INSTALLATION, OPERATION and MAINTENANCE Figure 930 Air & Vacuum Valves The valves should remain in a clean, dry and INTRODUCTION weather protected area until installed. For long This manual will provide the information to term storage (greater than 6 months) the rubber properly install, operate and maintain the valve surfaces of the seat should be coated with a to ensure a long service life.
eliminated. Torque bolts in an alternating TROUBLESHOOTING • pattern in graduated steps. If leakage occurs Valve Does Not Close / Fluid Leakage wait 24 hours and re-torque the bolts but do not Verify debris has not collected on the seat compress the gasket more than 50% or exceed preventing tight closure bolt maximum torque rating.
PARTS LIST REPLACEMENT PARTS ½” to 4” Figure 930 Genuine replacement parts are available from your local VAG/GA Industries representative or Item Name Standard Material Body Cast Iron from the factory: Cover Cast Iron Seat Buna-N Rubber VAG USA, LLC...