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Zonxin Semi-trailer Air Suspension User Manual

Time:2025-10-02   Edit:Admin    Views:305

2.9 Tightening Torque Table for Fasteners

No.Application PositionQuantity / AxleThread SpecificationTightening Torque (Nm)
1

Connection between guide leaf spring and leaf spring bracket

2

M30×2×200-10.9

850~900

2

Connection between guide leaf spring and axle (U-bolt)

8

M24×2-10.9

650~700

3

Connection between guide leaf spring and connecting plate

4

M18×1.5×70-10.9

180~220

4

Connection between airbag assembly and connecting plate

4

1/2-13×1.77″

35~45

5

Connection between lift airbag assembly and lift beam

2

1/2-13

35~45

6

Connection between airbag assembly and upper airbag bracket

2

1/2-13

35~45

7

Connection between airbag assembly and upper airbag bracket

2

3/4-16

55~60

8

Connection between shock absorber and leaf spring bracket

2

M24×2×260-10.9

550~600

9

Connection between shock absorber and mounting plate

2

M24×2×260-10.9

550~600

10

Connection between height control valve and upper bracket

2

M8×1.25

20
11

Connection between connecting sleeve and lower bracket

1

M8×1.25

19
12

Other bolts

Unless otherwise specified, tightening torque shall follow the national standard.



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