Bush Hog 306, 305 manual Torque Specifications, SAE Grade No Dashes, SAE Grade Dashes

Page 19

AMERICAN

Bolt Head Markings

TORQUE SPECIFICATIONS

Proper toque for American fasteners used on Bush Hog equipment.

Recommended Torque in Foot Pounds (Newton Meters).*

 

BOLT DIAMETER

 

 

 

WRENCH

(IN.) “B” AND

SAE

SAE

SAE

SIZE (IN.) “A”

THREAD SIZE

GRADE 2

GRADE 5

GRADE 8

Wrench Size “A”

SAE Grade 2

(No Dashes)

SAE Grade 5

(3 Dashes)

Bolt

Diameter

“B”

 

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

olt

“B”

 

B

r

 

 

 

te

 

 

m

e

 

 

ia

 

 

 

D

 

 

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 specificed torque values for lubricated fasteners.

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)

 

 

 

 

 

 

 

 

 

 

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)

 

 

 

 

 

 

 

 

 

 

17

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Contents Bush HOG Congratulations Retail CUSTOMER’S Responsibility Under the Bush HOG Warranty Table of ContentsRanties, implied or expressed This Limited Warranty Shall not ApplyDealer if parts or service are required Disclaimer of Implied Warranties & Consequential Damages305/306 Series Rotary Cutters Dealer Preparation Check ListImportant Safety Precautions Osha Regulations EMPLOYERS, Employees and OperationsEmployee Tractor Operating Instructions This Act SeeksSeries Section Introduction and DescriptionIntroduction DescriptionAttaching to Tractor Section Preparation for USETo Match Tractor PTO Shaft Repeat steps I and J to other driveline section Contact authorized Bush Hog dealer Minimum OverlapSection General SafetyAdjusting for Work Cutting Height AdjustmentTransporting Maintenance Check ListArea Replace blade holder and tighten the lower Blade ReplacementSlip Clutch Operational Check Is in good conditionGearbox Maintenance Slip Clutch AdjustmentProblem Probable Cause TroubleshootingYoke PRE-ASSEMBLY Safety PrecautionsHeavy Duty 3-POINT Hitch Tailwheel AssemblySetting Follow the Proper Adjustment PRO Cedure50029418 Safety Decals50029419 78608 78786 SAE Grade No Dashes Torque SpecificationsSAE Grade Dashes Bush HOG, L.L.C
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