© MMXIX Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 190625006
SF350-21
SuperFlow® 350 Regulator
Reassembly of the SuperFlow® 350 Demand Regulator
B
CAUTION
The legs of the lever must be properly
aligned in the same plane. If one leg is
up and the other is down, the regula-
tor will not perform properly.
Use the disk end of the KMDSI
wrench to bend the lever down.
12) Replace the diaphragm and the cover. Test
the purge button. Continue until proper toler-
ances are reached.
LEG, LOWER
LEG, LOWER
FEET
LEG, UPPER
ROLLER LEVER ARM
Note that the legs of the roller lever must
be properly aligned and in the same
plane for the lever to work correctly.
1.7.2 SuperFlow
®
350 Regulator Steady
Flows When Pressured Up: Special Tools
Used (No P/N 525-620 KMDSI Tool Kit)
Tools required:
• Small Flat Blade Screwdriver.
• Small Jewelers Screwdriver or Metal Scribe.
• Needle Nose Pliers.
If using KMDSI regulator tool kit, see "1.7.1 Tun-
350 Regulator" on page SF350-19
The demand regulator is rugged and reliable.
However, to maintain optimum performance it
should be checked prior to each diving day in ac-
cordance with the brief procedure Demand Reg-
ulator Test for Correct Adjustment, Fully
Assembled.
If adjustment is necessary after completing the
demand regulator test "1.2.4 SuperFlow
Demand Regulator Bias Adjustment Servicing,
Demand Regulator on the Helmet" on page SF350-6,
and the KMDSI P/N 525-620 tool kit is not avail-
able, proceed as follows:
1) Remove the regulator clamp, cover and dia-
phragm.
2) Adjust the regulator adjustment knob all the
way in. Finger tight only.
3) Pressurize the regulator to between 120-150
p.s.i.g. (8.5-10 bar).
4) If the regulator is not free flowing, slowly back
out on the adjustment knob until a slight free
flow is heard and then rotate the adjustment
knob in (clockwise) ¼ turn and depress the purge
button momentarily. Repeat this procedure until
the gas flow stops.
Usually at this point the regulator adjustment
knob will be between 5 and 7 turns out.
NOTE: If when backing the adjustment knob out
from the full “in” position, the regulator starts
free flowing at less than five turns, then this usu-
ally indicates insufficient free play at the lever.
There are several issues that could cause the
regulator to free flow, even when the adjustment
knob is turned all the way in. These are as fol-
lows:
A) The regulator was rebuilt and the lock
nut is too tight. If this is the case, the nut
must be loosened.
B) The washer was never removed from the
