Bush Hog ATH 900 manual Torque Specifications, SAE Grade Dashes

Page 18

AMERICAN

Bolt Head Markings

TORQUE SPECIFICATIONS

Proper toque for American fasteners used on Bush Hog equipment.

Recommended Torque in Foot Pounds (Newton Meters).*

WRENCH

BOLT DIAMETER

SAE

SAE

SAE

(IN.) “B” AND

SIZE (IN.) “A”

THREAD SIZE

GRADE 2

GRADE 5

GRADE 8

7/16

1/4 - 2O UNC

6 (7)

8 (11)

12 (16)

Wrench Size “A”

SAE Grade 2 (No Dashes)

SAE Grade 5

(3 Dashes)

Bolt “B”

Diameter

SAE Grade 8

(6 Dashes)

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

Bolt “B”

 

Diameter

Wrench

Size “A” 8.8

Numbers appearing on bolt heads indicate ASTM class.

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

 

 

 

 

 

 

 

 

Proper torque for metric fasteners used on Bush Hog equipment.

Recommended torque in foot pounds (newton Meters).*

 

WRENCH

 

 

 

BOLT

ASTM

ASTM

ASTM

ASTM

 

SIZE

 

 

 

DIA.

 

(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)

 

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)

 

 

16

 

 

 

 

 

 

 

 

 

 

 

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Contents Bush HOG Congratulations Table of Contents ATH 900Operator’sFINISHINGManualMOWERThis Limited Warranty Shall not Apply Disclaimer of Implied Warranties & Consequential DamagesDealer Preparation Check List ATH 900 Finishing Mowers Important Safety Precautions EMPLOYERS, Employees and Operations Employee Tractor Operating InstructionsSection Introduction and Description IntroductionDescription Section Preparation for USE Attaching to TractorPage Cutting Height Adjustment Section Operating InstructionsOperation Section Maintenance Maintenance Check ListBlade Replacement Belt AdjustmentBelt Replacement Wear Heavy Work Gloves to PRO- Tect Hands from Sharp EdgesTroubleshooting Problem Probable Cause RemedyDealer Assembly Base Unit AssemblySection Page Safety Decals Torque Specifications SAE Grade DashesPage Griffin Ave. Selma, AL
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