StreamPro ADCP Operation Manual - global site

StreamPro ADCP Operation Manuald. Open the battery compartment door and remove the battery pack (see“Battery Replacement,” page 20).e. Loosen (do not remove) the four standoff bolts (M6) to vent the system.f. Once all four bolts have been loosened, remove the four bolts that attachthe housing cover to the housing assembly. Check inside the housingfor any discoloration or water damage. If in doubt, contact Teledyne RDInstruments.g. Clean the O-ring mating surfaces with a soft, lint-free cloth. Inspect thesurfaces for damage (see “Cover Plate O-Ring Inspection and Replacement,”page 23).h. When you are ready to re-assemble the StreamPro, see “StreamPro Reassembly,”page 23.8.6 StreamPro Re-assemblyTo replace the housing cover plate, proceed as follows.8.6.1 Cover Plate O-Ring Inspection and ReplacementThis section explains how to inspect/replace the StreamPro O-ring. A successfuldeployment depends on the condition of O-ring and the retaininggroove. Read all instructions before doing the required actions.We strongly recommend cleaning the O-ring whenever you disassemble theStreamPro. Inspecting and cleaning the O-ring should be the last maintenancetask done before sealing the StreamPro.a. Inspect the O-ring. When viewed with an unaided eye, the O-ring mustbe free of cuts, indentations, abrasions, foreign matter, and flow marks.The O-ring must be smooth and uniform in appearance. Defects mustbe less then 0.1 mm (0.004 in.).CAUTION. If the O-ring appears compressed from prior use, replace it.Weak or damaged O-rings will cause the StreamPro to flood.b. Clean and inspect the O-ring groove. Be sure the groove is free of foreignmatter, scratches, indentations, corrosion, and pitting. Run yourfingernail across damaged areas. If you cannot feel the defect, the damagemay be minor; otherwise, the damage may need repair.CAUTION. Check the O-ring groove thoroughly. Any foreign matter inthe O-ring groove will cause the StreamPro to flood.c. If a scratch is on the plastic housing flange O-ring groove, it may begently sanded using 600-grit (wet) sandpaper. Use care not to cause furtherdamage.P/N 95B-6003-00 (February 2008) page 23