Nordson-EFD-MC800-Operating-Manual.pdf - 第30页

MicroCoat MC800 Lubrication Systems 30 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. T r oubleshooting Problem Possible Cause and Corr…

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MicroCoat MC800 Lubrication Systems
29www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
MC685M and MC686M Tanks
Part # Description
7002004 Blue urethane hose
7020446 Viton O-ring for filler
7020425 (2) Neoprene gaskets for acrylic tube
7020427 (2) Viton gaskets for acrylic tube
7020432 Pressure relief valve 2.76bar (40psi)
7022195 Push-in fitting, tank inlet
7020422 Acrylic tube 6.50" D x 8.96" L (one gal)
7020438 Acrylic tube 6.50"D x 16.35"L (two gal)
7022188 1/8" BSPP x 6 mm capbarb fitting, tank outlet
7022175 Black urethane hose
7020442 Filler cap
7020436 Nickel-plated brass drain plug
7020429 Stainless steel float switch kit (includes connector, wiring & strain reliefs)
7022156 Lubricant filter kit
7017347 Lubricant filter element, (4) per box
Replacement Parts (continued)
MicroCoat MC800 Lubrication Systems
30 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Troubleshooting
Problem Possible Cause and Correction
Air pressure regulator
will not maintain set
pressure
Contaminated air supply. Remove the controller cover
to access the regulator. Remove the brass hex plug,
spring, and poppet from the regulator. Clean the
poppet and reinstall the poppet, spring, and plug.
No lubricant flow to
valve
Tank pressure may be too low. Minimum operating
tank air pressure is 0.83bar (12psi).
Hose connector may not be pushed fully into the fluid
outlet fitting on the rear panel of the controller. Ensure
connector is firmly seated.
Check fluid hose for kinks.
Valves do not turn on Supply pressure to controller must be at 4.1bar
(60psi).
Lubricant flows but
valve does not spray
Air cap may be clogged. Be sure oil tank filter is clean.
Remove air cap and clean the inside of the air cap
and the outside of the nozzle. Refer to “Spray Valve
Maintenance” on page 25.
Nozzle air pressure regulator may be set too low.
Increase pressure as needed. Normal working range is
within 0.55–1.03bar (8–15psi).
Valve drips after
shutdown
Dripping can be caused by improper seating of the
needle in the nozzle. Clean the needle and nozzle, and
replace any worn or damaged parts.
Ensure nozzle is tight to seat the needle properly.
MicroCoat MC800 Lubrication Systems
31www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Technical Data
Control air input from solenoid
4.1bar (60psi) min.
Valve, nozzle air
Constant air input
4.1bar (60psi) min.
Tank air
Valve, control air
Pilot valve
Regulator, 0–2.07 bar
(0–30 psi)
System pressure ON / OFF
Regulator,
0–2.07 bar
(0–30 psi)
Auto/Run
Manual/Setup
Air Flow Schematic
Fluid Flow Schematic
6
Pressure
switch
Fluid inlet
Fluid
outlets
Flow
controls