BMW X3 Service & Repair Manual: Spray gun for cavity sealant

1.0 Delivery specification:

• Owner's Handbook
• Pressure reservoir spray gun (1) for cavity sealant
• Spray set, consisting of spray hoses: Angle nozzle (2) and round spray nozzle (3)

IMPORTANT: Prior to start-up read and familiarize yourself with the manufacturer's operating and safety instructions.

2.0 Start-up:

• Open the pressure reservoir and insert the cavity sealant in the form of a 1-liter can.

  Close the pressure reservoir.

• Connect the spray hose to the quick-release coupling.
• Connect the device to the compressed air supply.

  Operating pressure 2-6 bar, max. 8 bar!

3.0 Operating principle:

NOTE: Unlike previous devices you can alter the spray pattern on this device with the air volume regulating screw (large knurled screw).

• Twisting the air volume regulating screw in decreases the air volume and thus reduces the formation of material mist.

This facilitates optimum working when preserving open components/surfaces.

• Twisting the air volume regulating screw out increases the air volume and thus increases the formation of material mist. (For closed cavities)
• The trigger has two settings.

  1st setting - air discharge only.

  2nd setting - air and material discharge.

• After finishing work, press the first setting to clean the spray hose with compressed air.
• Prior to storing, remember to twist the air volume regulating screw closed to reduce the risk of the material drying out.
• Prior to an extended period of non-use (2 weeks and more), clean the gun.
• To ensure that the spray hoses function properly, do not store them coiled up e.g. in the side member area! Store the spray hoses stretched out.

4.0 Application examples:

• Use the appropriate spray hoses for the different types of cavity and surface.
• Example - doors, lids and hatches: Spray hose with angle nozzle. Reduce air volume to keep the formation of mist low.
• Example - side members: Long spray hose with round spray nozzle. The air volume must be increased a little, depending on the type used.
• Basically, keep the formation of mist low to avoid fouling and unpleasant odors.

5.0 Safety instructions:

• Do not inhale spray mist.
• Use in well ventilated rooms only.
• Operating pressure max. 8 bar.