MacDon M200 Manual del operador descargar pdf (Pagina 120)

MAINTENANCE AND SERVICING

Form 169017 / 169087 / 169095 118 Revision C

7.3.2 RECOMMENDED TORQUES

7.3.2.1 Bolts

The tables shown give correct torque values for

various bolts and capscrews.

• Tighten all bolts to the torques specified in

chart unless otherwise noted throughout this

manual

• Check tightness of bolts periodically, using

bolt torque chart as a guide.

• Replace hardware with the same strength

bolt.

• Torque figures are valid for non-greased or

non-oiled threads and heads unless otherwise

specified. Do not grease or oil bolts or

capscrews unless specified in this manual.

• When using locking elements, increase torque

values by 5%.

7.3.2.1.1 SAE Bolts

BOLT

DIA.

"A"

in.

NC BOLT TORQUE*

SAE 5 SAE 8

lbf·ft N·m lbf·ft N·m

1/4 9 12 11 15

5/16 18 24 25 34

3/8 32 43 41 56

7/16 50 68 70 95

1/2 75 102 105 142

9/16 110 149 149 202

5/8 150 203 200 271

3/4

265 359

365 495

7/8 420 569 600 813

1 640 867 890 1205

* Torque categories for bolts and capscrews are identified by

their head markings.

7.3.2.1.2 Metric Bolts

BOLT

DIA.

"A"

NC BOLT TORQUE*

8.8 10.9

lbf·ft N·m lbf·ft N·m

M3 0.4 0.5 1.3 1.8

M4 2.2 3 3.3 4.5

M5 4 6 7 9

M6 7 10 11 15

M8 18 25 26 35

M10 37 50 52 70

M12 66 90 92 125

M14 103 140 148 200

M16 166 225 229 310

M20 321 435 450 610

M24 553 750 774 1050

M30 1103 1495 1550 2100

M36 1917 2600 2710 3675

* Torque categories for bolts and capscrews are identified by

their head markings.

SAE-5 SAE-8

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 233 234

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