Repair 7-9 1999 Nordson CorporationAll rights reserved 107 962HIssued 11/99Manual 21-19See Figure 7-2 to locate the parts referenced in this procedure.After disassembling the gun to replace the resistor service kit andelectrostatic cable, continue with the steps provided here to clean theAN-8 Plus gun.CAUTION: Keep the packing cartridge clean and free of burnholes or cracks; otherwise, high-voltage breakdown can occurand damage the equipment.1. Inspect the packing cartridge/needle assembly (32) carefully for burnholes or cracks. Install a new packing cartridge/needle assembly ifyou see any signs of wear or damage.2. Inspect all the gun parts, especially seals, gaskets, and O-rings, forsigns of wear or damage, and replace parts as required.3. Clean the AN-8 Plus gun and replace the O-rings as follows.a. Lubricate all new O-rings with O-ring lubricant before installingthem into the gun.CAUTION: Do not use metal tools to clean the air cap or fluidtip. Metal tools can damage the precisely drilled holes anddistort the fan pattern.b. Clean the gun handle (17) and gun extension (30) with acompatible cleaning solution. Use a soft bristle brush that iscompatible with the cleaning solution, or use a wooden toothpickto clean the fluid tip (2) and air cap (1).c. Thoroughly dry all the parts before assembling the gun.4. Discard all damaged or worn parts. Do not attempt to re-use theseparts.NOTE: Always apply dielectric grease into the high-voltage bore of thegun after disassembling or repairing the gun, or after removing the cablefrom the gun. Refer to Applying Dielectric Grease in this section.6. Replacing Parts andCleaning the Gun

Issued

Manual

Introduction

Personal Safety

High-Pressure Fluids

Fire Safety

Halogenated Hydrocarbon Solvent Hazards

Safety Labels

H Manual

Options

Typical Heated Circulating System

Theory of Operation

Installing the Cable to the AN-8 Plus Gun

Installing the Gun

Installing the Air Flow Switch, Hoses, and Fittings

Securing the Hoses and Gun

Checking the Gun After Installation

Installing a New Extension Resistor Kit and Cable

Daily

Gun Maintenance

Mechanical Problems

Electrostatic Problems

Disassembling the Gun

Internal Parts

Replacing the Extension Resistor Service Kit and Cable

Replacing the Resistor Only

Replacing Parts and Cleaning the Gun

Assembling the Gun

External Parts

Final Assembly and Adjustments

Gun Assembly

Recommended Spare Parts

Air Valve Service Kit

Handle Replacement Kit

Extension Service Kit

Optional Isocoils

High-Conductivity Isocoil

specifications

Air Quality

Nordson AN-8 Plus Customer Product Manual

AN-8 Plus