Bush Hog GT 48 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 specified 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)

19

Image 21
Contents Bush HOG Congratulations Operator’s Manual Table of ContentsDisclaimer of Implied Warranties & Consequential Damages This Limited Warranty Shall not ApplyDealer Preparation Check List Safety Alert Symbol Important Safety Precautions Page Employee Tractor Operating Instructions EMPLOYERS, Employees and OperationsSection Introduction and Description IntroductionDescription Cutting Height Adjustment General SafetySection Operation Attaching to Towing VehicleEngine Starting Electric Start Control BOX MountingEngine Shutdown CuttingMaintenance Check List Section MaintenanceBelt Adjustment Replacing BeltHUB Bearing Replacement Blade ReplacementTroubleshooting General Troubleshooting Section Dealer AssemblyBase Unit Cuff Weldment Height Adjustment Handle Base Unit AssemblyElectric Start Connection to Engine Wiring DiagramOptional Rear Roller Optional Front RollerOptional Bumper Guard Optional Offset TongueSafety Decals American Torque SpecificationsBush HOG, L.L.C

GT 48 specifications

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