9 9 15 17 24 27 35 40 55 60 75 85 130 150 125 140 190 210

30* 31* 43* 49* 9 10 17 19 30 35 50 55 75 90 110 120 150 180 260 300 430 470 640 710

22* 23* 32* 36* 75* 86* 13 14 23 25 35 40 55 65 80 90 110 130 200 220 320 630 480 530

41* 43* 60* 68* 12 14 25 25 45 50 70 80 110 120 150 170 220 240 380 420 600 660 900 1000

31* 32* 45* 51* 9 10 18 20 35 35 55 60 80 90 110 130 170 180 280 320 460 500 680 740

Grade 5

Grade 8

* Value shown is in pound-force inch (lb.-in.)—inch pounds.

For Support and Service, Contact Your Dealer

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