Page 25 - BPW axles with air suspension Series O SL AL
P. 25
Struts / bolted steel air suspension hanger brackets 4.4.6
Mounting sequence with bolted air suspen-
sion hanger brackets:
1. Bolt the hanger bracket onto the vehicle
frame using M 16 knurled bolts. Tightening
2 M 16 knurled bolt, frame /
hanger bracket connection torque 260 Nm (240 - 285 Nm).
2. Pre-mount the spring bolt loosely.
Vehicle frame 3. Pre-mount the bracing plate with at least
three M 16 10.9 bolts (top) and an M 18 bolt
(bottom). Pre-mount the corresponding nuts.
Top plate 4. Tighten the M 18 connecting bolt (bracing
Mounting hanger bracket
direction plate-spring bolt) to approx. 50 Nm.
5. Tighten the M 24 spring bolt loosely until all
components have been brought into contact.
6. Set the track.
7. Tighten the M 24 spring bolt. Tightening
torque 650 Nm (605 - 715 Nm).
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1 Bracing plate
8. Tighten the M 18 connecting bolt (bracing
plate-spring bolt). Tightening torque 420 Nm
1a M 24 spring bolt with flange (390 - 460 Nm)
9. 9. Tighten the top connecting bolts M 16,
10.9 (bracing plate/crossmember) to the max.
permitted tightening torque (not supplied by
BPW).
1c M 18 connecting bolt
bracing plate / spring bolt
1d M 18 nut bracing plate / spring bolt
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Tracking is established in the usual way and does
not require any additional tools.
Contact surfaces for bolted connection parts:
O Coat thickness for painting, max. 30 µm,
O coat thickness for hot-dip galvanising
max. 100 µm.
BPW-EA-Luft 1023701e 25
