vc999 RS420, Maintenance Manual

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TROUBLESHOOTING GUIDE
GAS FLUSH SYSTEM
NO GAS IN PACKAGE (cont’d)
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Check wiring to PLC
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Change or clean valve V14 on seal station side frame
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Gas input pressure too high or too low
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Increase gas flushing time
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Change gas tank
LONGITUDINAL CUTTING
UNEVEN CUT
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Check condition of blades
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Check alignment of blade in support rail
MAINTENANCE SCREEN MESSAGES
Check pump oil
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Check vacuum pump oil and reset counter afterwards
Change pump oil
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Change vacuum pump oil and reset counter afterwards
Oil chains
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Inspect chains and oil chains if necessary
Grease bearings
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Grease bearings and reset counter afterwards
Check lubricator
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Fill up mini-lubricator unit with oil
Grease cross cut
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Grease cross cut pneumatic cylinder
POOR SEAL QUALITY
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Check seal area for product contamination.
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Check for proper film path on top and bottom web.
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Check seal gasket.
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Check seal temperature setting.
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Check seal pressure regulator.
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Check seal time setting in program.
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Check seal valve activation.
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Check air line to seal die top cylinders for damage or possible disconnection.
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Check seal plate for proper travel.
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Check the seal cylinders for damaged return springs or cylinder rod damage
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Check seal cylinder rod t-seals for damage