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Section 8: Torque Values Chart 

Table of Contents

4/9/19

AP-SG2572 & AP-SG2584- Skid Steer Grader 303-458MK

20

Section 8: Torque Values Chart

Torque Values Chart for Common Bolt Sizes

Bolt Head Identification

Bolt Head Identification

Bolt Size 

(inches)

Grade 2

Grade 5

Grade 8

Bolt Size

(Metric)

Class 5.8

Class 8.8

Class 10.9

in-tpi

 1

N · m 

2

ft-lb 

3

N · m

ft-lb

N · m

ft-lb

mm x pitch 

4

N · m

ft-lb

N · m

ft-lb

N · m

ft-lb

1/4" - 20

7.4

5.6

11

8

16

12

M 5 X 0.8

4

3

6

5

9

7

1/4" - 28

8.5

6

13

10

18

14

M 6 X 1

7

5

11

8

15

11

5/16" - 18

15

11

24

17

33

25

M 8 X 1.25

17

12

26

19

36

27

5/16" - 24

17

13

26

19

37

27

M 8 X 1

18

13

28

21

39

29

3/8" - 16

27

20

42

31

59

44

M10 X 1.5

33

24

52

39

72

53

3/8" - 24

31

22

47

35

67

49

M10 X 0.75

39

29

61

45

85

62

7/16" - 14

43

32

67

49

95

70

M12 X 1.75

58

42

91

67

125

93

7/16" - 20

49

36

75

55

105

78

M12 X 1.5

60

44

95

70

130

97

1/2" - 13

66

49

105

76

145

105

M12 X 1

90

66

105

77

145

105

1/2" - 20

75

55

115

85

165

120

M14 X 2

92

68

145

105

200

150

9/16" - 12

95

70

150

110

210

155

M14 X 1.5

99

73

155

115

l215

160

9/16" - 18

105

79

165

120

235

170

M16 X 2

145

105

225

165

315

230

5/8" - 11

130

97

205

150

285

210

M16 X 1.5

155

115

240

180

335

245

5/8" - 18

150

110

230

170

325

240

M18 X 2.5

195

145

310

230

405

300

3/4" - 10

235

170

360

265

510

375

M18 X 1.5

220

165

350

260

485

355

3/4" - 16

260

190

405

295

570

420

M20 X 2.5

280

205

440

325

610

450

7/8" - 9

225

165

585

430

820

605

M20 X 1.5

310

230

650

480

900

665

7/8" - 14

250

185

640

475

905

670

M24 X 3

480

355

760

560

1050

780

1" - 8

340

250

875

645

1230

910

M24 X 2

525

390

830

610

1150

845

1" - 12

370

275

955

705

1350

995

M30 X 3.5

960

705

1510

1120

2100

1550

1-1/8" - 7

480

355

1080

795

1750

1290

M30 X 2

1060

785

1680

1240

2320

1710

1-1/8" - 12

540

395

1210

890

1960

1440

M36 X 3.5

1730

1270

2650

1950

3660

2700

1-1/4" - 7

680

500

1520

1120

2460

1820

M36 X 2

1880

1380

2960

2190

4100

3220

1-1/4" - 12

750

555

1680

1240

2730

2010

1

 in-tpi = nominal thread diameter in inches-threads per inch

1-3/8" - 6

890

655

1990

1470

3230

2380

2

 N· m = newton-meters

1-3/8" - 12

1010

745

2270

1670

3680

2710

3

 ft-lb= foot pounds

1-1/2" - 6

1180

870

2640

1950

4290

3160

mm x pitch = nominal thread diameter in millimeters x thread 

pitch

1-1/2" - 12

1330

980

2970

2190

4820

3560

Torque tol 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.

5.8

8.8

10.9

Summary of Contents for AP-SG2572

Page 1: ...Kit in French Language please see your Kubota dealer Read the Operator s Manual entirely When you see this symbol the subsequent instructions and warnings are serious follow without exception Your lif...

Page 2: ...rdered the weights and measurements are no longer accurate for your machine Update the record by adding the machine weight and measurements provided in the Specifications Capacities Section of this ma...

Page 3: ...plication 7 Using This Manual 7 Terminology 7 Definitions 7 Owner Assistance 7 Serial Number 7 Further Assistance 7 Section 1 Assembly Set up 8 Skid Steer Tractor Requirements 8 Torque Requirements Fo...

Page 4: ...ropriate App on your smart phone open the App point your phone on the QR code and take a picture Dealer QR Locator The QR code on the left will link you to available dealers for Kubota products Refer...

Page 5: ...steer and controls from the driver s seat only Never dismount from a moving tractor skid steer or leave machine unattended with engine running Do not allow anyone to stand between tractor skid steer a...

Page 6: ...can settle suddenly leak down or be lowered accidentally If it is necessary to work under the equipment securely support it with stands or suitable blocking beforehand Use properly grounded electrical...

Page 7: ...r hearing loss Wear suitable hearing protection such as earmuffs or earplugs Operating equipment safely requires the operator s full attention Avoid wearing headphones while operating equipment Keep R...

Page 8: ...n seriously injure persons animals plants soil and property Inhaling smoke from any type of chemical fire is a serious health hazard Store or dispose of unused chemicals as specified by the chemical m...

Page 9: ...Important Safety Information 4 9 19 5 This page left blank intentionally...

Page 10: ...arest Kubota dealer To find your nearest dealer visit our dealer locator at www landpride com 3 Some new equipment installed during repair requires safety labels to be affixed to the replaced componen...

Page 11: ...enance and safe operating practices will help you get years of satisfactory use from this attachment Application The Kubota AP SG25 Series Skid Steer Graders come in 72 model AP SG2572 and 84 model AP...

Page 12: ...Operator s Manual before leaving the operator s seat 1 Reduce engine speed and shut off all power to the attachment 2 Park tractor and attachment on solid level ground 3 Lower attachment until it is...

Page 13: ...hitch top angle bars 4 Rotate top of skid loader tilt arms slightly forward 5 Position top of skid loader mounting plate under the grader top angled bars Slowly raise loader arms up until mounting pl...

Page 14: ...Complete steps 1 to 6 under Initial Preparation 2 Restart skid steer or tractor and operate control lever to slowly lower skid shoes 1 onto shims 5 3 Shut skid steer or tractor down properly Refer to...

Page 15: ...rt blocks 3 5 Shut skid steer or tractor down properly and dismount 39343 Adjust Shank Height Refer to Figure 2 3 1 Complete steps 1 to 5 under Initial Preparation 2 Press top of shank spring retainer...

Page 16: ...d maintenance to keep it operating properly Never bypass or modify a safety device Do not operate traveling across a steep incline where the skid steer or tractor could roll over Consult your machine...

Page 17: ...htly above the bucket storage lugs on the grader 3 Tilt bucket cutting edge down until cutting edge is beneath the storage lugs but not resting on the grader frame 4 Move bucket forward until bucket c...

Page 18: ...ng within the last 50 feet of a pass you will want to raise the Grading Scraper up enough to feather excess material out to the end If grading freshly tilled soil and the skid shoes are digging into t...

Page 19: ...parts where paint is worn or scratched to prevent rust Ask your Kubota dealer for aerosol touch up paint Paint is also available in touch up quarts and gallon sizes 6 Replace all damaged or missing d...

Page 20: ...Skid shoes should be inspected frequently and at the end of each season Replaced skid shoes when material thickness is less than 1 8 at any point If one end is wearing faster than the other the skid...

Page 21: ...in cm 15 1 2 39 4 Side panel length in m 50 1 27 Side panel thickness in mm 1 4 6 Thick with 2 3 4 70 formed edges Skid shoe construction in mm 3 8 10 Thick with a formed bevel to prevent gouging Str...

Page 22: ...er shanks Allows shanks to be adjusted to two depths or above ground Ripping Only Functionality Frame geometry gives the user the option to solely use straight shanks reducing horsepower requirements...

Page 23: ...certain grader hitch is properly attached before lifting grader Shanks are breaking Making too sharp of a turn with shanks in the ground Don t make sharp turns with shanks in the ground Replace broken...

Page 24: ...16 X 2 145 105 225 165 315 230 5 8 11 130 97 205 150 285 210 M16 X 1 5 155 115 240 180 335 245 5 8 18 150 110 230 170 325 240 M18 X 2 5 195 145 310 230 405 300 3 4 10 235 170 360 265 510 375 M18 X 1 5...

Page 25: ...Section 8 Torque Values Chart Table of Contents 4 9 19 AP SG2572 AP SG2584 Skid Steer Grader 303 458MK 21 This page left blank intentionaly...

Page 26: ...e been misused or damaged by accident or lack of normal maintenance or care or which has been repaired or altered in a way which adversely affects its performance or reliability or which has been used...

Page 27: ...resentations and warranties whether express or implied including but not limited to warranties of merchantability and fitness for a particular purpose and Kubota shall not be liable for any damages wh...

Page 28: ...sion Telephone 1175 S Guild Ave Lodi CA 95240 209 334 9910 Central Division Telephone 14855 FAA Blvd Fort Worth TX 76155 817 571 0900 Northern Division Telephone 6300 at One Kubota Way Groveport OH 43...

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