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8 MAINTENANCE, SPARE PARTS, AND TROUBLESHOOTING
34
If helium concentration readings are consistently low, then the gas sample probe may
be plugged. First replace barb tip, LMSA108839 (item 2). If readings are still low, send
the probe assembly into LACO and a new internal tip assembly can be replaced (item
12). If additional seal washers are needed order part number LMSA0250 (item 11).
If leak rate readings are too high during testing the following items may need
replacement.
•
Diaphragm Pump (item 3)
•
Pump Diaphragm Seal (item 4)
•
Film disk (item 10)
The membrane pump is rated to around 2000 hours of typical usage.
Items 5, 6, 8, 9 can be used to configure with different vacuum connections
depending on the Leak Detector used.
LHCT03D & LHCT03D-R Operations and Maintenance Manual
LACO Technologies
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