13
SCUBAPRO R390 – R380 Second Stages
Trouble Shooting Guide
Symptom
Correction
Tools Needed
Continuous slow leak from
second stage
Readjust orifice or Nyloc nut
Replace poppet, seat or spring
Universal tool/ ¼” nut driver
Continuous slow leak from
second stage
High IP – See first stage trouble shooting
Universal tool/ Pneumatic
adjustment tool
Inhalation effort is lower than
specification
Tighten nyloc nut (3 threads maximum)
Replace spring
Universal tool/ ¼” nut driver
