John Deere

OMM139226

Issue A9

Compact Utility Tractor with Gear Transmission

790 Serial No. (190064 - )

Introduction

Safety Signs

Controls

Operating

Replacement Parts

Service Machine Safely

Service Intervals

Service Engine

Service Transmission

Service Electrical

Service Miscellaneous

Troubleshooting

Storing Machine

Assembly

Specifications

Engine Specifications

Electrical System

Fuel System

Drive Train

Hydraulic System

3-Point Hitch

PTO

Fluid Capacities

Ground Speeds

Tires

2WD Front Tire Tread Width

4WD Front Tire Tread Width

2WD and 4WD Rear Tire Tread Width

Dimensions

Weight

Recommended Lubricants

Metric Bolt and Cap Screw Torque Values

Unified Inch Bolt and Cap Screw Torque Values

Warranty

John Deere Service Literature

John Deere Quality Statement

All Manuals Close Window

Specifications


Engine Specifications

Make Yanmar

Model Number 3TNE84-JK

Type Diesel

Gross Horsepower 22.4 kW ((30 hp)

PTO Horsepower 18.6 kW ((25 hp)

Rated Engine Speed 2600 rpm

Operating Range 925-2810 rpm

Engine Torque @ Rated Speed ( 73.4 Nm (54.1 lb-ft)

Displacement 1.5 L ((91.3 cu in.)

Cylinders 3

Bore and Stroke 84 x 90 mm ((3.3 x 3.5 in.)

Compression Ratio 18:1

Lubrication Pressurized

Oil Filter Single Element

Air Cleaner Dry Element

Starting Aid Air Heater

Electrical System

Type 12 Volt

Battery Size (Group 45) 500 Cold Cranking Amps @ -18C

Alternator 20 Amp

Starter Size 1.42 kW ( (1.9 hp)

Fuel System

Fuel Filter Replaceable Element

Fuel See Fuel in the Service Miscellaneous section

Fuel Pump In-Line with Electric Shutoff

Fuel Delivery Direct Injection-Self Bleeding

Fuel Tank Capacity 24 L ((6.3 gal)

Fuel Consumption @ 75% Load (1.3 gal/hr (4.9 L/hr)

Drive Train

Transmission Sliding Gear, 2 Range

Number Of Speeds 8 Forward - 2 Reverse

4WD Selective Control Lever Yes

Capability For 4WD All Ranges

4WD Engagement Mechanical On The Go

Final Drive Spur Gear

Differential Lock Mechanical

Brakes Independent Dry Shoe

Steering Manual-2WD
Power-4WD

Main Clutch Disk Type Single Stage Dry-2WD
Dual Stage Dry-4WD

Clutch Disk Diameter 215 mm ((8.5 in.)

Hydraulic System

Type of System Open Center

Lift Control Type Position

Pump Single Gear (Manual Steering Models)
Dual Gear (Power Steering Models)

Working Pressure 14135 kPa ( (2050 psi)

Pump Capacity (main) @ rated speed 21.1 L/min ( (5.6 gpm)

Pump Capacity (power steering) @ rated speed 16.3 L/min ( (4.3 gpm)

Total Flow of Pumps @ rated speed 37.4 L/min ((9.9 gpm)

3-Point Hitch

Type Category 1

Lift Capacity- (24-in. behind link arms) 370 kg ((815 lb)

PTO

Type Transmission Drive-Single Stage Clutch
Continuous Live-Dual Stage Clutch

Speed (PTO rpm @ rated engine rpm)-Mid 2076 rpm

Speed (PTO rpm @ rated engine rpm)-Rear 540 rpm

Clutch Wet Disk

Brake Mid PTO Only

Fluid Capacities

Fuel Tank 24 L ((6.3 gal)

Cooling System 4.8 L ( (1.25 gal)

Engine Crankcase w/ Filter 4.1 L ((4.3 qt)

Transmission and Hydraulic System 15 L ( (4 gal)

Front Axle Gearcase (4WD) 2.13 L ( (2.25 qt)

Ground Speeds

Travel Speeds at Full Engine RPM, Equipped with 12.4-16 R-1 Rear Tires

Forward Gears

1st Gear 1.3 km/hr ((0.8 mph)

2nd Gear 1.8 km/hr ((1.1 mph)

3rd Gear 2.5 km/hr ((1.6 mph)

4th Gear 4.4 km/hr ((2.7 mph)

5th Gear 5.6 km/hr ((3.5 mph)

6th Gear 7.7 km/hr ((4.8 mph)

7th Gear 11.0 km/hr ((6.8 mph)

8th Gear 19.1 km/hr ((11.8 mph)

Reverse Gears

1st Gear 1.3 km/hr ((0.8 mph)

2nd Gear 5.4 km/hr ((3.4 mph)

Tires

Standard Equipment

Front 6.00-12 R1

Rear 12.4-16 R1

2WD Front Tire Tread Width

Tire Size

Tread

Tire Width

Inside Tire

Outside Tire

4.00-15

969 mm ( (38.1 in.)

126 mm ( (5.0 in.)

853 mm ((33.6 in.)

1035 mm ((40.7 in.)

25 x 8.50-14

978 mm ((38.5 in.)

213 mm ((8.4 in)

765 mm ((30.1 in.)

1192 mm ((46.9 in.)


4WD Front Tire Tread Width

Tire Size

Tread

Tire Width

Inside Tire

Outside Tire

6.00-12

946 mm (( 37.2 in.)

157 mm ((6.2 in.)

789 mm ((31.1 in.)

1103 mm ((43.4 in.)

25 x 8.50-14

978 mm ((38.5 in.)

213 mm ((8.4 in)

765 mm ((30.1 in.)

1192 mm ((46.9 in.)


2WD and 4WD Rear Tire Tread Width

Tire Size

Tread Width

Tire Width

Inside Tire

Outside Tire

12.4-16

1016 mm ( (40 in.)

318 mm ((12.5 in.)

698 mm ((27.5 in.)

1334 mm ((52.5 in.)

13.6-16

1020 mm (( 40.2 in.)

368 mm ((14.5 in.)

651 (mm (25.6 in.)

1388 mm (( 54.6 in.)


Dimensions

Wheelbase 1550 mm ((61 in.)

Overall Length w/ 3-Point Hitch 2823.5 mm ((111.2 in.)

Overall Length w/o 3-Point Hitch 2230.5 mm ((87.8 in.)

Overall Height (To Top of ROPS) 2006.3 mm ((79 in.)

Overall Height (To Top of Hood) 1227.7 mm ((48.1 in.)

Weight

Including ROPS, 3 Pt. Hitch and R1 tires (2WD) 895 kg ((1973 lb)

Including ROPS, 3 Pt. Hitch and R1 tires (4WD) 976 kg ((2151 lb)

Recommended Lubricants

Engine Oil John Deere Plus-50 SAE15W-40 or TORQ-GARD SUPREME SAE5W-30

Grease John Deere NON-CLAY HIGH Temperature EP-JDM J13E4,
NLGI Grade 2

Transmission Oil Low Viscosity HY-GARD (JDM J20D)

MFWD Front Axle Oil John Deere GL-5, SAE 80W90

(Specifications and design subject to change without notice.)

Metric Bolt and Cap Screw Torque Values



Class 4.8

Class 8.8 or 9.8

Lubricateda

Drya

Lubricateda

Drya

Size
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft

M6

4.8

3.5

6

4.5

9

6.5

11

8.5

M8

12

8.5

15

11

22

16

28

20

M10

23

17

29

21

43

32

55

40

M12

40

29

50

37

75

55

95

70

M14

63

47

80

60

120

88

150

110

M16

100

73

125

92

190

140

240

175

M18

135

100

175

125

260

195

330

250

M20

190

140

240

180

375

275

475

350

M22

260

190

330

250

510

375

650

475

M24

330

250

425

310

650

475

825

600

M27

490

360

625

450

950

700

1200

875

M30

675

490

850

625

1300

950

1650

1200

M33

900

675

1150

850

1750

1300

2200

1650

M36

1150

850

1450

1075

2250

1650

2850

2100


DO NOT use these values if a different torque value or tightening procedure is given for a specific application. Torque values listed are for general use only and include a DO NOT use air powered wrenches.

Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical grade.

Fasteners should be replaced with the same grade. Make sure fasteners threads are clean and that you properly start thread engagement. This will prevent them from failing when tightening.



Class 10.9

Class 12.9

Lubricateda

Drya

Lubricateda

Drya

Size
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft

M6

13

9.5

17

12

15

11.5

19

14.5

M8

32

24

40

30

37

28

47

35

M10

63

47

80

60

75

55

95

70

M12

110

80

140

105

130

95

165

120

M14

175

130

225

165

205

150

260

109

M16

275

200

350

225

320

240

400

300

M18

375

275

475

350

440

325

560

410

M20

530

400

675

500

625

460

800

580

M22

725

540

925

675

850

625

1075

800

M24

925

675

1150

850

1075

800

1350

1000

M27

1350

1000

1700

1250

1600

1150

2000

1500

M30

1850

1350

2300

1700

2150

1600

2700

2000

M33

2500

1850

3150

2350

2900

2150

3700

2750

M36

3200

2350

4050

3000

3750

2750

4750

3500


When bolt and nut combination fasteners are used, torque values should be applied to the NUT instead of the bolt head.

Tighten toothed or serrated-type lock nuts to the full torque value.

a "Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. "Dry" means plain or zinc plated without any lubrication.

Unified Inch Bolt and Cap Screw Torque Values



Grade 1
Grade 2b

Lubricateda

Drya

Lubricateda

Drya

Size
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft

1/4

3.7

2.8

4.7

3.5

6

4.5

7.5

5.5

5/16

7.7

5.5

10

7

12

9

15

11

3/8

14

10

17

13

22

16

27

20

7/16

22

16

28

20

35

26

44

32

1/2

33

25

42

31

53

39

67

50

9/16

48

36

60

45

75

56

95

70

5/8

67

50

85

62

105

78

135

100

3/4

120

87

150

110

190

140

240

175

7/8

190

140

240

175

190

140

240

175

1

290

210

360

270

290

210

360

270

1-1/8

470

300

510

375

470

300

510

375

1-1/4

570

425

725

530

570

425

725

530

1-3/8

750

550

950

700

750

550

950

700

1-1/2

1000

725

1250

925

990

725

1250

930


DO NOT use these values if a different torque value or tightening procedure is given for a specific application. Torque values listed are for general use only and include a DO NOT use air powered wrenches.

Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical grade.



Class 10.9

Class 12.9

Lubricateda

Drya

Lubricateda

Drya

Size
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft

1/4

9.5

7

12

9

13.5

10

17

12.5

5/16

20

15

25

18

28

21

35

26

3/8

35

26

44

33

50

36

63

46

7/16

55

41

70

52

80

58

100

75

1/2

85

63

110

80

120

90

150

115

9/16

125

90

155

115

175

130

225

160

5/8

170

125

215

160

215

160

300

225

3/4

300

225

375

280

425

310

550

400

7/8

490

360

625

450

700

500

875

650

1

725

540

925

675

1050

750

1300

975

1-1/8

900

675

1150

850

1450

1075

1850

1350

1-1/4

1300

950

1650

1200

2050

1500

2600

1950

1-3/8

1700

1250

2150

1550

2700

2000

3400

2550

1-1/2

2250

1650

2850

2100

3600

2650

4550

3350


Fasteners should be replaced with the same grade. Make sure fasteners threads are clean and that you properly start thread engagement. This will prevent them from failing when tightening.

Tighten toothed or serrated-type lock nuts to the full torque value.

a"Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. "Dry" means plain or zinc plated without any lubrication.
b"Grade 2" applies for hex cap screws (not hex bolts) up to 152 mm (6-in.) long. "Grade 1" applies for hex cap screws over 152 mm (6-in.) long, and for all other types of bolts and screws of any length.