Page 53 - Catalog spare parts BPW LUFT

Auto Parts / Page 52 BPW-EL-Luft 31051601e

2 Axle clamping

2.6 Assembly instructions for clamped axle spring seat assemblies

Trailing arm width 70 mm ( AL II ), spring U-bolts M 22
Series ALO / ALM

AL

Series ALU Assembly instructions:
Spring seats and trailing arms are to be aligned
parallel to the axle beam and the self locking nuts
are to be tightened down diagonally and equally
until they contact the spring plate.
Control parallel position of spring seats and trailing
arm towards axle beam and hereafter tighten
self-locking nuts diagonally in a.m. sequence
1-2-3-4 until all have achieved a tightening torque
of 200 Nm.
Using a torque wrench tighten self-locking nuts
diagonally in following steps to the tightening
torque of 550 Nm:

1) 200 Nm s.a.
2) 300 Nm
3) 450 Nm
4) 550 Nm

Hereafter tighten the nuts by another 90° turning
angle.

M = 550 Nm + 90°

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