Magnum Venus Plastech Impregnator Roll - Manual (Page 9)

CHAPTER 3
CATALYST ACCUMULATOR CHARGING
NOTE: It is possible to damage the catalyst injector if resin side of system is pressurized first.
To insure against such damage the catalyst side of the system should always be pressurized
before the resin side.
1. With both the regulator and ball valve controlling air flow to resin pump power head in the off
position, open needles of the gun head.
2. Because of the pressure required to force catalyst out to the gun head the accumulator may be
full of catalyst. Allow this fluid to drain from accumulator through the open gun until the floating
ball in the catalyst accumulator is seated on bottom of the accumulator.
NOTE: To speed up this operation, it may be necessary to install charging pump on catalyst
accumulator and connect supply air (approximately 100 PSI) to the charging pump to assist in
purging accumulator.
CAUTION:
charging pump “T” handle must be in full up position before connecting to air
supply. Failure to have handle up may result in damage to pump and/or injury to operator.
NOTE: Care must be taken not to move the catalyst accumulator valve body when installing or
removing charging pump. Catalyst accumulator parts are not much more than hand tight and
any movement could result in seal failure.
3. When poly ball is seated on bottom of accumulator and accumulator is completely empty of
fluid, charge the accumulator to 4 times the operating pressure of the resin pump power head.
(The resin accumulator is charged at the same PSI).
NOTE: A 50-60 PSI operating pressure to power head of resin pump will be enough to supply
resin to nip rolls for most applications.
4. The catalyst accumulator has a very small volume and only 2-4 strokes of charging pump will be
required to fully charge it. When accumulator is charged remove pump from accumulator.
NOTE: Charging Pump Gauge will read supply pressure with t
he “T” handle up and
accumulator pressure with “T” handle down.
5. After removing charging pump, check charging valve of accumulator for a pressure seal by
placing soapy water or other appropriate fluid over valve opening. If no air bubbles appear
install seal cap.
NOTE: If air leaks from charging valve, accumulator will not hold a charge and source of the
leak must be found and eliminated before proceeding.
6. Purge charging pump of catalyst fumes before attempting to charge resin accumulator. Stroke
the pump several times to purge interior of pump.