Adjust the Electrostatics

1. Shut off the fluid supply.

1.Trigger the gun, then turn on the turbine air (TA). See FIG. 12..

2.Refer to Table 2 to set the proper pressure at the turbine air hose inlet when air is flowing. Do not exceed these pressures as there is no added bene- fit and turbine life could be reduced.

Operation

Table 2: Dynamic Turbine Air Pressures

Turbine Air

Air pressure at turbine air hose

Hose Length

inlet for full voltage

ft (m)

psi (bar, MPa)

 

 

 

15

(4.6)

54 (3.8, 0.38)

 

 

 

25

(7.6)

55 (3.85, 0.38)

 

 

36 (11)

56 (3.9, 0.39)

 

 

50 (15.3)

57 (4.0, 0.40)

 

 

75 (22.9)

59 (4.1, 0.41)

 

 

 

100

(30.5)

61 (4.3, 0.43)

 

 

 

3.Check the voltage output of the gun using a high voltage probe and meter or by reading the ES (kV) Display Module.

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 34 to correct voltage problems.

309298J

21

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Graco Inc 244592, 309298J, TI1713A, PRO Auto Xs AA Adjust the Electrostatics, Dynamic Turbine Air Pressures

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