SF350-8
© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
Regulator & Exhaust System Overhaul
SuperFlow® 350 Regulator
Replace the adjustment shaft and O-ring if any
damage is found.
7) Replace washer.
8) Replace the O-ring.
9) Inspect the inside of the adjustment tube on
the regulator body to be sure there is no corro-
sion and the adjustment assembly can travel
freely. Ensure the alignment tube is not bent or
misaligned from impact, and that the threads are
clean.
NOTE: If the inside of the adjustment tube is
corroded, this indicates saltwater intrusion into
the adjustment tube and assembly. The demand
regulator requires removal from the helmet and
cleaning per "1.3.1 SuperFlow® 350 Demand
Regulator Removal from Helmet or Mask" on
1.2.5 Reassembly of the SuperFlow
®
350
Regulator Adjustment System
Tools required:
•
3/4
inch Open-end Wrench Attachment on
Torque Wrench
• Silicone grease, or oxygen compatible grease
if used for oxygen service.
1) Lightly lubricate the piston and spacer and
place the piston back in the regulator adjustment
tube, followed by the spring set, and spacer.
2) Lightly lubricate the adjustment shaft end
and threads, install the washer and the lightly
lubricated O-ring on the adjustment shaft.
3) Slip the packing nut over the adjustment shaft
followed by the adjustment knob.
4) Hold the shaft and rotate the knob until the
pin holes line up. Use the inlet valve holder from
the regulator tool kit to accurately align these
holes. Using a small hammer drive the retaining
pin back into place, until it is flush with the sur-
face of the adjustment knob.
5) Screw the adjustment knob assembly clock-
wise back into the regulator body leaving enough
packing nut exposed to place the wrench on it.
NOTE: Ensure the adjustment shaft rotates
smoothly.
6) Thread the packing nut onto the regulator
body and tighten with the ¾” torque wrench
see "Torque Specs" on page APNDX-19 for correct
torque, turn the knob all the way in and all the
way out making sure there is no interference.
7) With the inlet valve stem depressed into the
regulator body, insert the lever feet between the
washer and spacer then release the pressure on
the inlet valve.
1.3 Regulator & Exhaust System
Overhaul
1.3.1 SuperFlow
®
350 Demand Regulator
Removal from Helmet or Mask
Tools required:
• Torque Wrench and 1
3/8
inch Socket
•
1/4
inch Flat Blade Attachment on Torque
Screwdriver
• Torque Wrench and
11/16
inch Open-end At-
tachment
• Torque Wrench and
13/16
inch Open-end At-
tachment
• Torque Wrench and
7/8
inch Open-end At-
tachment
•
7/8
inch Open-end Wrench
• And/or P/N 525-625 Regulator Mount Socket
Wrench (in 525-620 Tool Kit).
1) To remove the regulator from the helmet or
mask, the bent tube should be disconnected first.
The bent tube assembly should be loosened at the
side block and disconnected from the regulator.
It may now be swiveled out of the way or com-
pletely removed.
2) Remove the whiskers from the port retainer by
removing the screws. Take care not to lose the
spacers, kidney plates or zinc anodes.
