Filling The Air-Spring Strut

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WARNING: Working with compressed air

Risk of eye injuries
Risk of damaging and dirtying components

→ Wear protective goggles with side eye protection.

→ Protect the point at which the compressed air emerges with suitable material.

→ Place the point at which the compressed air emerges on suitable surfaces.

1. Remove protection cap from the pressure control valve. Carefully remove any remaining packaging. Make sure not to damage the protective bellows during the filling process.
2. Adapter T10157/1 from the filling unit must be screwed onto the pressure control valve at the correct position.

Fig 1: Identifying Adapter T10157/1
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information
- The air-spring strut must only be filled with the approved gasses, nitrogen or oil-free compressed air .
- In some cases, up to 11 bar overpressure (upper tolerance, spring strut depressurized) is required to open the pressure control valve .
- Fill the air-spring strut using several individual pressure shots. Filling the air with individual pressure shots will prevent the air-spring strut from being filled with too much overpressure .
- Do not fill the air-spring strut with overpressure of more than 2.5 bar .
4. → see Fig 2 Filling unit must now be fitted to the pressure gauge unit of the compressed air bottle.

Fig 2: Pressure Gauge
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. → see Fig 3 pressure gauge unit (flow limiter) must be set to approx. 20 l/min -arrow- .

Fig 3: Locating Pressure Gauge Reading
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information

The air-spring strut is empty if the rubber bellows can be pressed in slightly.

Fig 4: Checking Air Bellows
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Carefully overcome the counter-pressure of the pressure control valve with three to four short individual pressure shots and fill the air-spring strut. Do not exceed the maximum → Pressure: +2.5 bar !
1. 6.1. Check the rubber bellows several times during the filling process to see if it can be pressed in. Sufficient air is filled in when the bellows can no longer be pressed in slightly.
2. 6.2. If the length of the air-spring strut changes during the filling process, enough air has been filled in.
3. 6.3. When sufficient air has been filled, quickly pull off the connection from the pressure control valve. Pulling off the air-spring strut filling unit VAS 6231 00000 quickly prevents gas from escaping from the air-spring strut. Repeat the filling process if necessary.
7. Once the air-spring strut has been filled correctly, it can be removed from the transport packaging and fitted.