Thermo Scientific Sarasota FD900, User Manual

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Maintenance
Thermo Fisher Scientific User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
5-3
RTR900 Maintenance Schedule
Frequency Tasks
Two years /
50 cycles 1. Check the gaskets and vent valve for signs of leakage.
2. Check the gland nut for signs of leakage and tighten if necessary.
3. Retract the density meter and clean and inspect the jackscrew thread for
excessive thread wear, bending, or other signs of deterioration. If any sign of
wear or damage is found on the jackscrew, perform the steps outlined in
“Five Years/100 Cycles”.
Five years /
100 cycles 1. Check the gaskets and vent valve for signs of leakage.
2. Check the gland nut for signs of leakage and tighten if necessary.
3. Retract the instrument.
4. Remove the retractor from the isolation valve. Remove the instrument from
the jackscrew, and remove the old gland packing.
5. Wind the jackscrew out of the seal housing.
6. Clean the retractor parts with a brush and solvent. Do an overall
inspection for damage or excessive wear.
7. Rebuild with new gland nut packing and O-ring. Refer to “Gland Packing”.
8. If excessive wear is found, the unit should be inspected by an approved
service agent or returned to the factory for a complete overhaul.
Ten years /
200 cycles 1. The unit should be inspected by an approved service agent or returned to
the factory for full service.