BKI DNF-F Doughnut Fryer - Manual (Page 20)

Doughnut Fryer Maintenance
18
DNF
1. Set the POWER switch to ON and the FILTER MOTOR switch to OFF.
2. Make certain that the FKF filter unit or portable filter unit filter pad is clean and not torn.
3. Position the FKF filter unit or portable filter unit under the main drain valve and make sure it’s
filter screen is in place.
4. Ensure that the FKF filter unit or portable filter unit is plugged into the filter power receptacle.
5. Move the DRAIN handle slowly to the OPEN position until the shortening starts to flow
evenly. This will prevent excessive splashing of hot shortening.
6. When the vat is empty, place the DRAIN handle in the CLOSED position.
7. Make certain that the rinse hose is connected to it’s mating part on the FKF filter unit or
portable filter unit.
8. Holding the hose by the handle, place hose nozzle inside the vat.
Hot shortening may splash out of the vat causing severe injury when filling the
vat if the lid is not held down over the hose nozzle. To prevent shortening
splashes, hold the lid down over the hose nozzle.
9. Hold the lid down over the hose nozzle to prevent shortening splashes.
10. Position the FILTER MOTOR switch to ON and shortening will automatically pump into the
vat.
11. After 1 minute, hold the hose by the handle and carefully raise the lid to check the level of the
shortening.
12. Let the filter continue to pump the shortening until the fill mark in the fryer vat is reached or
until air starts bubbling through the shortening.
13. As soon as air is seen in the shortening, position the FILTER MOTOR switch to OFF to
prevent shortening degradation.
14. Add new shortening if the fill mark has not been reached.
Boil-Out Procedure
Boil-outs remove microscopic particles of carbon that build up on the walls of the fryer vat. To avoid
eventual carbon build-up, off flavors, and shortening breakdown, boil-outs should be done once a week
on each fryer following these procedures.
Always wear appropriate personal protection equipment during the boil-out
process to guard against possible injury from hot cleaning solution.
1. Position the POWER switch to OFF.
2. Drain the clean shortening into an adequate storage container. (Allow the shortening to cool to
room temperature before attempting storage.)