Porshe 911 (997). Manual - part 339

Removing primer on welding areas of spare parts using a rotary brush

Danger of injury when welding

DANGER

Risk of fatal injury from high voltage during electric welding!

Danger of explosion and fire when welding in the area of highly inflammable materials.

• 

Irritation to respiratory tracts from toxic zinc oxide emitted when welding galvanised steel!

• 

Danger of injury from unintentional triggering of pyrotechnical safety components!

• 

Danger of injury from weld spatters and UV light when welding!

• 

→ Do not perform welding work in a damp environment or on wet ground; there is a risk of fatal

injury from the voltage being conducted through the human body. Persons with heart pacemakers
should not perform welding work. Use insulating underlays.

→ Remove highly flammable materials from the work area; if necessary, remove units with

fuel-carrying parts and protect work areas in the vehicle that are at risk of catching fire using
fire-proof covers.

→ Ventilate the work area well.

→ Remove smoke gases with a suitable extraction system (refer to Workshop Equipment Manual).

→ Wear suitable protective equipment, such as protective clothing, gloves, a welding shield and, if

necessary, a protective mask.

→ For welding work, always disconnect both terminals on the battery. In the case of welding work in

the immediate vicinity of the control modules for pyrotechnical safety systems, remove the control
modules before beginning work.

→ In addition, the guidelines of the welding equipment manufacturer and the legal accident

prevention regulations and those of the mutual indemnity association (BGV D1) must be observed.

Safety instructions for flying sparks during grinding and welding work

ATTENTION

Danger of explosion and fire from flying sparks during grinding and welding work!

Danger of injury and danger of damage to vehicle parts and other vehicles due to flying sparks

• 

→ Cover vehicle parts such as battery, fuel system, paintwork, glass and passenger compartment parts with

fire-proof covers and, if necessary, remove batteries and fuel-carrying components.

→ No other vehicles may be left unprotected in areas used for body repair!

Diagnostic system: reading out fault memory and activating systems

Danger of injury when welding

1513

Installing front side members

Note

When butt welding body sheet panels with a sheet thickness of > 1.5 mm, there must be a welding slit width s
= 1 x sheet thickness to guarantee the required welding quality (welding through).

1. Weld in the inner side member.

1.1. Weld the inner side member with a full butt weld in area C under shielding

gas.

Welding in inner side member

2. Weld in outer side member.

2.1. Spot-weld outer side member to inner side member in areas B, E, G. Weld the outer side member

with a full butt weld in area F under shielding gas.

Diagnostic system: reading out fault memory and activating systems

Installing front side members

1514

Welding in outer side member

Subsequent work

Subsequent work for body repairs

1. Remove vehicle from the alignment bench.

2. Clean welded joints and sheetmetal flanges with a wire brush.

3. Prime flange areas with 2K

primer.

4. Restore standard sealing with body sealant.

→ 5  Seam sealing

5. Restore standard undersealing with underbody sealant.

→ 5  Underbody protection

6. Paint repair area and adjacent surfaces, if necessary.

7. Install removed accessories in the repair area.

8. Apply cavity preservation.

Diagnostic system: reading out fault memory and activating systems

 Subsequent work

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

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

Diagnostic system: reading out fault memory and activating systems

Subsequent work for body repairs

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