Bush Hog 280 manual Torque Specifications, American

Page 21

TORQUE SPECIFICATIONS

 

 

Proper toque for American fasteners used on Bush Hog equipment.

 

 

Recommended Torque in Foot Pounds (Newton Meters).*

AMERICAN

 

 

 

 

 

 

 

Bolt Head Markings

 

 

BOLT DIAMETER

 

 

 

 

 

WRENCH

(IN.) “B” AND

SAE

SAE

SAE

 

 

 

 

SIZE (IN.) “A”

THREAD SIZE

GRADE 2

GRADE 5

GRADE 8

SAE Grade 2

(No Dashes)

SAE Grade 5

(3 Dashes)

Bolt

“B”

Diameter

Wrench

Size “A”SAE Grade 8 (6 Dashes)

7/16

1/4 - 2O UNC

6

(7)

8 (11)

12

(16)

7/16

1/4 - 28 UNF

6

(8)

10

(13)

14

(18)

1/2

5/16 - 18 UNC

11

(15)

17

(23)

25

(33)

1/2

5/16 - 24 UNF

13

(17)

19

(26)

27

(37)

9/16

3/8 - 16 UNC

20

(27)

31

(42)

44

(60)

9/16

3/8 - 24 UNF

23

(31)

35

(47)

49

(66)

5/8

7/16 - 14 UNC

32

(43)

49

(66)

70

(95)

5/8

7/16 - 20 UNF

36

(49)

55

(75)

78 (106)

3/4

1/2 - 13 UNC

49

(66)

76 (103)

106

(144)

3/4

1/2 - 20 UNF

55

(75)

85 (115)

120

(163)

7/8

9/16 - 12 UNC

70

(95)

109

(148)

153

(207)

7/8

9/16 - 18 UNF

79 (107)

122

(165)

172

(233)

15/16

5/8 - 11 UNC

97 (131)

150

(203)

212

(287)

15/16

5/8 - 18 UNF

110

(149)

170

(230)

240

(325)

1-1/8

3/4 - 10 UNC

144

(195)

266

(360)

376

(509)

1-1/8

3/4 - 16 UNF

192

(260)

297

(402)

420

(569)

1-5/16

7/8 - 9 UNC

166

(225)

430

(583)

606

(821)

1-5/16

7/8 - 14 UNF

184

(249)

474

(642)

668

(905)

1-1/2

1 - 8 UNC

250

(339)

644

(873)

909 (1232)

1-1/2

1 - 12 UNF

274

(371)

705

(955)

995 (1348)

1-1/2

1 - 14 UNF

280

(379)

721

(977)

1019

(1381)

1-11/16

1-1/8 - 7 UNC

354

(480)

795 (1077)

1288(1745)

1-11/16

1-1/8 - 12 UNF

397

(538)

890 (1206)

1444

(1957)

1-7/8

1-1/4 - 7 UNC

500

(678)

1120

(1518)

1817

(2462)

1-7/8

1-1/4 - 12 UNF

553

(749)

1241

(1682)

2013

(2728)

2-1/16

1-3/8 - 6 UNC

655

(887)

1470

(1992)

2382

(3228)

2-1/16

1-3/8 - 12 UNF

746 (1011)

1672

(2266)

2712

(3675)

2-1/4

1-1/2 - 6 UNC

870 (1179)

1950

(2642)

3161

(4283)

2-1/4

1-1/2 - 12 UNF

979 (1327)

2194

(2973)

3557

(4820)

METRIC

Wrench

Size “A” 8.8

Bolt

“B”

Diameter

Proper torque for metric fasteners used on Bush Hog equipment.

Recommended torque in foot pounds (newton Meters).*

WRENCH

BOLT

 

 

 

 

 

 

 

SIZE

DIA.

ASTM

ASTM

ASTM

ASTM

(mm) “A”

(mm) “B”

4.6

8.8

9.8

10.9

8

5

1.8

(2.4)

 

5.1

(6.9)

6.5

(8.8)

10

6

3

(4)

 

8.7 (12)

11.1 (15)

13

8

7.3 (10)

 

21.1 (29)

27

(37)

16

10

14.5 (20)

 

42

(57)

53

(72)

18

12

25

(34)

74 (100)

73

(99)

93 (126)

21

14

40

(54)

118 (160)

116

(157)

148

(201)

Numbers appearing on bolt heads indicate ASTM class.

*Use 75% of the specified torque value for plated fasteners. Use 85% of the specificed torque values for lubricated fasteners.

24

16

62

(84)

167

(226)

181 (245)

230

(312)

30

20

122

(165)

325

(440)

 

449

(608)

33

22

 

 

443

(600)

 

611

(828)

36

24

211

(286)

563

(763)

 

778 (1054)

41

27

 

 

821 (1112)

 

1138

(1542)

46

30

418

(566)

1119

(1516)

 

1547

(2096)

20

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Contents Bush HOG Congratulations Retail CUSTOMER’S Responsibility Under the Bush HOG Warranty Table of ContentsDisclaimer of Implied Warranties & Consequential Damages This Limited Warranty Shall not ApplySeries Rotary Cutters Dealer Preparation Check ListImportant Safety Precautions Employee Tractor Operating Instructions EMPLOYERS, Employees and OperationsSection Introduction and Description IntroductionDescription Attaching to Tractor Section Preparation for USEPage Adjusting for Work General SafetyCutting Height Adjustment Section Operating InstructionsSection Maintenance Maintenance Check ListTransporting Slip Clutch Operational Check Blade Holder ASSEMBLY, Removal and InstallationProblem Probable Cause Remedy Slip Clutch AdjustmentPRE-ASSEMBLY Safety Precautions 3-POINT Lift Models 285 Section V AssemblyFront View of Model 287 Lower Hitch Points 3-POINT Lift ModelsQuick Hitch Model SEMI-MOUNT ModelRear Band Installation Front Belting InstallationFront Chain Installation Rear Chain InstallationSafety Decals American Torque SpecificationsModel 287 Quick Hitch Assembly Bush HOG
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