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Symptom
Continuous slow leak from
second stage
Continuous slow leak from
second stage
Inhalation effort is lower than
specification
SCUBAPRO R390 – R380 Second Stages
Trouble Shooting Guide
Readjust orifice or Nyloc nut
High IP – See first stage trouble shooting
Tighten nyloc nut (3 threads maximum)
Correction
Replace poppet, seat or spring
Replace spring
Tools Needed
Universal tool/ ¼" nut driver
Universal tool/ Pneumatic
adjustment tool
Universal tool/ ¼" nut driver
13
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Summary of Contents for Uwatec R390
- Page 1 SCUBAPRO R390 – R380 Second Stages Trouble Shooting Guide Symptom Correction Tools Needed Continuous slow leak from Readjust orifice or Nyloc nut Replace poppet, seat or spring Universal tool/ ¼” nut driver second stage Continuous slow leak from High IP – See first stage trouble shooting...
- Page 2 SCUBAPRO R390 – R380 Second Stages Trouble Shooting Guide Symptom Correction Tools Needed Inhalation effort is higher Readjust orifice or Nyloc nut Use a supply pressure of at Readjust nyloc nut - Lever Universal tool/ ¼” nut driver than specification...
- Page 3 SCUBAPRO R390 – R380 Second Stages Trouble Shooting Guide Symptom Correction Tools Needed Violent free flow from Replace seat or spring Replace orifice/o’ring Readjust orifice Various second stage VIVA does not provide Readjust nyloc nut - Lever too low Readjust orifice or nyloc nut Universal tool/ ¼”...