Repair 7-9 1997 Nordson CorporationAll rights reserved 106 915CIssued 11/97Manual 21-27To assemble an air valve into the gun body, perform the following steps:1. See Figure 7-4. Insert the seal (9), lip or open side out, into theair valve body (12).2. Lubricate and install the O-ring (7) on the air valve body (12).3. Lubricate and install the O-ring (8) on the air valve body (12).4. Install the stem and seal assembly (11) in the air valve body (12).5. Push the conical spring (10), narrow end first, onto the stem and sealassembly (11).CAUTION: Do not overtighten parts. Failure to observe thisprecaution will result in equipment damage.6. Use the supplied nutdriver to install the assembled valve into the gunbody (6). Do not overtighten.To install the thumb wheel and air needle in the gun body, perform thefollowing steps:1. See Figure 7-4. Lubricate and install the O-rings (4) in thethumb wheel (5). Lubricate and install the O-ring (3) on the airneedle (2).2. Thread the captive screw (1) into the air needle (2).3. Insert the thumb wheel (5) into the gun body (6).4. Align the air needle (2) with the slots in the gun body (6). Insert theneedle into the body until it contacts the thumb wheel (5).5. Hold the air needle (2) in position while turning the thumb wheel (5)upward to engage the threads of the needle. Once the threads areengaged, remove the captive screw (1). Continue turning thethumbwheel upward until it stops.6. Install the needle stop (13) into the air needle (2) access hole.Air ValveThumb Wheel and Air Needle

Issued

Introduction

Qualified Personnel

Installation

Operation

Less-Obvious Dangers

Action in the Event of a System or Component Malfunction

Manual

Material and Solvent Precautions

Disposal

Connections and Controls

Standard Nozzle Installation

Nordson Air and Fluid Hose Installations

Preparation

Spraying the Substrate

Troubleshooting 1. Introduction

Troubleshooting Procedures

Spray Pattern Faults

Repair 1. Introduction

Disassembly

Packing Cartridge and Fluid Needle

Air Valve

Assembly

Final Assembly

Parts 1. Introduction

WM-1 Manual Waterborne Air Spray Gun without Hoses

Tools Illustration for WM-1 Manual Waterborne Air Spray Gun without Hoses

WM-1 Manual Waterborne Air Spray Gun with Hoses

Tools Illustration for WM-1 Manual Waterborne Air Spray Gun with Hoses

Kit Parts List

Air Valve Service Kit

Fluid Seal Service Kit

Fluid and Air Seal Service Kits Illustration

Accessory Parts List

Fluid and Grounded Air Hose Accessories Illustration

specifications

declaration of conformity

Nordson WM-1 Customer Product Manual

WM-1