VEMAG ROBOT HP7E - Page 152

ROBOT HP7E / HP10E / HP12E / HP15E / HP20E9. Troubleshooting
9-2 © VEMAG 2010
Fault Cause Remedy
Air trapped in product. Unsuitable or worn double screw.
Vacuum display uctuating or too
low.
Air relief bores in double screw
housing blocked.
Too much air blended in.
Vacuum system blocked.
Check double screws.
Check vacuum system for leaks,
paying special attention to the dou-
ble screw drive seal. If the vacuum
display is uctuating, the vacuum
pump is taking in air. In this case,
check the oat in the valve.
Open air relief bore using the setting
screws.
Use mixing speed during the nal
bowl-cutting phase.
Check complete vacuum system for
free ow.
Weight uctuations. Unsuitable double screw.
Double screw and double screw
housing worn.
Insufcient vacuum, vacuum unsta-
ble (vacuum display uctuating).
Deformed feed screw, wrong double
screw set.
Check double screw, use 48 mm
double screw pitch for portioning
small portions.
Measure double screw and double
screw housing for wear with a feeler
gauge. Air gap between screw and
housing max. 0.5 mm.
Close air relief bores in double screw
housing. Check vacuum system.
Check feed screw. Gap between
bottom edge of feed screw and top
edge of housing must be
110 - 120 mm.
Drop in output. Double screw and double screw
housing worn.
Vacuum too low.
Deformed feed screw.
Check double screw and double
screw housing for wear. Measure
air gap between double screw and
double screw housing.
Check vacuum setting. The vacuum
should be set so that there is no
product in the vacuum pot.
Check feed screw. Gap between the
bottom edge of the feed screw and
the top edge of the housing must be
110 - 120 mm.
Raw sausage smears. Unsuitable double screw.
Insufcient vacuum, vacuum unsta-
ble (vacuum display uctuating).
Product temperature too high.
Select suitable double screw. Check
product feed for lumps.
Check vacuum system.
Reduce product temperature.