M0726(2):LMFI Series 5000 Lab Melt Flow Indexer
13
English 02/2014
INSTRUMENT MAINTENANCE RECOMMENDATIONS
Daily:
Remove the orifice and clean thoroughly with brush and precision drill bit. Clean your
indexer barrel with cotton patches when hot. Piston should spin easily when placed into a
clean barrel.
Weekly:
Give good cleaning with brass brush. Use oven cleaner to clean the piston rod
exposed metal and orifice.
Monthly or Long Term:
Depending on your company policy, a calibration or calibration check
may be needed on a monthly, quarterly or yearly basis. It is a recommended that a repetitive
maintenance schedule be created for your instrument.
Clean unit:
Clean the dust and dirt out of the electronics module with clean air every six
months to one year, more often in dirty environments.
Perform this with power removed from
the system. Remove the orifice and clean thoroughly. Clean your barrel. Use oven cleaner to
clean the piston rod assembly and orifice.
Check Mechanical Tolerances:
All dimensions and tolerances per ASTM D1238 and ISO
1133-1. Piston tip diameter = 0.3730
”/9.474mm +/-0.0003”/0.0076mm; piston tip length =
0.2500
”/6.35mm +/- 0.0050”/0.127mm. Assembled piston rod weighs 100 grams. GO/NO-GO
gage works properly on the orifice. Orifice length = 0.3150
”/8mm +/- 0.0010”/0.0254mm.
Weights still weigh correctly. Digital Encoder calibration. Gages can be purchased from
Dynisco Polymer Test.
Barrel Diameter:
Once the barrel is extremely clean, all dimensional measurements are to be
made at room temperature it can be checked using a bore gage. Gage can be purchased from
Dynisco Polymer Test. At the time of manufacture, the barrel center bore measures
0.3760
”/9.55mm +/- 0.0002”/0.00508mm. All dimensions and tolerances per ASTM D1238
and ISO 1133-1.
Pneumatic Lift maintenance:
The guide rod and the pneumatic cylinder rod can be
lubricated. Dynisco Polymer Test suggests that WD-40 or machining oil be used as a lubricant.
You can also spray a small amount of WD-40 into the air manifold
through the manifold’s air
intake to lubricate all internal parts.
Ask for help:
Call Dynisco Polymer Test directly at (508) 541-9400 or visit
http://www.dynisco.com/polytest-services
and ask for technical support
.
To help us handle your
questions as quickly as possible, have the following items ready before you call:
1. Instrument name and model number (on back panel)
2. Instrument serial number (on back panel)
3. Current version of instrument firmware (Power up unit to see, version shown on
“About” screen under “Maintenance Tab”)
4. Computer system make and model (if applicable)
5. Current version of LaVA Suite software (if applicable)
