Buhler 65 Series warranty Bolt Torque Checking Bolt Torque, English Torque Specifications

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65 Series Rotary Tiller

BOLT TORQUE

CHECKING BOLT TORQUE

The tables shown below give correct torque values for various bolts and capscrews. Tighten all bolts to the torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt torque chart as a guide. Replace hardware with the same strength bolt.

ENGLISH TORQUE SPECIFICATIONS

 

Bolt

 

 

 

Bolt Torque *

 

 

 

 

 

 

Diameter

SAE2

SAE 5

 

SAE 8

 

 

"A"

N.m

 

(lb-ft)

N.m

(lb-ft)

N.m

(lb-ft)

 

 

¼”

8

 

(6)

12

(9)

 

17

(12)

 

 

5/16"

13

 

(10)

25

(19)

 

36

(27)

 

 

3/8"

27

 

(20)

45

(33)

 

63

(45)

 

 

7/16"

41

 

(30)

72

(53)

 

100

(75)

 

 

 

½”

61

 

(45)

110

(80)

 

155

(115)

 

 

9/16"

95

 

(70)

155

(115)

 

220

(165)

 

 

 

5/8”

128

 

(95)

215

(160)

 

305

(220)

 

 

 

¾”

225

 

(165)

390

(290)

 

540

(400)

 

 

7/8"

230

 

(170)

570

(420)

 

880

(650)

 

 

1"

345

 

(225)

850

(630)

 

1320

(970)

 

 

 

METRIC TORQUE SPECIFICATIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bolt

 

 

 

Bolt Torque *

 

 

 

 

 

 

Diameter

8.8

 

10.9

 

 

 

 

 

 

 

 

"A"

N.m

 

(lb-ft)

N.m

(lb-ft)

 

 

 

 

 

 

M3

.5

 

(.4)

1.8

(1.3)

 

 

 

 

 

 

 

M4

3

 

(2.2)

4.5

(3.3)

 

 

 

 

 

 

 

M5

6

 

(4)

9

(7)

 

 

 

 

 

 

 

M6

10

 

(7)

15

(11)

 

 

 

 

 

 

 

M8

25

 

(18)

35

(26)

 

 

 

 

 

 

 

M10

50

 

(37)

70

(52)

 

 

 

 

 

 

 

M12

90

 

(66)

125

(92)

 

 

 

 

 

 

 

M14

140

 

(103)

200

(148)

 

 

 

* Torque value for bolts and cap screws are identified

 

M16

225

 

(166)

310

(229)

 

 

 

by their head markings.

 

M20

435

 

(321)

610

(450)

 

 

 

 

 

 

 

M24

750

 

(553)

1050

(774)

 

 

 

 

 

 

 

M30

1495

(1103)

2100

(1550)

 

 

 

 

 

 

M36

2600

(1917)

3675

(2710)

 

 

 

 

 

Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil bolts or cap screws unless otherwise specified in this manual. When using locking elements, increase torque values by 5%.

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