Page 65 - BPW axles with air suspension Series O SL AL

Important tightening torques 14

Pos. Attachment Thread Tightening torque
(thread lightly greased)
1 S Spprriinngg ppiinn

Spring bolt air suspension hanger bracket up to production year 07/2001 M 30 7 75500 NNmm (700 - 825 Nm)
Spring bolt air suspension hanger bracket from production year 08/2001 M 30 9 90000 NNmm (840 - 990 Nm)
onwards
Spring bolt channel crossmember M 30 9 90000 NNmm (840 - 990 Nm)
Spring bolt welded hanger bracket / channel crossmember AL II from build M 24 6 65500 NNmm (605 - 715 Nm)
year 09/2007 onwards 1)
2 S Spprriinngg UU--bboolltt
Spring U-bolt (exchange / initial installation) 2) M 20 3 34400 NNmm (315 - 375 Nm)
Spring U-bolt (exchange / initial installation) 2) M 24 - 10.9 6 65500 NNmm (605 - 715 Nm)
Check the axle connection is firmly seated (maintenance / checking) M 24 - 10.9 6 65500 NNmm (605 - 715 Nm)

Spring U-bolt AL II (exchange / initial installation 2) M 22 - 10.9 5 55500 NNmm ++ 9900°° RRoottaattiioonnaall
a annggllee
Check the axle connection AL II is firmly seated (maintenance / checking) M 22 - 10.9 5 55500 NNmm (510 - 605 Nm)
S Shhoocckk aabbssoorrbbeerr
3 Shock absorber M 20 3 32200 NNmm (300 - 350 Nm)
Shock absorber M 24 4 42200 NNmm (390 - 460 Nm)

3A Shock absorber on aluminium hanger bracket M 24 3 32200 NNmm (300 - 350 Nm)
A Aiirr bbaagg
4 Air bag top cover, stop two-sided lift M 12 6 666 NNmm
5 Air bag, bottom attachment M 16 2 23300 NNmm

6 Air bag, central bolt M 16 2 23300 NNmm
D Diiaapphhrraaggmm ccyylliinnddeerr
7 Diaphragm cylinder, two-sided lift M 16 1 18800 -- 221100 NNmm
B Boolltteedd hhaannggeerr bbrraacckkeett // ttwwoo--ssiiddeedd lliifftt ffoorr bboolltteedd hhaannggeerr bbrraacckkeett

8 Gusset plate / crossmember (use at least M 16!) 3) M 16, 10.9 Max. permitted Md.
9 Gusset plate / hanger bracket M 18 x 1.5 4 42200 NNmm (390 - 460 Nm)
10 Bottom flange / hanger bracket (knurled bolt) M 16 2 26600 NNmm (240 - 285 Nm)
11 Two-sided lift with bolted hanger bracket

- Diaphragm cylinder M 16 1 18800 -- 221100 NNmm
- Retaining arm M 16 2 23300 NNmm
- Hexagon bolt SW 24 M 12 1 10000 NNmm

1)
M 24 spring bolts are coated with Geomet, no need for greasing.
2)
Apply grease to the threads of the spring U-bolts and nut contact surfaces.
3)
BPW does not supply the gusset plate / crossmember bolt connection.

BPW-EA-Luft 1023701e 65