Magnum Venus Plastech UNIVERSAL PROPORTIONER - Manual (Page 21)

UPLS SYSTEM OVERVIEW
UP-XX-XX-XX
MAGNUM VENUS PLASTECH REV 1.00
APRIL 2010 PAGE 21
DAILY SHUT-DOWN PROCEDURES
1. Turn pump regulator to 10-15 psi.
a. If the recirculation gun is included, turn to on position to release fluid
pressure.
b. If no recirculation gun is included, open dispense gun to release fluid
pressure into a waste bucket.
2. Leave dispensing gun or recirculation gun in on position and slowly turn pump
regulator up until fluid piston rods are in the down position. This will protect the
fluid piston rods from material hardening on the shaft will add a much longer life
to the rod seals.
3. Once the piston rods are in the down position turn the pump regulator to 0 psi.
4. Turn gun off. If the dispense gun was used, flush and air purge mix chamber.
5. Remove mixers from gun head.
a. Inspect mixers for any build-up of cured materials. If this is the case,
longer flush and air purge cycles may help. A sealed container with
solvent for over night soaking of parts may be helpful.
6. Wipe down face of mix head and handle.
7. Inspect gun for any leaks of A & B materials ether from the ends of the valve rod
or from the two small weep holes on the top of the gun block.
a. If leaks are observed, tighten packing nuts and with pump air regulator set
at zero trigger the gun on/off quickly 15 to 20 times.
b. Flush and air purge gun again.
c. Clean the gun mix chamber threads and apply a light amount of Vaseline
to the external threads only. Never allow for any grease to get inside the
mix chamber.
8. Hang the mix head so that the dispensing holes are facing down. Make sure
there is a catch device underneath for safety purposes if possible.
9. Inspect both pump shaft oil reservoir for material bypass. Only tighten packing
nut when needed and with fluid pressure drained.
10. Turn flush pressure to zero, lift-up the round ring on lid to release fluid pressure.
11. As noted in Material handling section, a Nitrogen blanket is recommended on
nightly shut-down with many resin systems that are used with this system. Set
nitrogen regulator for no more then 1 or 2 psi. Open nitrogen valve, hold the
hose over the materials container opening for around 5 seconds. Install
container lid.