Magnum Venus Plastech Flex Molding Process MKVI Mix - Manual (Page 66)

MKVI Mix Meter System Operations Manual
Rev. 08/2013 Page | 66
E:
CATALYST FAILS
TO PUMP ON BOTH
PUMP STROKES
WHEN RECYCLED
1. AS 1, 2 & 3 ABOVE
2. CATALYST PICK-UP FILTER
CLOGGED
As above
It is imperative that this submerged filter remains clean. Remove from
pipe end, flush in water and air purge to dry.
F:
AIR BUBBLES
OBSERVED IN
CATALYST
RECIRCULATION
FLOW
1. CATALYST LEVEL LOW
2. CATALYST LOWER PUMP INLET
PIPE CONNECTION LOOSE
3. CATALYST LOWER BODY SEAL
WORN
4. CATALYST CONTAMINATED
Refill Catalyst bottle
Check fitting for tightness. If metal olive seal is damaged then renew.
Renew ‘O’ ring seal.
Safely discard contaminated Catalyst. Clean entire catalyst fluid section
and refill with fresh catalyst.
G:
‘WET’ MOULDING.
UNCATALYSED
RESIN PATCHES
1. PUMP REQUIRES REPRIMING
2. WORN SEAL OR RESIDUE IN
EXTERNAL NRV AT HEAD
3. NRV8 SEAL FAILURE
4. AIR/GAS BUBBLES IN
CATALYST
5. SOLVENT LEAKING INTO MOULD
WHEN INJECTING UNDER
VACUUM
Check sufficient Catalyst level. Re-prime Catalyst pump
Service Head external NRV
Service NRV8. Ensure good seal between PTFE cone and seat
Check 1, 2 & 3 above.
Service solvent isolation valve mounted on machine frame, replace seals
if required.