Porshe 911 (997). Manual - part 267

Balancing weights

Balancing weights: Balance stick-on weights (current version is a fine zinc alloy), see Spare Parts Catalogue.

Attach both weights to the inner side.

Note

Observe program selection and operating instructions of the balancing machine.

• 

Attaching the balance stick-on weights

Note

Remove the protective film just before sticking on the weight, as prolonged exposure to the air will
reduce the bonding strength.

• 

Pay attention to cleanliness.

• 

–  Determine exact position of the balancing weights (if necessary, temporarily stick on the balancing

weights with a strip of adhesive tape until the correct position is determined).

–  Prepare bonding surface on the rim. The bonding surface must be perfectly clean and free of

grease.

–  Remove protective paper from the bonding surface of the weight and press the weight firmly into

place.

–  The balance stick-on weight must be in uniform contact over the entire

surface.

–  Check the balancing weight is seated firmly. A weight freshly affixed weight must not detach itself from

the rim under application of a shear load at right angles to its longitudinal axis.

997110, 997111, 997120, 997121, 997310, 997311, 997320, 997321, 997410, 997411, 997430, 997431,
997610, 997611, 997620, 997621

Diagnostic system: reading out fault memory and activating systems

Balancing weights

1225

C23, C24, C25, C26, C27, C28, C32, C33, C34, C35, C36, C37, C38, C39, C45, C46, C98, C99

WARNUNG

Gefahr des Verlusts der Text-Bild-Zuordnung beim Ausdruck.

Aus technischen Gründen kann derzeit nicht ausgeschlossen werden, dass trotz
einwandfreier Darstellung auf dem Bildschirm beim Ausdruck der
Zusammenhang von Text und zugehörigem Bild verloren geht.

• 

Wird der Fehler nicht bemerkt, besteht die Gefahr, daß Arbeiten nicht korrekt
durchgeführt werden und es dadurch zu Personen- und Sachschäden kommt.

• 

→ Vergleichen Sie deshalb nach dem Druckvorgang unbedingt die Ausdrucke mit der
Bildschirmdarstellung. Korrigieren Sie die Ausdrucke im Fehlerfall so, daß der Inhalt der
Bildschirmdarstellung zutreffend wiedergegeben wird.

WARNING

Danger of losing text-figure correspondence when printing out.

For technical reasons, it can currently not be ruled out that the correspondence
between text and associated figure can be lost when it is printed out, even though
the display on the screen is correct.

• 

If the fault is not noticed, there is the danger that work will not be performed
correctly which can cause injury and damage.

• 

→ Therefore, always compare printouts with the screen display after printing them out. Correct
the printouts if they are faulty so that the content of the screen display matches that on the
printouts.

AVERTISSEMENT

Risque de perte de la correspondance texte-illustration lors de l'impression papier.

Pour des raisons techniques, il ne peut pas être exclu à l'heure actuelle que, même
en cas d'affichage correct à l'écran, la correspondance entre le texte et l'illustration
puisse être erronée sur l'impression papier.

• 

Si l'erreur passe inaperçue, on court le risque d'exécuter certaines opérations de
manière incorrecte pouvant conduire à des dommages corporels et matériels.

• 

→ Comparez impérativement pour cette raison les impressions papier avec l'affichage à l'écran.
Corrigez-les en cas d'erreur de manière à reproduire correctement l'affichage à l'écran.

ATTENZIONE

Pericolo di perdita dell'abbinamento testo-immagine nella stampa.

Per motivi tecnici non è escluso che, nonostante la rappresentazione sullo schermo
risulti perfetta, durante la stampa venga persa la corrispondenza fra testo e
relativa immagine.

• 

Diagnostic system: reading out fault memory and activating systems

Attaching the balance stick-on weights

1226

Se tale difetto non viene rilevato vi è il pericolo che i lavori non siano eseguiti
correttamente; ciò può avere come conseguenza lesioni e danneggiamenti.

• 

→ Per questo motivo, dopo la stampa è assolutamente necessario confrontare le stampe con la
rappresentazione sullo schermo. In caso di errore si prega di correggere le stampe, così da
garantire la riproduzione esatta della rappresentazione sullo schermo.

ADVERTENCIA

Al imprimir se corre el riesgo de perder la correcta asignación de las figuras al texto.

Por motivos técnicos, por el momento no se puede descartar que, aun siendo
correcta la imagen que aparezca en la pantalla, al imprimir se pierda la
correlación entre el texto y la figura correspondiente.

• 

Si este error pasara desapercibido, existe el riesgo de que los trabajos no se
ejecuten de forma correcta y, por tanto, se produzcan daños personales y
materiales.

• 

→ Por ello le rogamos que tras el proceso de impresión compare siempre las copias impresas con
la imagen de la pantalla. En caso de error, corrija las copias impresas de forma que se
correspondan con el contenido de la imagen de la pantalla.

Diagnostic system: reading out fault memory and activating systems

Attaching the balance stick-on weights

1227

- Checking the radial and lateral runout

Checking the radial and lateral runout

Note

Straightening and welding work on light alloy wheels is not permissible.

• 

The work is carried out initially with the wheel mounted on the vehicle.

• 

To measure wheels with tyres and wheels without tyres, use a tyre measuring gauge, e.g. VAG. 1435,
see Workshop Equipment Manual, Chapter 3.4.2.

• 

Maximum permissible radial runout and lateral runout of the wheel with tyre = 1.25 mm. Values less than 1.0
mm - better around 0.5 mm - are desirable. For this purpose, match the tyre (turn the tyre on the rim) if
necessary.).

Maximum permissible radial runout and lateral runout -a- of the light alloy wheels = 0.7 mm.
If in isolated cases further measurements are necessary, carry out the following procedure.

1.

1228