BMW 7 Series: Gun For Cavity Sealing
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Fig. 17: Identifying Vessel Gun, Angle Nozzle And Round Spray Nozzle
1.0 Scope of delivery
- Owner's Handbook
- Pressure vessel gun (1) for cavity sealing
- Spray set, consisting of spray hoses: angle nozzle (2) and round spray
nozzle (3)
IMPORTANT: Before start-up, read Owner's Handbook and safety instructions.
2.0 Start-up
3.0 Mode of operation
NOTE: Unlike previous apparatus, it is possible here to alter the spray
pattern with the
air flow control screw (large knurled screw)!
- Twisting the air flow control screw in decreases the air flow and thus
reduces the material spray mist.
This facilitates optimum working when preserving open components/surfaces.
- Twisting the air flow control screw out increases the air flow and thus
the material spray mist (for closed
cavities).
- The trigger lever has two stages.
Stage 1 - discharge of air only.
Stage 2 - discharge of air and material.
- After finishing work, press the first stage to clean the spray hose with
compressed air.
- When storing, remember to twist the air flow control screw closed to
prevent the material from drying
out.
- Clean the gun prior to extended periods of non-use (approx. 2 weeks and
upwards).
- To ensure that the spray hoses function properly, do not store the hoses
coiled up e.g. in the frame side
member area!
Store spray hoses stretched out.
4.0 Application examples
- Use the matching spray hoses for the different cavities or surfaces.
- Example - doors and lids:
Spray hose with angle nozzle. Reduce air flow to keep spray mist to a
minimum.
- Example - frame side member:
Long spray hose with round spray nozzle. Depending on the type, increase the
air flow slightly.
- Always keep the spray mist to a minimum so as to avoid fouling and bad
smells.
5.0 Safety instructions
- Do not inhale spray mist.
- Use only in well ventilated rooms.
- Working pressure max. 8 bar.
Handling Airbags And Restraint Systems
1.0 Airbags and restraint systems
HANDLING ELECTRICAL AND ELECTRONIC EQUIPMENT
1.0 Battery
- Explosion hazard in the vicinity of the battery during welding and
grinding work. The battery must be
removed.
2.0 Control units
- The following risks exist when the battery is connected:
- Damage to control units resulting from welding work on the body or a
line short circuit.
- Accidental activation of airbags during straightening work on the
body.
Because of these risks the battery negative lead must be disconnected prior
to all repair work.
- Control units are designed for a temperature of 65ºC. The temperatures
in a spray booth do not pose any
problems. If a vehicle is in the spray booth at a displayed temperature of
80ºC, the actual temperature of
the vehicle is = 60ºC (object temperature).
- Protect control units against effects of heat >65ºC (e.g. during welding
and drying work with an infrared
radiator or hot air blower).
3.0 Electrical wires and wiring harnesses
- Protect electrical wires and wiring harnesses against damage (e.g.
during straightening and grinding
work).
- Protect electrical wires and wiring harnesses against effects of heat
>65ºC (e.g. during welding and
drying work with an infrared radiator or hot air blower).
- Do not kink electrical wires.
4.0 Optical fibres
Follow instructions for handling optical fibres, see ELECTRICAL SYSTEM.
READ NEXT:
Missing or damaged information/warning labels (e.g. tire inflation pressure)
must be replaced.
--> Overview of installation locations
INFORMATION ON HAZARDS
1.0 Aluminium
HAZARDS INFORMATION CHAR
Protection measures!
Wear safety goggles
Wear protective gloves
Hexagon/straight shank rivet nut (up to thread 8) with hand rivet gun
ZS308
IMPORTANT: Risk of damage!
Failure to comply with these
NOTE: Carry over schematic representation to the relevant vehicle type.
The following repair represents the procedure for an already expanded cavity
bulkhead.
The cavity bulkhead remains on the body
SEE MORE:
SUBSEQUENT INSTALLATION OF WHEEL-BOLT LOCK
Loosen wheel bolts.
Raise car so that wheel can be turned freely.
Release wheel studs to such an extent that the wheel can move freely on the
wheel hub.
Turn wheel so that valve is face down.
Remove top wheel stud and insert wheel stud lock.
Fig. 72:
NOTES ON REMOVING AND INSTALLING LOW PROFILE BAND CLAMPS
Notes
IMPORTANT: During removal Low Profile band clamp (dotted line) is
overstretched and must
not be reused!
Fig. 82: Identifying Low Profile Band Clamp (Dotted Line)
Removing
Place special tool 31 5 200 on tabs (1, 2).
NOTE: Make sure that