User manual EFD 740V-HL

[. . . ] ® The 740V-HL hand-operated dispense gun is a rugged industrial lever-actuated fluid dispensing valve. The valve incorporates a quick-change fluid body for fast and easy cleaning. The fluid inlet fitting for 1/4" OD feed tubing and an assortment of dispensing tips are included. A NORDSON COMPANY Getting started . . . 1. [. . . ] 5. User's Guide 740V-HL Dispense Gun For assistance call 800-556-3484 or email tech@efd-inc. com Typical system setup #2000F755 Five micron filter regulator for clean, dry filtered factory air. Shutoff valve ® A NORDSON COMPANY For application assistance in the USA, call 800-556-3484. #61522 Hand-lever valve stand For EFD sales and service in over 30 countries, contact EFD USA or go to www. efd-inc. com/contact EFD Inc. , a Nordson Company 977 Waterman Avenue East Providence, RI 02914-1342 USA #615DTH 1. 0 liter tank accommodates a one pound bottle. Telephone: +1-401-434-1680 Fax: +1-401-431-0237 info@efd-inc. com www. efd-inc. com EFD is a registered trademark of EFD, Inc. 740V-HL-MAN-01 v072905 Service Normal cleaning is accomplished by purging with a solvent appropriate for the material being dispensed. To thoroughly clean valve chamber and replace needle packings: 1. Remove the fluid inlet fitting and tip adapter/needle seat assembly from the fluid chamber. Remove the fluid chamber from the cylinder body by turning counterclockwise until free. Then remove the O-ring from the fluid chamber. Remove the needle packings from the fluid chamber, using tool #7803 supplied with the valve. Insert through outlet end of fluid chamber and push out the packings. Remove any remaining packings and the packing spring from the needle. Clean the needle with a cloth dampened with solvent. Lubricate the needle with Nye Lubricants #865 grease and reinstall the needle packing spring and a new packing kit. Install a new O-ring (#7517) on the fluid chamber. Screw the cylinder onto the fluid chamber. [. . . ] Reinstall thrust washers, spring and cylinder cap. See Figure 3. Packing extraction tool #7803 Nylon thrust washer Nylon thrust washer Spring pilot Piston return spring Snap ring Cylinder cap CAUTION: Check the reservoir pressure gauge prior to performing any maintenance to assure that pressure is zero (0). To confirm this on EFD tanks: slide the shutoff valve on the air hose away from the tank, and open the pressure relief valve on the tank. For assistance, please call 800-556-3484. Cylinder body Stainless steel packing expander Packing seat Fluid chamber Piston and needle assembly O-ring O-ring Retaining washer Spring Needle packing assembly Needle packings Figure 1 Figure 2 Figure 3 [. . . ]