| Remove | ||
1 | Secure vehicle to prevent it from moving by itself | ||
2 | Detach wheel nut caps | Only if wheel nut caps are installed. To do this, unscrew wheel nuts to which the wheel nut cap is attached. | |
3 | Slacken wheel nuts | ||
4 | Raise and jack up vehicle at front and rear axle | Jack up vehicle at rear axle and place on axle stands | |
Raise/support vehicle at front axle | |||
Raise the vehicle until the wheels are free. Secure the vehicle at suitable locations using jack stands to prevent it from falling down. | |||
5 | Detach clamping plates | Only necessary with Trilex wheels. Detach the clamping plates by tapping gently with a plastic mallet. | |
6 | Unscrew wheel nuts | Unscrew all wheel nuts with the exception of three equally spaced wheel nuts on each wheel. Only unscrew the last three wheel nuts when you have made sure that the wheel is sitting loose on the wheel bolts. | |
7 | Remove wheels | When removing the wheels, do not damage the wheel studs; use suitable assembly sleeves if necessary. | |
| Check | ||
8 | Check tires and rims for damage and wear | Damaged or worn tires and rims must be replaced subject to a separate repair order. | |
9 | Check wheel studs and wheel nuts for damage | Damaged wheel nuts and wheel studs must be replaced immediately. | |
| Clean | ||
10 | Clean contact surfaces on rims and wheel hubs and, if necessary, remove any rust | Grind off any excess paint. | |
| Install | ||
11 | Lightly oil friction surfaces between pressure plate disks and wheel nuts | Only in the case of wheel nuts with pressure plate disks. | |
12 | Install wheels | The threads of wheel studs and wheel nuts must be free of oil and grease. | |
On disk wheels with center centering screw on all wheel nuts until they are flush with the disk wheels. | |||
On disk wheels with bolt centering first screw on two to three wheel nuts opposite one another until they are flush with the disk wheels. Then screw on the remaining wheel nuts. With twin tires check whether all spherical spring washers are seated correctly before putting on the inner wheel. | |||
On Trilex rims screw on the clamping plates with the wheel nuts until the wheel nuts are flush with the Trilex rims. With twin tires, fit the intermediate ring before mounting the outer wheel. | |||
13 | Lower the vehicle | ||
14 | Install wheel nut caps | Only if wheel nut caps are installed. | |
15 | Tighten wheel nuts | With disk wheels, tighten the wheel nuts in a diagonally opposite sequence. Only tighten wheel nuts slightly using the impact wrench/driver and tighten to the specified tightening torque using the torque wrench. | |
On Trilex rims tighten the wheel nuts in several passages in series (not in a criss-cross pattern). | |||
Nut for disk wheel | |||
Trilex wheels | |||
16 | Retighten wheel nuts to the correct tightening torque after 50 to 100 km | ||
| Retighten wheel bolts or nuts | ||
When using new or newly painted rims in addition retighten the wheel nuts to the correct tightening torque after 1000 to 5000 km. |