Dean Portable Filters MF90 Series Installation & Operation Manual page 24

Rate Of Oil Return Slowing
Rate of oil return to fryer is slowing.
Is this the first fryer being filtered
during this filtering session?
Check the condition
of the filter paper in
Is filter paper properly
secured in filter pan
Replace filter paper, and reinstall
hold-down ring.
Add the correct amount
of filter powder and
reassemble filter.
Turn motor ON. Has the oil rate
No
Yes
filter pan
installed under hold-down
No
ring, air may be getting into
Yes
No
improved?
Yes
Proceed with
Go to "Blockage Between Filter Pan and
filtration
Disassemble unit and wipe
Check for excess
excess sediment out of the
sediment build-up
bottom of filter pan "sump", and
on filter paper
remove any sediment from
drain ports in pick-up tube.
If paper is incorrectly
the system.
Blockage may be between
the bottom of the filter pan
and the flexible hose
quick-connect
Flex Hose Valve".
6-4
Install new filter paper.