Adjusting the Spray Pattern
1.To achieve full fan pattern, open the pattern adjust- ment valve (25) by turning the knob fully counter- clockwise.
(Close)
(Open)
25
ti4841a
FIG. 7
2. Trigger gun and adjust gun air pressure:
|
| Hose Inlet Air |
| Gun Inlet Air | Pressure |
| PSI (kPa, bar) | |
| Pressure | 25 ft 5/16 in. |
| PSI (kpa, bar) | (7.9 mm) ID hose |
|
|
|
HVLP Gravity | 29 (210, 2.1) | 50 (345, 3.4) |
|
|
|
HVLP | 40 (280, 2.8) | 72 (480, 4.8) |
Pressure |
|
|
|
|
|
Compliant | 29 (210, 2.1) | 41 (280, 2.8) |
|
|
|
Airspray | 40 (280, 2.8) | 52 (345, 3.4) |
gravity feed |
|
|
|
|
|
Airspray | 40 (280, 2.8) | 56 (410 4.1) |
pressure feed |
|
|
|
|
|
WARINING
PRESSURIZED EQUIPMENT HAZARD
To avoid injury, never open the fluid adjustment knob (21) beyond the one half turn indicated in step 3 in Adjusting the Spray Pattern. If the red band on the knob stem (21) is visible, the knob is not adjusted correctly and could result in serious injury. Repeat step 3 in Adjusting the Spray Pattern.
Setup
3.To establish the correct fluid flow, turn the fluid adjustment knob (21) counterclockwise until no restriction of the trigger movement is felt, then turn out another half turn. When the knob is turned far enough, the trigger should be able to touch the gun handle when the gun is triggered.
(Open) | (Close) |
21
ti4840a
FIG. 8
4.Pressure feed only: Adjust fluid pressure to achieve desired fluid flow rate
5.To reduce fluid flow, turn the fluid adjustment knob (21) clockwise.
• If the fluid adjustment knob is turned clockwise all the way, the gun will emit only air.
•If you cannot achieve the correct fluid flow with the fluid adjustment knob, a different sized noz- zle may be necessary. For smaller fluid flow, use the next size smaller nozzle. For a larger fluid flow, use the next size larger nozzle.
(Open) | (Close) |
21
ti4840a
FIG. 9
6.Spray a test pattern. Evaluate the spray pattern size and atomization.
310692C | 11 |