24
© 2021 Nordson Corporation
Monthly Maintenance Procedures
Part or Material
Procedure
Strainer or inline supply filter
Clean the strainer or inline supply filter.
Pump coupling
Check the pump coupling for loose hardware or wear.
Pressure relief valve
Check the pressure relief valve by following these steps:
1.
Turn off the applicators.
2.
Make sure the drain-off rod is in the waste container.
WARNING:
Do not exceed 93 bar (1350 psi).
3. Turn the back pressure regulator knob clockwise until the opening pressure (page
21 ) is reached. If the valve does not open, adjust it as described in
Pressure
Relief Valve Adjustment
4. Turn the back pressure regulator knob counterclockwise to reduce the pressure.
5. Repeat steps 4 and 5 a minimum of three times to ensure the valve is operating
properly.
Annual Maintenance Procedures
Refer to the
EP2 Three-Piston Pump
manual for disassembly and repair procedures:
•
Examine the shaft seals and piston assemblies in the oil-filled section. Replace if worn.
•
Examine the cam shaft bearings in the oil-filled section. Replace the pump if the
bearings are worn.
• Replace the diaphragm cartridges and valve assemblies.
