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13. Appendix
13.1 Selection of tip
To 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:
There is a large range of tips with various spraying angles.
13.2 Servicing and cleaning of Airless hard-metal tips
Standard tips
If 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 fact that 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.
13.3 Spray gun accessories
Flat jet adjusting tip
up to 250 bar (25 MPa)
Bore
Tip marking
mm
15
0.13 - 0.46
20
0.18 - 0.48
28
0.28 - 0.66
41
0.43 - 0.88
49
0.53 - 1.37
Tip extension
with
slewable knee joint
(without tip)
Length
100 cm
Length
200 cm
Length
300 cm
HC 920 • HC 940 • HC 960
large tip
small tip
Spray width at about 30 cm
removal of spray object
Pressure 100 bar (10 MPa)
5 - 35 cm
5 - 50 cm
8 - 55 cm
10 - 60 cm
10 - 40 cm
Order no.
0096 015
Order no.
0096 016
Order no.
0096 017
GB
=
low pressure
=
high pressure
Flat jet
Use
adjusting tip
Order no.
Paints
0999 057
Paints, fillers
0999 053
Paints, dispersions
0999 054
Rust protection
paints - dispersions
0999 055
Large-area coats
0999 056
Tip extension
15 cm, F-thread, Order no. 0556 051
30 cm, F-thread, Order no. 0556 052
45 cm, F-thread, Order no. 0556 053
60 cm, F-thread. Order no. 0556 054
Appendix
Contact protection
for the flat jet adjustment tip
Order no.
0097 294
15 cm, G-thread, Order no. 0556 074
30 cm, G-thread, Order no. 0556 075
45 cm, G-thread, Order no. 0556 076
60 cm, G-thread. Order no. 0556 077
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