Graco Inc 3500WB, 308584, 222700 manual Check the Electrical Grounding, Installation

Installation

Check the Electrical Grounding

1.Have a qualified electrician check the electrical grounding continuity of the spray gun and air hose.

2.Make sure the red Graco electrically conductive air hose (EE) is connected to the gun and the hose ground wire is connected to a true earth ground. See Fig. 7.

3.The air and fluid supplies to the fluid hose must be turned off and the fluid hose must not have any fluid in it when checking the continuity.

4.Turn the gun ES ON-OFF lever (DD) to OFF.

5.Measure the resistance between the gun handle (AA) and a true earth ground (BB) with an ohmme- ter (CC). Resistance should not exceed 100 ohms.

6.If the resistance is greater than 100 ohms, check the tightness of the ground connections, and be sure the air hose ground wire is connected to a true earth ground. If the resistance is still too high, replace the air hose.

KEY- Fig. 7

AAGun Handle

BBTrue Earth Ground

CCOhmmeter

DDES ON-OFF Lever

EEGraco Electrically Conductive Air Hose

EE

DD

AA

CC

Fig. 7

BB

05150B

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