6
© 2007 ITW Finishing Systems and Products
Specification
Air supply connection
-
Universal
1
/
4
BSP/NPS
Fluid Supply Connection
-
Universal
3
/
8
BSP/NPS
Maximum static inlet pressure
-
P1 = 9 bar (130 psi)
Maximum static fluid pressure
-
P2 = 14 bar (200psi)
Gun Weight
- 695
g
Maximum Service temperature
-
40°C
Materials of Construction
Gun body
- Polished
Aluminium
Nozzle
-
See chart 3
Needle
-
See chart 3
Installation
Operation
1. Attach air hose to connector (13).
Recommended hose size 8 mm
bore. The hose must be conductive
and electrical bond from the
spraygun to earth should be checked
with an ohmeter. A resistance of less
than 10
6
Ω
is recommended. The air
supply should be filtered and
regulated.
2. Attach fluid supply hose to the Fluid
Inlet connector (17).
E
E
Mix, prepare and filter the coating
material to be sprayed to the
manufacturer’s instructions. Adjust the
spray gun controls, air and coating
material pressures before filling the cup
or turning on the material supply.
1.
Needle adjustment.
Fully open
needle adjusting screw (10) by turning
counter-clockwise until the first thread
shows.
2.
Fan pattern adjustment.
Turn
adjusting screw (5) to fully open
position, by turning counter-clockwise.
3.
Air control valve.
Open air adjusting
screw (14) fully by turning counter-
clockwise (JGA-558 models only).
4.
Air supply pressure.
Regulate to 3.0
bar (43 - 45 lbf/in²).
5.
Pressure feed coating material
supply.
Regulate pressure to 0.5 bar
(7 lbf/in²).
6. Turn on coating material and air
supplies.
7.
Test spray.
If the finish is too dry or
application too slow, reduce air
pressure or increase coating material
supply pressure. If the finish is too
wet, reduce the coating material
supply pressure, or turn the needle
adjusting screw (10) fully clockwise
then gradually open until the desired
pattern is achieved.
8. If the atomisation is too coarse
increase the air pressure, if too fine,
reduce the air supply pressure or turn
air control valve (14) gradually
clockwise.
9.
NOTE:
The spray width can be
reduced from fan to round by turning
fan adjusting screw (5) clockwise.
10.
Using the spray gun.
Hold the gun
perpendicular to the spray surface
always. Arcing or tilting the gun will
result in an uneven deposit of coating
material. The recommended spray
distance is 150- 200 mm (6" - 8").
Spray the corners and edges first.
