Conducting the Test
Clean Up
Your data
At least one purge of gray material performed.
(To purge: About 5 grams, wait 2 minutes hand purge)
Clean MI barrel after purge (2 patches, double pass, two times).
Reinstall plunger and let machine re-lock the temperature.
Weigh out 4.6 grams 0.1 gram of Gray, Polypropylene, Lot # 13891 material.
DO THESE AS QUICKLY AS POSSIBLE
Pour 2/3 material through funnel into barrel, pack until little
movement occurs when pushing on packer.
Pour in remainder of material, Pack as before.
Wipe plunger before placing into barrel.
Seat plunger guide bushing.
Place flag on arm & in flag hole.
Place weight on plunger.
Press RUN button.
Make cut and Press RUN button when first scribe reached.
Make second cut when MTD A time expired (beep)
The test should run to completion by itself , enter the mass of extrudate collected
over the cut time then press END then YES to print to the mini printer or
Okidata 320. Push down on weight hard to purge remaining material out.
Always use two patches (must have enough frictional forces against barrel to
clean). Eight or more strokes completely up and down the barrel. Toss patches
& repeat. Or use the power cleaning tool and make two cleaning passes with
fresh patches each time.
If the last run of control:
Push the die up and out using the orifice removal tool.
Hold the die in a glove and run a drill bit through the die.
Run MI die brush through the orifice.
Clean top and bottom surfaces.
Re-clean the barrel to get area blocked by orifice.
Leave die out so it can be inspected before next runs.
Leave die on cleaning drill bit.
TURN MACHINE OFF ONLY IF IT IS CLEAN.
Data will be displayed on the VFD or printed if you have the printer option.
Follow the prompts on the VFD to END or SAVE the run.
Series 4000 Melt Indexer Operation Manual A-Standard Operating Procedure
47
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