Demco AC20037 Bolt Torque for Standard bolts, Lb-ft N.m, Bolt Torque for Metric bolts, Class, 9.8

Page 13

BOLT TORQUE

TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAPSCREWS.

Tighten all bolts to torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt chart as guide. Replace hardware with same grade bolt.

NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts are used throughout assembly of equipment.

Bolt Torque for Standard bolts *

Torque Specifications

 

GRADE 2

GRADE 5

GRADE 8

 

“A” lb-ft (N.m)

lb-ft

(N.m)

lb-ft

(N.m)

 

 

 

 

 

 

 

 

 

1/4”

6

(8)

9

(12)

12

(16)

 

5/16”

10

(13)

18

(25)

25

(35)

 

3/8”

20

(27)

30

(40)

45

(60)

 

7/16”

30

(40)

50

(70)

80

(110)

 

1/2”

45

(60)

75

(100)

115

(155)

 

9/16”

70

(95)

115

(155)

165

(220)

 

5/8”

95

(130)

150

(200)

225

(300)

 

3/4”

165

(225)

290

(390)

400

(540)

 

7/8”

170

(230)

420

(570)

650

(880)

 

1”

225

(300)

630

(850)

970

(1310)

 

 

 

 

 

 

 

 

Bolt Torque for Metric bolts *

Torque figures indicated are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil bolts or capscrews unless otherwise specified in this manual. When using locking elements, increase torque values

by 5%.

*GRADE or CLASS value for bolts and capscrews are identified by their head markings.

 

CLASS 8.8

CLASS 9.8

CLASS 10.9

“A”

lb-ft

(N.m)

lb-ft

(N.m)

lb-ft

(N.m)

6

9

(13)

10

(14)

13

(17)

7

15

(21)

18

(24)

21

(29)

8

23

(31)

25

(34)

31

(42)

10

45

(61)

50

(68)

61

(83)

12

78

(106)

88

(118)

106

(144)

14

125

(169)

140

(189)

170

(230)

16

194

(263)

216

(293)

263

(357)

18

268

(363)

--

--

364

(493)

20

378

(513)

--

--

515

(689)

22

516

(699)

--

--

702

(952)

24

654

(886)

--

--

890

(1206)

 

 

 

 

 

 

 

GRADE-2 GRADE-5 GRADE-8

CLASS 8.8 CLASS 9.8 CLASS 10.9

8.8 9.8 10.9

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Contents Patent No ,286,870 General Information Table of ContentsWarranty Registration Postage Page Lighting and Marking Equipment Safety GuidelinesSafety Sign Locations Tire Safety Safety Sign CareHow to install safety signs RememberDuring Operation Following Operation Highway and Transport Operations Performing Maintenance Lb-ft N.m Bolt Torque for Standard boltsBolt Torque for Metric bolts ClassHead Mounting Brackets Mounting Brackets7600-7800 & 7610-7810 Series 7720, 7820, & 7920 SeriesSeries OVER-HEAD Mounting BracketsSeries IVT John Deere 30’S IVT OVER-HEAD Mounting BracketsMX Magnum Parts Breakdown Ford Genesis & Buhler OVER-HEAD Mounting TG Series NEW Holland OVER-HEAD Mounting BracketsTG Series New Holland John Deere 8000 Track Mounting Brackets and Skid Installation John Deere 8000 TrackJohn Deere 9000 Track Mounting Brackets and Skid Description NO. no CAT MT765 Challenger Mounting Brackets and SkidAssembly Instructions Hub Breakdown Sidequest Parts BreakdownSidequest Plumbing Breakdown Gallon Sidequest Parts BreakdownRefer to p.22 for replacement part numbers Gallon Sidequest Center Exit 35631 Parts Breakdown Gallon Sidequest Center Exit Parts Breakdown Optional Sidequest Jackstands Breakdown Step Parts Breakdown Optional Sidequest Light KIT Parts Breakdown Parts ListPage Sprayer Checklist Dethmers MFG. Company
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