Magnum Venus Plastech ADVANTAGE - Manual (Page 21)

Advantage Gelcoater 17
O-Ring Maintenance
The flush tank’s O-ring expands and distorts if wetted by the solvent. O-
rings also distort (much more slowly) when exposed to solvent vapors.
Distorted O-rings will not hold an airtight seal and must be replaced.
However, the distorted O-ring can be reused. Simply put the O-ring in a
well-ventilated area to dry out. When it returns to its original shape, it may
be used on the flush tank hatch again. We have supplied a
second O-ring so you do not have to wait for the original ring to recover.
Pressurize Flush Tank
Turn on air supply to the unit. Air supplied to unit should be 90 to 100 PSI
(6.7 to 7 kg/sq. cm).
Open the FLUSH regulator (clockwise) but do not exceed 50-70 psi for
ProGuns.
NOTE
If the O-ring on the flush tank hatch is leaking, you will
hear a hissing noise as you pressurize the flush system.
If the O-ring is leaking, remove the hatch and reinstall
with the second O-ring. See the note regarding O-rings.
Figure 16: Lift the Hatch Lock Figure 15: Release Flush Tank Pressure