Magnum Venus Plastech Megaject RTM Pro Revison 7_0 - Manual (Page 17)

Megaject RTM Pro Manual – Revision 7.00 – 13
th
APRIL 2006
3. Machine Operating Procedures
This section discusses all of the operating modes of the Megaject RTM Pro in
addition to common procedures.
3.1. Emergency Stop
The emergency stop button is provided to allow the machine to be rapidly de-
energised in the result of an emergency. When this button is pressed air pressure is
vented from the system, mechanical movement is ceased and the DC electrical
supplies to components outside of Bay 1 and the screen housing are de-energised.
The safety circuit also comprises of a reset button on the side of Bay 1. To reset the
safety circuit (after an e-stop or on power-up), the e-stop button must be de-activated
(pulled up) and then the reset button pressed. If these steps do not reset the safety
circuit, check that the machine is correctly connected to a suitable air and electrical
supply. If these steps do not clear the fault, a qualified maintenance technician should
inspect the machine.
NOTE: The safety circuit is designed to protect the operator and prevent reset if a
component has failed. Modifying the safety circuit in order to make the machine
operate, could result in serious injury or death.
3.2. Emergency Flush
This procedure should be carried out in the event of electrical supply failure when the
machine has mixed resin in the injection head.
Ensure injection head or flush line is attached securely to a suitable waste tank.
Connect factory mains air supply (6-9 bar pressure, clean dry air) to emergency flush
port (6mm connector) located in bay 3 above the solvent tank. Turn on supply. The
solvent pump will operate and flush injection head. Keep air supply on for 30-40
seconds.
Turn off supply and remove pipe from the emergency flush connector.
This operation may be repeated if necessary. The main air line must be exhausted
after each flush operation in order to enable the solvent pump to refill. This can be
done by removing the main air line from the emergency flush connector.
NOTE: Flush sequence valves signals are not operated during an emergency flush
operation. In these cases it will be necessary to repeat the above for each set of
autosprue and sequence valves in order to flush them. Connect air to each sequence
valve in turn and re-flush through the head. Repeat this operation for all autosprues in
turn, until all are flushed clean.