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741MD-SS Series Dispense Valve
MAINTENANCE & PARTS GUIDE
Electronic pdf files of EFD
available at www.efd-inc.com/manuals.html.
IMPORTANT!
Save this Sheet.
Maintenance or
Supervisors
A NORDSON COMPANY
For EFD sales and service in over 30 countries,
contact EFD or go to www.efd-inc.com/contact
EFD, Inc.
East Providence, RI USA
800-556-3484; +1-401-434-1680 (outside the USA)
info@efd-inc.com
EFD International Inc.
Dunstable, Bedfordshire, UK
0800 585733 or +44 (0) 1582 666334
Ireland 00800 8272 9444
europe@efd-inc.com
EFD, Inc., Asia
China: +86 (21) 5854 2345
china@efd-inc.com
Singapore: +65 6896 9630 sin-mal@efd-inc.com
®
manuals are also
Forward to
Tool Crib
www.efd-inc.com
www.efd-inc.com
www.efd-inc.com/cn
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Related Manuals for Nordson EFD 741MD-SS Series
Summary of Contents for Nordson EFD 741MD-SS Series
- Page 1 741MD-SS Series Dispense Valve MAINTENANCE & PARTS GUIDE Electronic pdf files of EFD ® manuals are also available at www.efd-inc.com/manuals.html. IMPORTANT! Save this Sheet. Forward to Maintenance or Tool Crib Supervisors A NORDSON COMPANY For EFD sales and service in over 30 countries, contact EFD or go to www.efd-inc.com/contact...
- Page 2 Valve Disassembly and Reassembly Procedures CAUTION: To prevent damage, the valve must be disassembled starting at the fluid outlet end of the valve. Valve maintenance 6. Install new, lubricated O-ring on fluid body. Then install To thoroughly clean the fluid body and chamber into air cylinder replace needle packings: body.
- Page 3 Replacing piston and needle General Maintenance Kit assembly or piston O-ring #741MD-RK 9. Remove needle stroke control knob. Includes all O-rings, needle 10. Remove piston return spring and packing set and foil pack of thrust washers. Nye Lubricant #865 gel. 11.
- Page 4 Troubleshooting Guide No fluid flow 2. Turn the calibration knob (inner) • counterclockwise one full turn. If valve operating air pressure is too low, the valve will not open. Increase air 3. Install the new dispensing tip and pressure to 70 psi (4.8 bar) minimum. ensure that the retaining nut is tight- •...