Adjust The Electrostatics; Spraying; Triggering The Fluid Alone; Shutdown - Graco HA1M10 Instructions-Parts List Manual

Operation

Adjust the Electrostatics

1. Turn on the turbine air (TA) and adjust the air pres-
sure per the settings in Table 1 . Set the proper
pressure at the turbine air hose inlet when air is
flowing.
Table 1. Approximate Dynamic Turbine Air
Pressures
Turbine Air Air pressure at turbine air hose
Hose Length
ft (m)
15 (4.6)
25 (7.6)
36 (11)
50 (15.3)
75 (22.9)
100 (30.5)
2. Check the turbine speed of the gun by checking the
indicator light on the standard gun body or for the
smart gun check the actual turbine speed on the Pro
Xp Auto Control Module. See the following table.
Adjust the air pressure as necessary to keep the
indicator light green or the values within 400-750
Hz.
NOTE: Smart models display values not color indicator
lights.
Table 2. Indicator Colors/Values
Indicator
Color
Green When spraying, the indicator should remain
400-750 green, indicating sufficient air pressure to
Hz the turbine.
Amber If the indicator changes to amber after 1
<400 second, the air pressure is too low. Increase
air pressure until the indicator is green.
Red If the indicator changes to red after 1 sec-
>750 ond, the air pressure is too high. Decrease
air pressure until the indicator is green.
Excessive turbine speed can shorten the
bearing life and will not increase the voltage
output.
Check the voltage output of the gun using a high voltage
probe and meter or by reading the Pro Xp Auto Control
Module.
NOTE: The gun's normal high voltage reading is 60-70
kV. If a ball end high voltage measurement probe is
used, the gun voltage will rise to about 85 kV. This will
happen with all resistive electrostatic guns.
See Electrical Troubleshooting on page 27 to correct
voltage problems.
18
inlet for full voltage
psi (bar, MPa)
54 (3.8, 0.38)
55 (3.85, 0.38)
56 (3.9, 0.39)
57 (4.0, 0.40)
59 (4.1, 0.41)
61 (4.3, 0.43)
Description

Spraying

To reduce the risk of electric shock, do not touch the
gun electrode or come within 4 in. (10 cm) of the
nozzle during gun operation.
1. Apply a minimum of 60 psi (4.2 bar, 0.42 MPa) air
pressure to the cylinder air fitting (CYL) to activate
the on/off sequence of atomization air (A1), fan air
(A2), and fluid (P). See F
2. Turn the gun functions on and off by using the air
solenoid valves on the cylinder (CYL) and turbine
(TA) air supply lines.
3. To change a smart model to a lower voltage setting,
see the Pro Xp Auto Control Module manual
332989.
If any fluid leakage from the gun is detected, stop
spraying immediately. Fluid leakage into the gun
shroud could cause fire or explosion and result in
serious injury and property damage. See Check for
Fluid Leakage on page 21.

Triggering the Fluid Alone

1. Shut off and relieve the air pressure to the atomiza-
tion (A1) and fan (A2) air lines, using the bleed-type
air shutoff valves.
2. Apply 60 psi (4.2 bar, 0.42 MPa) air pressure to the
cylinder air fitting (CYL) to trigger the fluid.

Shutdown

To reduce the risk of an injury, follow the Pressure
Relief Procedure when you stop spraying and
whenever you are instructed to relieve the pressure.
1. Flush the gun, see Flushing, page 19.
2. Follow the Pressure Relief Procedure, page 16.
3. Clean the equipment. See Maintenance on page
19.
2.
IGURE
333011D