ProSpray 3.21 17GB Appendix12. Appendix12.1 Selection of tipTo achieve faultless and rational working, the selection of the tip is of the greatest importance.In many cases the correct tip can only be determined by means of a spraying test.Some rules for this:The spray jet must be even.If streaks appear in the spray jet the spraying pressure is either too low or the viscosity of the coating material to high.Remedy: Increase pressure or dilute coating material. Each pump conveys a certain quantity in proportion to the size of the tip:The following principle is valid: large tip = low pressuresmall tip = high pressureThere is a large range of tips with various spraying angles.12.2 Servicing and cleaning of Airless hard-metal tipsStandard tipsIf a different tip type has been fitted, then clean it according to manufacturer’s instructions.The tip has a bore processed with the greatest precision. Careful handling is necessary to achieve long durability. Do not forget the factthat the hard-metal insert is brittle! Never throw the tip or handle with sharp metal objects.The following points must be observed to keep the tip clean and ready for use:1. Turn the relief valve handle fully counterclockwise (k Circulation).2. Switch off the gasoline engine.3. Dismount the tip from the spray gun.4. Place tip in an appropriate cleaning agent until all coating material residue is dissolved.5. If there is pressure air, blow out tip.6. Remove any residue by means of a sharp wooden rod (toothpick).7. Check the tip with the help of a magnifying glass and, if necessary, repeat points 4 to 6.12.3 Spray gun accessoriesFlat jet adjusting tipup to 250 bar (25 MPaTip marking Bore mm Spray width at about 30 cmremoval of spray objectPressure 100 bar (10 MPa) use Flat jetadjusting tipOrder No.15202841490.13 - 0.460.18 - 0.480.28 - 0.660.43 - 0.880.53 - 1.375 - 35 cm5 - 50 cm8 - 55 cm10 - 60 cm10 - 40 cmPaintsPaints, fillersPaints, dispersionsRust protectionpaints - dispersionsLarge-area coats0999 0570999 0530999 0540999 0550999 056Contact protectionfor the flat jet adjustment tipOrder No. 0097 294Tip extensionwith slewableknee joint(without tip)Tip extensionLength 100 cm Order no. 0096 015Length 200 cm Order no. 0096 016Length 300 cm Order no. 0096 01715 cm, F-thread, Order no. 0556 051 15 cm, G-thread, Order no. 0556 07430 cm, F-thread, Order no. 0556 052 30 cm, G-thread, Order no. 0556 07545 cm, F-thread, Order no. 0556 053 45 cm, G-thread, Order no. 0556 07660 cm, F-thread, Order no. 0556 054 60 cm, G-thread, Order no. 0556 077