Installation3-6 1999 Nordson CorporationAll rights reserved107 962HIssued 11/99Manual 21-195. Use a clean, dry cloth to wipe any contamination from the fittings andthreads before installing them on the gun. Cleaning the fittings andthreads prevents an electrically conductive path to ground.NOTE: Conductive fluids used with the recommended fluid hosesand fittings must have a minimum resistivity of 4.5 megohm/cm;otherwise, the fluid can ground out the system.NOTE: All fluid connections that use a tapered thread must havethree to four wraps of PTFE tape. Wrap the tape away from the endof the fitting. The tape will tighten as you install the fitting, providingadditional electrical insulation.6. See Figure 3-1. Install a fluid hose with a 3/8-in. NPS female fittingbetween the fluid inlet port (3) on the cable adapter and the fluidsupply.7. Regulate the fluid supply pressure for a maximum delivery pressureof 5 bar (75 psi).WARNING: To prevent a fire hazard, make sure that youeffectively connect all electrically conductive objects near thespray operation to a true earth ground. Ungrounded conductiveobjects can accumulate an electrical charge great enough tocause a fire when they are discharged.8. Place the warning tag in a prominent location on the spray booth.CAUTION: Do not use a nylon tie wrap to bundle theelectrostatic cable. Nylon tie wraps can cause the cable to flexincorrectly and cause mechanical cable damage.Use the following steps to secure the hoses and gun.1. Use hook and loop tape or similar tying device to secure the fluidhose, air hose, and electrostatic cable into a bundle, and then securethe bundle to a solid object near the gun. Allow the bundle to flexwithout pulling to minimize the strain on the hoses during gunmovement.2. Ground all metal fittings to a suitable earth ground and keep them asfar away from the AN-8 Plus gun as possible.Installing the Air Flow Switch,Hoses, and Fittings (contd)4. Securing the Hoses andGun