Magnum Venus Plastech Megaject MKIV Revision 1_2 - Manual (Page 12)

Megaject MK IV Issue 1_2 25/11/2003 Page 12 of 31
Disclaimer: Plastech do not accept responsibility for the performance of Megaject
machines when using non recommended materials. For further information
contact Plastech TT.
4. Fill solvent tank following ‘Filling/Refilling Solvent Tank’ procedure.
5. Remove front guard and catalyst slave pump from the backplate. (DO NOT
remove any catalyst pump pipework.) Operate pump by hand until even resistance
is felt on both strokes and the lines are free of air. If difficulty is encountered
removing all air invert pump and continue operating by hand. Replace pump at
required percentage and refit guard.
6. Adjust pump output regulator to read 2 bar on the pump pressure gauge.
7. If MPG system is fitted, adjust preset regulator until preset level gauge reads 2
bar.
8. Ensure both resin and catalyst recirculation valves are in the recirculation position.
Turn recirculation switch ‘on’. Recirculate until a bubble free fluid flow is observed
at both the resin and catalyst containers and pump output is even on both
strokes. If air in the catalyst system persists turn the recirculation switch ‘off’ and
repeat procedure 6
Note: The recirculation switch should be used for recirculation only and must be turned
‘off’ when priming is complete.
9. Turn resin and catalyst recirculation valves to inject position.
10. Using either the start button (Predetermined counter machines only) or the thumb
start switch, pump 300cc’s (3 counts) into a waste container.
11. Pump 200 cc’s (2 counts) into a cup. DO NOT STIR.
12. The injection head must be flushed. Return resin and catalyst recirculation valves
to recirculate position. Place injection nozzle in a waste container. Operate the air
purge button to expel waste resin. Press the solvent flush button. This will reset
after approximately 30 seconds. Operate the air purge button to dry out the head
and mixer tube.
13. Check that resin in cup gels evenly and fully. If not, return to procedure 6.
Note: We strongly recommend that after injection, the recirculation valves are always
placed back into the recirculation position. This ensures that small amounts of
resin and/or catalyst do not leak forward into the head chambers. Major
movement of the pipes and/or day and night workshop temperature variations
could cause slight weeping into the head if the machine is idle and the
recirculation valves are not left in the recirculation position.