Magnum Venus Plastech Megaject RTM Pro Revison 7_0 - Manual (Page 46)

Megaject RTM Pro Manual – Revision 7.00 – 13
th
APRIL 2006
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Ensure that after maintenance has been performed, the doors to bay 1 and bay
2 are locked to prevent access by unauthorised personnel.
6.2.1. Resin pump
During normal use the resin pump lubrication cup needs to be topped-up with pump
lube. This should be checked at least once a week during normal daily production use.
Check the shaft seal (0549) for signs of wear, such as cracks and leaks. A calibration
test can be performed in order to ensure that the piston seal (0555) is not badly worn
or damaged. If less resin is delivered than expected, resin is leaking over the seal as
the piston moves in the pump, and therefore the seal should be replaced.
Seal lifetimes will vary between customers based upon operating environment, resin
system used and operational practices etc. Each customer should develop their own
service schedule based upon their experiences, to find the optimum replacement
period.
It should be noted that unnecessary use of recirculation can shorten the lifetime of
seals.
6.2.2. Catalyst Pump
The catalyst pump needs no regular maintenance. However, any seepage producing
catalyst spillage from the machine through the top seal indicates the catalyst pump top
seal should be replaced. Seepage of catalyst NOT producing leakage onto the
workshop floor from this point on the catalyst pump is acceptable.
Visually check security and condition of catalyst feed pipe from Catalyst bottle and
recirculation pipe and all associated fittings. If any show signs of wear, seepage or
distortion, replace with new parts immediately.
The catalyst inlet filter located within the catalyst bottle should be removed and
cleaned in solvent and water at least every 4 months.
The Catalyst bottle internals must remain clean. If catalyst appears to be discoloured
or any form of sediment is observed within the catalyst bottle, remove and clean as
necessary. Dry out the catalyst bottle before refilling with fresh catalyst and placing
back into service.
Replace worn or damaged components in the catalyst system only with the genuine
replacements from Plastech. Failure to observe this guidance could cause adverse
material reactions which result in the failure of the catalyst system.
6.2.3. Resin & Catalyst Pipework
If air is being drawn into the system and air bubbles are observed in the recirculation
return lines, check the integrity of all inlet pipes, joints and connections.
Joints should be tight and sealed correctly using a proprietary thread sealant. Do not
use sealant on cone and seat type joints.