Maintenance and Installation Instructions Edition 11.07.2006 8 of 30
Installation
General Instructions
Torque limits in Nm for screws to ZF Standard 148
Torque limits, if not especially indicated, can be taken from the following list:
Metric ISO-Standard thread DIN 13,
Sheet 13
Metric ISO-Fine thread DIN 13,
Sheet 13
Size 8.8 10.9 12.9 Size 8.8 10.9 12.9
M 4 2.8 4.1 4.8 M 8x1 24 36 43
M 5 5.5 8.1 9.5 M 9x1 36 53 62
M 6 9.5 14 16.5 M 10x1 52 76 89
M 7 15 23 28 M 10x1.25 49 72 84
M 8 23 34 40 M 12x1.25 87 125 150
M 10 46 68 79 M 12x1.5 83 120 145
M 12 79 115 135 M 14x1.5 135 200 235
M 14 125 185 215 M 16x1.5 205 300 360
M 16 195 280 330 M 18x1.5 310 440 520
M 18 280 390 460 M 18x2 290 420 490
M 20 390 560 650 M 20x1.5 430 620 720
M 22 530 750 880 M 22x1.5 580 820 960
M 24 670 960 1100 M 24x1.5 760 1100 1250
M 27 1000 1400 1650 M 24x2 730 1050 1200
M 30 1350 1900 2250 M 27x1.5 1100 1600 1850
M 33 1850 2600 3000 M 27x2 1050 1500 1800
M 36 2350 3300 3900 M 30x1.5 1550 2200 2550
M 39 3000 4300 5100 M 30x2 1500 2100 2500
M 33x1.5 2050 2900 3400
M 33x2 2000 2800 3300
M 36x1.5 2700 3800 4450
M 36x3 2500 3500 4100
M 39x1.5 3450 4900 5700
M 39x3 3200 4600 5300
Friction value: µ tot. 0.12 for screws and nuts without after-treatment, as well as phosphatized nuts.
Tightened by hand!
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