JCHADWICK 4400M, Руководство пользователя

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TROUBLE SHOOTING
Dispensing gun fails to pressurize cartridge.
Damaged piston slide. Check piston slide and replace if necessary.
Compound does not bond to backing paper.
Wrong side of backing paper used. See backing paper instructions.
Material cures in the nozzle.
Stop/Start operation or nozzle attached for a long period before use.
Replace nozzle and proceed without delay.
Material does not dispense from the nozzle after replacing previous
nozzle.
Cartridge ports have cured over. Remove cured material or discard
cartridge. The nozzle can be used as a seal for up to 4 months.
When using a new cartridge the first part of the replica does not
cure.
Cartridge not leveled before attaching nozzle. Cartridge will not work
satisfactorily with subsequent nozzles. To level the cartridge: prior
to fitting nozzle, dispense small amount of material until an even
amount issues from both cartridge ports.
Material cures too quickly or too slowly.
Incorrect grade being used for the ambient temperature. Choose a
grade appropriate for the conditions. See compound chart.
Air bubble entrapment.
Poor application. Keep the nozzle in contact with the surface. For
blind holes place the lip of the nozzle at the bottom of the hole.
Replica distorts and resolution is poor when examined under a
microscope.
Replica too soft when removed due to incomplete curing. Extend
curing period.
Replica surface does not cure.
Cure inhibited by surface contamination e.g. grease, oil, etc. Clean
surface with solvent/ suitable cleaning agent and reapply compound.
Replica breaks during removal.
Severe re-entrant geometry or replica not completely cured. Allow
adequate curing time. Remove slowly applying constant pressure.
Excessive voids in replica when using thixotropic materials.
Air entrapment due to poor application. Keep the nozzle in contact
with the surface. Overlap runs and use backing paper.
Replica adheres to surface.
Mechanical attachment to fibrous or porous surface. Remove slowly
applying constant pressure.
Base piston on cartridge leaks.
Solution: Excessive pressure on dispensing gun due to nozzle
blockage. Remove cured material if possible or replace cartridge.