Nordson Compact Manual Iso-Flo Voltage-Block, Manual

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Troubleshooting
5-3
E 1995 Nordson Corporation
All rights reserved
108 390A
Issued 10/95
Manual 10-10
Problem Possible Cause Corrective Action
5. Lubricator filter contains
coating material
Pump seals are worn, coating
material is leaking
Replace or repair pump seals.
6. Pump is making noise Air is in fluid lines Turn off electrostatic voltage, open
cabinet door, and trigger spray device
into the spray booth or a grounded
waste container to purge air.
7. Shuttle is not closing to
refill pump
Air is leaking from the atomizing air
hose or fittings
Repair or replace air hoses or fittings.
Make sure you use sealant on fitting
threads.
Door valve is malfunctioning Turn off electrostatic voltage, open
cabinet door. Shuttle should close when
door is opened.
Sync valve is malfunctioning Replace sync valve if it does not shift in
response to air pressure.
8. Shuttle is not
disengaging when spray
device is triggered
System air pressure is too low Increase system air pressure.
Cabinet door is open Close the cabinet door.
Cabinet door is not making contact
with door valve push-button
Make sure door valve push-button is
depressed when door is closed.
Pilot valve is malfunctioning Replace valve if it does not shift in
response to air pressure in the line.
9. Shuttle couplings leaking Dry female coupling shaft Grease spring and shaft with O-Ring
lubricant and a stiff brush.
Male coupling ball and seat not
sealing due to contamination
Flush with cleaning solution.
Disassemble coupling and clean, if
necessary.
Dried coating material is on the
sealing surfaces of couplings
Clean couplings with a compatible
cleaning solution. If necessary,
disassemble couplings and clean.
Coupling O-rings damaged or out of
grooves
Disassemble couplings and repair.
2. Troubleshooting
Procedures
(contd.)